Jobs at Djinni

We power people’s progress.

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries - and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale.

Meet the team!

Join Preply’s Teams and help us power people’s progress through life-changing learning experiences. We’re on a mission to combine the magic of the best tutors with cutting-edge AI to create personalized journeys that keep learners motivated and inspired. The Preply Engineering Team provides the tools to help unlock human potential through learning.

Our team builds scalable, resilient applications using the powerful combination of Python/Django on the backend and ReactJS on the frontend — all to deliver an exceptional, seamless experience to our users.

We’re proudly tech-agnostic, meaning we’re open to candidates with a variety of technical backgrounds, whether that’s Java/Spring, Node.js/Express, Ruby on Rails, Scala/Play, PHP, or Golang. While Python is our main language, prior experience with it isn’t required. What matters most is your willingness to learn, your ability to adapt quickly, and your enthusiasm for using Python in product-focused development.

We implement A/B tests to prove the value of our initiatives and improve our product based on data and students' and tutors' feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best. 

At Preply, we release our product 50-60 times per day by leveraging top-notch CI/CD processes. As a fast-growing company we have diverse technical challenges (sometimes we even write about them on our Engineering Blog) that will allow you to develop your skills at scale. 

What you’ll be doing:

You will work in a cross-functional team alongside the Product Manager, Product Designer, UX Writers, Data Analytics, Technical Leads, Engineers and other cross-functional team members to deliver engaging features through A/B tests and build top-notch products, including, but not limited to:

• Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
• Think beyond the code and about our customers, understand their needs, and define solutions with the team;
• Balance short-term speed of development with the long-term technical quality of our systems;

• As a Senior Engineer, you will leverage your experience to guide the team in making informed technical decisions, such as continuous improvement of best practices (test culture, code reviews, monitoring and scalability of our tools). 

   

What you need to succeed:

• Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);
• Familiar and willing to support small JS/TS tasks when needed;
• Expertise in troubleshooting issues, identifying the root cause, mitigating it, and setting up safeguards to prevent future issues;
• High level of self-organization, ownership, and responsibility;
• A great collaborator with excellent verbal and written communication skills. Minimum B2 English level;

• Willingness to be on-call for your squad (1 week every 5 weeks).

   

Why you’ll love it at Preply: 

• An open, collaborative, dynamic, and diverse culture;
• A generous monthly allowance for lessons on Preply.com, Learning & Development budget, and time off for your self-development;
• A competitive financial package with equity, leave allowance, and health insurance;
• Access to free mental health support platforms;
• The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

Our Principles

• Care to change the world - We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners - For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting - To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time - In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution - What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep - We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset - We proactively seek growth opportunities and believe today's best performance becomes tomorrow's starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar - We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit - We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.

• One Preply - We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other's progress.

   

Diversity, Equity, and Inclusion

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.

🚀 Join RiskSeal as a TechOps for our platform!

We are looking for a Middle+ TechOps Engineer to oversee the smooth operation of our data collection and processing pipelines. The ideal candidate will have experience managing large-scale automated data gathering systems, ensuring seamless deployments, and maintaining system efficiency across a complex microservices environment.This is a remote position.

Responsibilities

• RiskSeal data collection platform support & maintenance
• Configuration of new environment s, clients, data sources
• Troubleshoot data harvesting issues
• Optimize system performance & minimize downtime of data collection algorithms
• Monitoring the state of integrations of data collection
• Take part in production deployments ensuring continuous operation and no customer impact.

Requirements

• 2+ years of experience in a technical support or engineering role in a data-intensive environment.
• Experience working with automation tools, web data collection workflows.
• Experience working with databases such as MySQL, ClickHouse, etc.
• Experience with monitoring and logging tools such as Grafana, LogChef, or similar.
• Strong problem-solving skills and ability to troubleshoot operational bottlenecks.
• Ability to collaborate with cross-functional teams, including developers and DevOps engineers.

What We Offer

• A high-impact role in a fast-growing fintech startup.
• The opportunity to optimize and scale an advanced data collection system.
• A flexible remote work environment with a focus on results.
• Competitive salary and benefits package.

• A chance to work with a team of passionate professionals in a rapidly evolving space.

   

📩 Ready to Join?
Send your resume, and let’s achieve great results together! 

Hi! We are Liven. We develop a global ecosystem of products that help people gain self-observability and steer away from negative thoughts, patterns, and behaviors on their personal journey.

Inside our ecosystem:

— Self-discovery companion — an app that helps 2.5M users build a deeper relationship with themselves. It’s a space for self-exploration through AI coaching, mood trackers, sound practices, and bite-sized learning.
— Online Coaching — sessions with certified experts to navigate complex life situations.
— Supplements — for physical recovery and bodily support.

