Jobs at Djinni

8391
  • Β· 295 views Β· 32 applications Β· 12d

    Java Team Lead

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B2
    Dripify is a pioneering, remote-first IT product company specializing in outreach automation products. Our platform empowers businesses by revolutionizing hiring, sales, and marketing communication processes, making interactions more efficient and...

    Dripify is a pioneering, remote-first IT product company specializing in outreach automation products. Our platform empowers businesses by revolutionizing hiring, sales, and marketing communication processes, making interactions more efficient and seamless.

    Project β€” dripify.com

    We’re looking for a Java Team Lead who will split their time between hands-on backend development (50%) and technical/team leadership (50%). You’ll lead a team of 5 engineers, ensure delivery quality, and own architectural decisions, while also contributing code and driving technical excellence.

     

    Requirements

    β€” 5+ years of hands-on Java development experience (Java 21+).
    β€” 2+ years leading a development team.
    β€” Deep practical experience with Spring Boot modules (Web, Security, Data, Messaging).
    β€” Strong knowledge of Java concurrency, multithreading, and backend system design.
    β€” Proficient in SQL databases (PostgreSQL preferred).
    β€” Experience with REST APIs and asynchronous messaging (SNS/SQS).
    β€” Skilled in CI/CD, code quality gates, and automated testing.
    β€” Hands-on with Docker, Linux, and system-level debugging.
    β€” Familiar with monitoring/logging tools (ELK, Prometheus, Grafana).
    β€” Strong focus on security best practices: auth, validation, access control.
    β€” Working knowledge of AWS: IAM, EC2, RDS, S3, CloudWatch, Secrets Manager.

     

    Responsibilities

    Development (50%)
    β€” Build modular, secure, and maintainable backend systems using Java 21+ and Spring Boot.
    β€” Design and implement RESTful APIs and event-driven services (SNS/SQS).
    β€” Write tested, high-quality code with strong focus on unit/integration testing.
    β€” Ensure CI/CD integration, monitoring, and production readiness.
    β€” Drive system performance and scalability improvements.

    Leadership & Delivery (50%).
    β€” Lead a backend team: mentorship, code reviews, and engineering growth.
    β€” Own delivery quality: scope planning, progress tracking, risk mitigation.
    β€” Document and communicate architectural decisions.
    β€” Coordinate cross-functionally with product managers, DevOps, and QA.
    β€” Promote best practices in secure development and clean architecture.

     

    Would be a plus

    β€” Experience in designing and operating microservice-based architectures.
    β€” Familiarity with Kubernetes (EKS or self-managed).
    β€” Experience with Terraform and Infrastructure-as-Code.
    β€” AWS Certifications (e.g., Developer Associate, Solutions Architect).
    β€” Bachelor’s or Master’s in Computer Science or related field.

     

    Work conditions

    β€” 100% remote position, providing flexibility and work-life balance.
    β€” Competitive salary reflecting your skills and expertise.
    β€” 24 days of paid vacation per year to recharge and relax.
    β€” 10 days of paid sick leave.
    β€” Educational opportunities.
    β€” Compensation budget for medical and hobby/sport expenses.
    β€” Generous budget for birthdays and anniversaries.
    β€” Online and offline team events.
    β€” A collaborative and innovative work environment with passionate team members.

     

    Hiring process

    βœ…Interview with Recruiter (45min) β€” βœ…Tech interview with Teach Leader (1.5 hour) β€” βœ…Interview with CTO (45min) β€” βœ…Reference check β€” βœ…Offer

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  • Β· 333 views Β· 28 applications Β· 6d

    Middle Data Scientist (LLM, LangChain, RAG)

    Full Remote Β· Countries of Europe or Ukraine Β· 2 years of experience Β· English - B2
    Are you a Data Scientist with a love of LLMs, generative AI? We are looking for a passionate Data Scientist to implement AI solutions aimed at achieving business goals. This role offers the opportunity to work on cutting-edge AI adoption projects that...

    Are you a Data Scientist with a love of LLMs, generative AI?

     

    We are looking for a passionate Data Scientist to implement AI solutions aimed at achieving business goals.

     

    This role offers the opportunity to work on cutting-edge AI adoption projects that helps to improve current business processes.

     

    Skills requirements:
    β€’ Strong Python Experience (2 year +);
    β€’ Experience with LLM , Diffusion models;
    β€’ Knowledge of Prompt engineering;
    β€’ Experience with Gen AI-related technologies such as LangChain and RAG;
    β€’ Experience with Neural Networks (Optional) ;
    β€’ Experience with NLP , Predictive analytics and Machine learning;
    β€’ Experience with Pandas;
    β€’ Experience with SQL, including experience with large datasets;
    β€’ Strong experience in statistics;

    Key responsibilities:
    β€’ Develop AI agents that utilize LLM, RAG and langchain approach;
    β€’ Implement LLM and Diffusion models to boost business productivity;
    β€’ Utilize LLM (LLM Vision) to improve object detection, text classification and extraction;
    β€’ Create forecasting, recommendation, and classification models;
    β€’ Transform business challenges to AI applications;

     

    We offer:

    β€’ Great networking opportunities with international clients