Liven is a company for the curious. We are driven by curiosity — an inner need to ask questions, dig deeper, and never stop in the face of the unknown. We are passionate about creating products and solutions that truly help. Our entire culture of experimentation exists to find better ways to support and guide people on their self-discovery journey.
 

We are looking for a People Partner. In the role of People Partner at Liven, you’ll be shaping our culture, supporting team growth, and contributing to building a product that truly transforms people’s lives.
 

🎯 How Will You Make An Impact?

— Close collaboration and coaching of team leaders: supporting the development of people management skills, guiding them through complex people situations, fostering a continuous feedback culture;
— Building a system for employee development, retention, and succession planning;
— Contributing to the optimization and improvement of the company’s organizational structure to support scaling and increase cross-team efficiency;
— Supporting and scaling all employee lifecycle processes in line with the growth of Product & Engineering teams (onboarding, performance review, career development, etc.);
— Strengthening company culture and team climate during rapid growth;
— Supporting well-being and mental health initiatives in collaboration with an external provider;
— Using people data (HR analytics) to make evidence-based recommendations and decisions for the business.
 

🧩 What Makes You a Perfect Fit?

— 3+ years of experience as a People/Talent Partner or HR Specialist (preferably with product or technical teams);
— Strong understanding of employee lifecycle processes and hands-on experience scaling them;
— Experience working with various HRMS systems (HiBob, PeopleForce, etc.);
— Excellent communication skills: you can negotiate, express your thoughts clearly, build win-win solutions, use feedback as a tool, and manage communications across teams and working groups;
— Results-oriented: able to set priorities, track progress, find resources, ask the right questions (“what problem are we solving?”), and meet deadlines;
— English: Intermediate / Upper-Intermediate;
— A proactive and initiative-driven mindset: you take ownership, bring new ideas, and experiment to achieve faster and higher-quality results;
 

🌱 Even Better If You:

— Have experience facilitating team sessions or workshops (especially for product and technical leaders);
— Have experience organizing team events that strengthen culture and engagement;
— Have knowledge of or interest in people analytics (collecting and interpreting HR metrics);
— Have experience supporting well-being / mental health programs;
— Have a good sense of humor 😊
 

💪🏻What will you enjoy most about being at Liven?

— Culture of Curiosity: a place for explorers who embrace the unknown and achieve stellar results even when there’s no playbook;
— Growth through Impact: your professional evolution is directly tied to the value you bring to the product and the business;
— Global Impact: develop a product that supports the mental well-being of millions of users worldwide every day;
— Trust and Ownership: the freedom to act, coupled with high responsibility for the outcome;
— Expert Community: access to professional clubs, specialized training, a knowledge base, and a library for your continuous learning;
— Space for Focus: autonomous offices in Kyiv and Warsaw with breakfasts, lunches, lounge areas, walking pads, and massage chairs;
— Sports Community: a running club, yoga, boxing, rock climbing, and functional training to keep you energized;
— Medical Insurance and a stable social package;
— Well-being Program: We care about the mental health of our team as much as we care about our users;
— Support during the war: we provide conditions for stable work and contribute to Ukraine’s recovery together.
 

Still on Day 1: A Constant Expedition

We’ve reached a scale we’re proud of, but inside, we keep the “Day 1” spirit — constantly asking questions, testing hypotheses, and adapting to new contexts. If you are driven by new challenges and want to empower the team with your vision, let’s connect.

Fuel your curiosity at Liven 🔎

We work with startups and established companies to create products in healthcare, fintech, eCommerce, and AI. This role offers real variety — new domains, evolving challenges, and steady professional growth instead of being locked into a single legacy system.

If you’re motivated by fast learning and building features that go live, this might be the right place for you.
 

What You'll Do

• Design and implement scalable backend solutions and contribute to architecture decisions
• Own features end-to-end — from technical discussion to production deployment
• Work closely with the client’s team on project tasks in English
• Optimize performance and improve existing systems
• Take responsibility for production stability and code quality

What We Work With

⚡ Python, FastAPI, Django, Pydantic, PostgreSQL, uv, Ruff

Gets You Extra Points

• Confident communication skills for requirement clarification
• Familiar with SQLModel, Alembic
• Used AI coding tools (Cursor, Claude Code) in daily workflow
• Practical experience working with AI/LLM integrations in real projects
• Experience working on production-ready applications
• Experience with full-stack development using React

What You Bring

• 1+ years of commercial backend development experience
• Strong knowledge of Python
• Solid understanding of REST APIs
• Experience working with SQL databases
• Ability to work independently and take ownership
• English: Upper-Intermediate (B2+) or higher — confident spoken and written communication with clients

What You Get

Work & Growth:

• Fully remote, flexible hours
• Structured code reviews
• Senior engineers who help you level up
• English practice sessions

Compensation:

• Salary in USD
• Performance reviews twice a year
• 15 days paid vacation + sick leave

We power people’s progress.

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled — and it’s creating real impact.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries — and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale.

Meet the team!

Join Preply’s Teams and help us power people’s progress through life-changing learning experiences. We’re on a mission to combine the magic of the best tutors with cutting-edge AI to create personalized journeys that keep learners motivated and inspired.

The Preply Engineering Team provides the tools to help unlock human potential through learning. We implement A/B tests to prove the value of our initiatives and improve our product based on data and students’ and tutors’ feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best.

As a Senior II Backend Engineer, you’ll set the technical direction, lead cross-functional projects, and build systems that power Preply’s global growth engine. Your work will shape how millions of learners connect with tutors worldwide, tackling challenges that are complex in scope and critical to our success.

We are tech-agnostic, meaning we are open to considering candidates with diverse technology backgrounds, such as Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

While Python is our primary programming language, prior experience with it is not mandatory. What truly matters is your enthusiasm for learning Python and your ability to adapt quickly to using it for product development.

What you’ll be doing

• Own and drive technical vision across squads
• Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
• Scope and lead cross-functional initiatives involving design, data, product, security, and other engineering teams.
• Design and implement scalable backend systems, data pipelines, and integrations with third-party platforms
• Mentor and coach junior and middle engineers across squads
• Improve performance, tracking, monitoring, and reliability of our systems with an eye on long-term scalability.
• Collaborate closely with PMs, EMs, designers, and analysts to make data-informed, user-centered decisions.

• Champion engineering best practices: test automation, documentation, observability, and quality-first culture.

   

What you need to succeed

• Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);
• Proven experience leading complex, ambiguous, or greenfield projects end-to-end
• Strong communication and cross-functional collaboration skills (English level B2+)

• Willingness to be on-call for your squad (1 week every 5 weeks).

   

Nice to have

• Side projects or product ownership experience.
• Experience designing systems for marketing attribution, experimentation platforms, or recommendation engines.
• Familiarity with cloud platforms (AWS/GCP) and modern DevOps practices.
• Familiarity and willing to support small JS/TS tasks when needed.

Why you’ll love it at Preply

• An open, collaborative, dynamic, and diverse culture;
• A generous monthly allowance for lessons on Preply.com, Learning & Development budge,t and time off for your self-development;
• A competitive financial package with equity, leave allowance, and health insurance;
• Access to free mental health support platforms;

• The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

   

Our Principles

• Care to change the world — We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners — For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting — To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time — In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution — What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep — We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset — We proactively seek growth opportunities and believe today’s best performance becomes tomorrow’s starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar — We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit — We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.

• One Preply — We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other’s progress.

   

Diversity, Equity, and Inclusion

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.

We power people’s progress.

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled — and it’s creating real impact.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries — and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale.

Meet the team!

Join Preply’s Teams and help us power people’s progress through life-changing learning experiences. We’re on a mission to combine the magic of the best tutors with cutting-edge AI to create personalized journeys that keep learners motivated and inspired.

The Preply Engineering Team provides the tools to help unlock human potential through learning. We implement A/B tests to prove the value of our initiatives and improve our product based on data and students’ and tutors’ feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best.

As a Senior II Backend Engineer, you’ll set the technical direction, lead cross-functional projects, and build systems that power Preply’s global growth engine. Your work will shape how millions of learners connect with tutors worldwide, tackling challenges that are complex in scope and critical to our success.

We are tech-agnostic, meaning we are open to considering candidates with diverse technology backgrounds, such as Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

While Python is our primary programming language, prior experience with it is not mandatory. What truly matters is your enthusiasm for learning Python and your ability to adapt quickly to using it for product development.

What you’ll be doing

• Own and drive technical vision across squads
• Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
• Scope and lead cross-functional initiatives involving design, data, product, security, and other engineering teams.
• Design and implement scalable backend systems, data pipelines, and integrations with third-party platforms
• Mentor and coach junior and middle engineers across squads
• Improve performance, tracking, monitoring, and reliability of our systems with an eye on long-term scalability.
• Collaborate closely with PMs, EMs, designers, and analysts to make data-informed, user-centered decisions.

• Champion engineering best practices: test automation, documentation, observability, and quality-first culture.

   

What you need to succeed

• Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);
• Proven experience leading complex, ambiguous, or greenfield projects end-to-end
• Strong communication and cross-functional collaboration skills (English level B2+)

• Willingness to be on-call for your squad (1 week every 5 weeks).

   

Nice to have

• Side projects or product ownership experience.
• Experience designing systems for marketing attribution, experimentation platforms, or recommendation engines.
• Familiarity with cloud platforms (AWS/GCP) and modern DevOps practices.
• Familiarity and willing to support small JS/TS tasks when needed.

Why you’ll love it at Preply

• An open, collaborative, dynamic, and diverse culture;
• A generous monthly allowance for lessons on Preply.com, Learning & Development budge,t and time off for your self-development;
• A competitive financial package with equity, leave allowance, and health insurance;
• Access to free mental health support platforms;

• The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

   

Our Principles

• Care to change the world — We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners — For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting — To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time — In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution — What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep — We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset — We proactively seek growth opportunities and believe today’s best performance becomes tomorrow’s starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar — We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit — We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.

• One Preply — We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other’s progress.

   

Diversity, Equity, and Inclusion

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.

We power people’s progress.

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled — and it’s creating real impact.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries — and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale.

Meet the team!

Join Preply’s Teams and help us power people’s progress through life-changing learning experiences. We’re on a mission to combine the magic of the best tutors with cutting-edge AI to create personalized journeys that keep learners motivated and inspired.

The Preply Engineering Team provides the tools to help unlock human potential through learning. We implement A/B tests to prove the value of our initiatives and improve our product based on data and students’ and tutors’ feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best.

As a Senior II Backend Engineer, you’ll set the technical direction, lead cross-functional projects, and build systems that power Preply’s global growth engine. Your work will shape how millions of learners connect with tutors worldwide, tackling challenges that are complex in scope and critical to our success.

We are tech-agnostic, meaning we are open to considering candidates with diverse technology backgrounds, such as Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

While Python is our primary programming language, prior experience with it is not mandatory. What truly matters is your enthusiasm for learning Python and your ability to adapt quickly to using it for product development.

What you’ll be doing

• Own and drive technical vision across squads
• Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
• Scope and lead cross-functional initiatives involving design, data, product, security, and other engineering teams.
• Design and implement scalable backend systems, data pipelines, and integrations with third-party platforms
• Mentor and coach junior and middle engineers across squads
• Improve performance, tracking, monitoring, and reliability of our systems with an eye on long-term scalability.
• Collaborate closely with PMs, EMs, designers, and analysts to make data-informed, user-centered decisions.

• Champion engineering best practices: test automation, documentation, observability, and quality-first culture.

   

What you need to succeed

• Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);
• Proven experience leading complex, ambiguous, or greenfield projects end-to-end
• Strong communication and cross-functional collaboration skills (English level B2+)

• Willingness to be on-call for your squad (1 week every 5 weeks).

   

Nice to have

• Side projects or product ownership experience.
• Experience designing systems for marketing attribution, experimentation platforms, or recommendation engines.
• Familiarity with cloud platforms (AWS/GCP) and modern DevOps practices.
• Familiarity and willing to support small JS/TS tasks when needed.

Why you’ll love it at Preply

• An open, collaborative, dynamic, and diverse culture;
• A generous monthly allowance for lessons on Preply.com, Learning & Development budge,t and time off for your self-development;
• A competitive financial package with equity, leave allowance, and health insurance;
• Access to free mental health support platforms;

• The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

   

Our Principles

• Care to change the world — We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners — For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting — To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time — In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution — What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep — We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset — We proactively seek growth opportunities and believe today’s best performance becomes tomorrow’s starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar — We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit — We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.

• One Preply — We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other’s progress.

   

Diversity, Equity, and Inclusion

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.

We power people’s progress.

At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled — and it’s creating real impact.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries — and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale.

Meet the team!

Join Preply’s Teams and help us power people’s progress through life-changing learning experiences. We’re on a mission to combine the magic of the best tutors with cutting-edge AI to create personalized journeys that keep learners motivated and inspired.

The Preply Engineering Team provides the tools to help unlock human potential through learning. We implement A/B tests to prove the value of our initiatives and improve our product based on data and students’ and tutors’ feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best.

As a Senior II Backend Engineer, you’ll set the technical direction, lead cross-functional projects, and build systems that power Preply’s global growth engine. Your work will shape how millions of learners connect with tutors worldwide, tackling challenges that are complex in scope and critical to our success.

We are tech-agnostic, meaning we are open to considering candidates with diverse technology backgrounds, such as Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

While Python is our primary programming language, prior experience with it is not mandatory. What truly matters is your enthusiasm for learning Python and your ability to adapt quickly to using it for product development.

What you’ll be doing

• Own and drive technical vision across squads
• Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
• Scope and lead cross-functional initiatives involving design, data, product, security, and other engineering teams.
• Design and implement scalable backend systems, data pipelines, and integrations with third-party platforms
• Mentor and coach junior and middle engineers across squads
• Improve performance, tracking, monitoring, and reliability of our systems with an eye on long-term scalability.
• Collaborate closely with PMs, EMs, designers, and analysts to make data-informed, user-centered decisions.

• Champion engineering best practices: test automation, documentation, observability, and quality-first culture.

   

What you need to succeed

• Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);
• Proven experience leading complex, ambiguous, or greenfield projects end-to-end
• Strong communication and cross-functional collaboration skills (English level B2+)

• Willingness to be on-call for your squad (1 week every 5 weeks).

   

Nice to have

• Side projects or product ownership experience.
• Experience designing systems for marketing attribution, experimentation platforms, or recommendation engines.
• Familiarity with cloud platforms (AWS/GCP) and modern DevOps practices.
• Familiarity and willing to support small JS/TS tasks when needed.

Why you’ll love it at Preply

• An open, collaborative, dynamic, and diverse culture;
• A generous monthly allowance for lessons on Preply.com, Learning & Development budge,t and time off for your self-development;
• A competitive financial package with equity, leave allowance, and health insurance;
• Access to free mental health support platforms;

• The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

   

Our Principles

• Care to change the world — We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners — For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting — To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time — In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution — What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep — We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset — We proactively seek growth opportunities and believe today’s best performance becomes tomorrow’s starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar — We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit — We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.

• One Preply — We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other’s progress.

   

Diversity, Equity, and Inclusion

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.

Please note that the vacancy is only for candidates ready for offline format of work in Uzhhorod.

Build the most meaningful apps on the latest web technologies!

ABOUT ELEMENTICA

Welcome to Elementica! We are excited to see you on our profile. Elementica is a leading global software development company – expert in delivering web development, mobile application development and IT consulting services of any complexity to clients worldwide.

www.elementica.io

JOB POSITION

We are looking for a talented Python Developer to join our Development Team on a full time long term basis. You will be at the core of our talented Web Apps teams and focus on building the most advanced and meaningful apps and workflows on the latest web technologies.

RESPONSIBILITIES AND DUTIES

As a Python backend engineer, you will play a key role in further ecosystem technical implementation and enhancement. We expect and encourage you to take initiative and be result-oriented and proactive in communication, architecture design, technical implementation, testing and reporting.

We are Product oriented developers with a growth mindset. We are curious problem solvers and we like to collaborate, communicate, share knowledge and technical ideas and grow together.

What you’ll do:

• Comunicate with the product owner and internal management team to perfectly understand domain area, specific tasks and their end goals proir to technical implementation
• Design and document architecture of the module / feature prior to its actual coding
• Write clean, well documented Python code, covered with the end-to-end and unit tests, following clearly defined internal style guides and best practices
• Do thorrough testing of the written code and implemented functionality in order to make sure it works according to the requirements and doesn`t produce new bugs
• Participate in regular stand ups with the end client.

What we look for in you:

• Results-orientation, collaborative, pragmatic and agile mindset
• Strong knowledge in working with FastAPI
• Independence and responsibility
• Working proficiency in English (written and verbal)
• Continuous learning

We are looking for these skills/experience:

• Strong knowledge of FastAPI Python framework
• Understanding of new Python features, 3.12+ versions are used on our projects
• Strong knowledge of Alembic & SQLAlchemy ORM v2.+
• Experience working with OpenAI and similar APIs (Prompt engineering, integrations)
• Experience or at leats clear understanding in writting both end-to-end and unit tests using PyTest
• Understanding of common development principles and best practices (SOLID, DRY, YAGNI), design patterns and Modular Monolithic Architecture
• Experience working with Docker and Docker Compose
• Experience in CI/CD processes is a plus
• Experience with web performance optimizations

What we offer:

* The opportunity to drive the development of cutting-edge software products

* The chance to work on interesting technical challenges such as advanced algorithms, wide integrations or scalable content management

* A positive, highly skilled, young team with a focus on quality

* Hybrid working possibility / Home-office friendly / Flexible working hours

* Pick your own gear: Linux or IOS - whatever works best for you

* A lot of room for your own ideas. We always highly encourage you to work on them together with the team.

* Outstanding compensation based on experience and 20 days vacation

* Sponsored training opportunities with Udemy

Our job offer Python Developer sounds interesting? Then we are looking forward to receiving your application!

Please note that the vacancy is only for candidates ready for offline format of work in Uzhhorod.

Build the most meaningful apps on the latest web technologies!

ABOUT ELEMENTICA

Welcome to Elementica! We are excited to see you on our profile. Elementica is a leading global software development company – expert in delivering web development, mobile application development and IT consulting services of any complexity to clients worldwide.

www.elementica.io

JOB POSITION

We are looking for a talented Fullstack Javascript Developer to join our Development Team. You will be at the core of our talented Web Apps teams and focus on building the most advanced and meaningful apps and workflows on the latest web technologies.

RESPONSIBILITIES AND DUTIES

As a fullstack developer, you will work on our next generation applications, a specific project critical to our customer’s needs. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new challenges as we continue to push technology forward.

We are Product oriented developers with a growth mindset. We are curious problem solvers and we like to collaborate, communicate, share knowledge and technical ideas and grow together.

What you’ll do:

- Develop cloud based frontend and backend web applications

- Work in all phases of the software development life-cycle (planning, design, implementation, deployment, monitoring and support)

- Collaborate and grow in a dynamic environment while working in small, agile and cross functional teams

- Use the latest technologies to solve real problems for our customers

- Communicate and coordinate with our engineering team in Ukraine.

What we look for in you:

- Results-orientation, collaborative, pragmatic and agile mindset

- Strong knowledge in working with Javascript and Typescript

- Expertise with cloud service providers - Microsoft Azure

- Working proficiency in English (written and verbal)

- Continuous independent learning

We are looking for these skills/experience:

* Experience with React hooks, CSS-in-JS, Redux, Jest, Next.js

* Understanding of React components, rendering and optimisation principles

* Experience with web performance optimizations

* Deep knowledge of NestJS

* Familiarity with ORM (Object Relational Mapper) libraries - TypeORM

* Proficiency in unit and e2e testing, Jest, react-testing-library

* Strong knowledge of relational (PostgreSQL) and non-relational (MongoDB) databases

* Experience working with Docker and Docker Compose

* Understanding of common development principles and best practices (SOLID, DRY, YAGNI) and design patterns

* Experience in CI/CD processes is a plus

What we offer:

* The opportunity to drive the development of cutting-edge software products

* The chance to work on interesting technical challenges such as advanced algorithms, wide integrations or scalable content management

* A positive, highly skilled, young team with a focus on quality

* Hybrid working possibility / Flexible working hours

* Pick your own gear: Linux or IOS - whatever works best for you

* A lot of room for your own ideas. We always highly encourage you to work on them together with the team.

* Outstanding compensation based on experience and 20 days vacation

* Sponsored training opportunities with Udemy

Our job offer Fullstack Javascript Developer sounds interesting? Then we are looking forward to receiving your application!

Please note that the vacancy is only for candidates ready for offline format of work in Uzhhorod.

Build the most meaningful apps on the latest web technologies!

ABOUT ELEMENTICA

Welcome to Elementica! We are excited to see you on our profile. Elementica is a leading global software development company – expert in delivering web development, mobile application development and IT consulting services of any complexity to clients worldwide.

www.elementica.io

JOB POSITION

We are looking for a talented React Developer to join our Development Team. You will be at the core of our talented Web Apps teams and focus on building the most advanced and meaningful apps and workflows on the latest web technologies.

RESPONSIBILITIES AND DUTIES

As a frontend developer, you will work on our next generation applications, a specific project critical to our customer’s needs. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new challenges as we continue to push technology forward.

We are Product oriented developers with a growth mindset. We are curious problem solvers and we like to collaborate, communicate, share knowledge and technical ideas and grow together.

What you’ll do:

- Develop cloud based frontend web applications

- Work in all phases of the software development life-cycle (planning, design, implementation, deployment, monitoring and support)

- Collaborate and grow in a dynamic environment while working in small, agile and cross functional teams

- Use the latest technologies to solve real problems for our customers

- Communicate and coordinate with our engineering team in Ukraine.

What we look for in you:

- Results-orientation, collaborative, pragmatic and agile mindset

- Strong knowledge in working with Javascript, Typescript

- Expertise with the cloud (preferably Microsoft Azure)

- Working proficiency in English (written and verbal)

- Continuous independent learning

We are looking for these skills/experience:

* Strong knowledge of JavaScript and TypeScript

* Experience with React hooks, CSS-in-JS, Redux, Jest, Next.js
* Pixel-perfect designs implementation practice

* Experience working with websockets

* Proficiency in unit and e2e testing, Jest, react-testing-library

* Understanding of common development principles and best practices (SOLID, DRY, YAGNI) and basic understanding of design patterns

* Experience in CI/CD processes is a plus

* Experience with web performance optimizations

What we offer:

* The opportunity to drive the development of cutting-edge software products

* The chance to work on interesting technical challenges such as advanced algorithms, wide integrations or scalable content management

* A positive, highly skilled, young team with a focus on quality

* Hybrid working possibility / Flexible working hours

* Pick your own gear: Linux or IOS - whatever works best for you

* A lot of room for your own ideas. We always highly encourage you to work on them together with the team.

* Outstanding compensation based on experience and 20 days vacation

* Sponsored training opportunities with Udemy

Our job offer React Developer sounds interesting? Then we are looking forward to receiving your application!

WHY THIS ROLE EXISTS
 

There is a difference between a developer who leads and a leader who develops. This role requires both, but in the right proportion. We need someone who can look at a codebase built by one person under pressure, understand it without judging it, and chart a clear path forward that the whole team can execute.
 

The engagement is a 12-plus month build of a custom internal platform for a US-based IT services company. The platform replaces a third-party PSA system and consolidates billing, ticketing, project management, and service delivery into one product. The company built the foundation themselves because they want a competitive advantage, not a vendor dependency. The existing developer is capable. What the team is missing is someone who can structure the work, raise the quality bar, and translate technical decisions into language that business stakeholders can act on.

We are in the pre-sale stage. The pilot is active. We are building a shortlist now so we are ready to move the moment the engagement confirms.
 

WHAT YOU WILL OWN
 

• Conducting an honest, constructive assessment of the existing codebase and identifying what needs to change and in what order
• Defining the technical roadmap for 2026 and presenting it to business stakeholders in terms of tradeoffs, not just tasks
• Making and documenting architecture decisions that the team can build on with confidence
• Leading a small team of two to three developers, including an existing in-house developer who has been working alone for 18 months
• Mentoring without micromanaging: setting standards, reviewing work, and creating an environment where the team improves over time
• Conducting or co-conducting technical interviews for developers joining the team
• Serving as the technical voice in client calls, translating engineering realities into business impact without oversimplifying or alarming
• Ensuring delivery stays on track against a hard deadline: the platform needs to be fully operational by January 2027
   

WHAT WE ARE LOOKING FOR
 

• 6 or more years in software engineering, with at least 2 years in a lead, principal, or equivalent role
• A track record of taking ambiguous or under-structured codebases and creating order without creating conflict
• Genuine experience communicating technical decisions to non-technical stakeholders who are engaged, opinionated, and smart
• Comfort with serverless and edge computing architectures (Cloudflare Workers, AWS Lambda, or similar)
• The ability to work fractionally and manage your own time and availability without being managed
• Availability to lead client calls in the US CT window
• A principled approach to code quality: you set standards because you believe in them, not because someone asked you to
   

TECH STACK
 

• Frontend: React 18, TypeScript, Vite, Shadcn/ui, TanStack Query, Zustand
• Backend: Node.js on Cloudflare Workers (serverless)
• Database: PostgreSQL
• Auth and backend services: Supabase

The tech stack is not exotic. The complexity here is organizational and architectural, not technological. The right person will see that clearly.

HOW WE WORK
 

You will operate at the intersection of two teams: our engineers on one side, and the client's internal team on the other. 

The full-stack developers on the team own execution. You own direction. That distinction matters and we expect everyone to respect it.

WHAT WE OFFER
 

• A technically interesting leadership challenge with real organizational complexity and a clear product vision
• A fractional structure that respects your time and lets you maintain other professional commitments
• A client relationship built on trust and directness, not politics
• The opportunity to shape not just one engagement but the standard for how Speed and Function leads technical work
• Transparent communication at every stage of the process, including honest conversations when circumstances change

ABOUT SPEED AND FUNCTION
 

Speed and Function is a software engineering firm that builds custom products for growth-oriented businesses. We work on engagements where the technical and human challenges are inseparable, and we have built our reputation by treating both with equal seriousness.

This engagement came through the community of founders and operators committed to long-term organizational growth. The client is not running a competitive evaluation. They chose us because of who we are and how we work. We hold that trust carefully.

HOW TO APPLY
 

Send a short message explaining your interest in this specific role and what you believe good technical leadership actually looks like in practice. Attach your CV or share your LinkedIn profile.

We do not need a formal cover letter. We need to understand how you think.

Evowill is looking for a Junior Python Developer who is passionate about web development and eager to grow in a supportive and dynamic environment. We offer a clear path: starting with a hands-on internship and transitioning into a commercial project role — 100% of our juniors join real projects.

Requirements:

• Python, Django
• SQL (MySQL / PostgreSQL)
• REST API, OOP
• Linux
• Git, GitHub/GitLab
• English: Intermediate
• Pet projects on GitHub/GitLab
• Fast learner, organized, responsible

Would be a plus:

• Technical education (3rd year or higher)
• Experience with Django, SOLID, Docker, CircleCI, JavaScript, React, HTML, CSS, non-relational databases, testing

Internship Stage (3 months):

• Full-time, practical learning
• Pet projects, technical interview preparations, and soft skills training
• English Speaking Club
• Senior Developers mentors from Ukraine and Colombia
• Technologies: JS, TS, React, Next.js, Python, Django, Docker, PostgreSQL, AWS, etc.

Project Stage:

• Join commercial projects as a Fullstack Developer
• Salary from $1000 with regular reviews
• Ongoing mentorship and technical support
• Optional English club and extra tech learning

WHY THIS ROLE EXISTS
 

Most job ads describe a seat to fill. This one describes a problem worth solving. We are building a product that an IT services company in the United States depends on to run its entire operation: billing, ticketing, project management, and service delivery, all in one place. The company chose to build it themselves rather than accept a generic off-the-shelf tool, because they believe their operations deserve better. We agree. Now they need a developer who takes the same view of their own craft.
 

We are in the pre-sale stage of what we expect to become a 12-plus month engagement. The pilot is active. We are not posting this role to fill a pipeline spreadsheet. We are building a shortlist of people we would genuinely want on this team, so we are ready to move the moment the engagement confirms.
 

WHAT YOU WILL OWN
 

• Delivering complete product features end-to-end, from data model to interface, without waiting for handoffs
• Building and iterating on core modules: automated billing, ticket management, time tracking, and project coordination
• Writing code that your teammates can read, extend, and trust
• Contributing to the shared codebase alongside an existing in-house developer and a Tech Lead who sets technical direction
• Surfacing problems early and proposing solutions rather than waiting to be told what to do
• Participating actively in planning and estimation so timelines reflect reality, not optimism
   

WHAT WE ARE LOOKING FOR
 

• 4+ years of experience shipping production applications with React and Node.js
• Real ownership of features across the full stack, not just comfort on one side
• Experience with PostgreSQL or a comparable relational database in production
• The discipline to write maintainable code even when the deadline feels close
• Clear, direct communication in a distributed team context
• Availability to overlap with US CT for team calls (approximately 12:00 to 14:00 СТ time)
   

TECH STACK

• Frontend: React 18, TypeScript, Vite, Shadcn/ui, TanStack Query, Zustand
• Backend: Node.js deployed on Cloudflare Workers (serverless architecture)
• Database: PostgreSQL
• Auth and backend services: Supabase
   

No Supabase or Cloudflare Workers experience required. If you have worked with Firebase, AWS Lambda, or any serverless Node.js environment, you will find your footing quickly. 
 

HOW WE WORK
 

The team is distributed. The client is based in Dallas, Texas. 

Expect one or two overlap calls per week in the 12:00 to 14:00 CT time window. The rest of your day is yours to structure. We trust people to manage their own time, because we hire people who have earned that trust.

The Tech Lead owns architecture direction and stakeholder communication. Your focus is delivery. The two roles are designed to complement each other without competing.
 

WHAT WE OFFER
 

• A real product with a real deadline and real stakes, not a maintenance backlog
• A Tech Lead who sets clear direction so you can focus on execution
• Full-time engagement for the right person once the pilot confirms
• Transparent communication throughout the process, including honest updates if circumstances change
• A team that treats engineering craft as a professional standard, not a talking point

ABOUT SPEED AND FUNCTION
 

Speed and Function is a software engineering firm that builds custom products for growth-oriented businesses. We work on engagements that require both technical depth and the ability to operate as a trusted partner to business leaders. We are selective about the work we take on, because we believe the quality of what we build reflects who we are.

This engagement came through the community of founders and operators who take organizational development seriously. The client is not talking to other agencies. We are their only option, and we intend to earn that position every week.

HOW TO APPLY
 

Send a short note explaining why this specific role interests you, alongside your CV or LinkedIn profile. We do not need a cover letter that restates your resume. Tell us something about how you think about your work.

Project overview

The project focuses on building a governed conversational BI solution on Databricks using Genie. It includes designing scalable data architecture, implementing strong data governance with Unity Catalog, and enabling reliable SQL and AI-driven data consumption through well-defined semantic models.

Responsibilities

• Define and oversee the governed conversational BI architecture on Databricks using Genie
• Ensure governance from day zero, including compliance with Unity Catalog policies for all data assets
• Implement RBAC, row-level security (RLS), lineage, and audit logging
• Design and validate the Medallion architecture (Bronze / Silver / Gold layers)
• Define CI/CD processes in Azure Pipelines for semantic model management
• Oversee the setup of two Genie Spaces and ensure guardrail responses for out-of-scope questions
• Drive quality gates, benchmark cycles, and SME validation processes
• Build and maintain semantic models and knowledge structures
• Define data models for SQL and AI consumption

Requirements

• Experience with Databricks (on Azure), including Lakeflow pipelines
• Strong knowledge of Unity Catalog, including data governance, RBAC, and lineage
• Experience working with Genie (Databricks AI-powered analytics interface)
• Experience with CI/CD processes using Azure Pipelines for semantic model version control
• Strong SQL experience, including SQL Warehouse, Delta Lake, and Gold schema management
• Knowledge of PII masking, encryption, and audit/compliance frameworks
• Experience with template-based deterministic SQL design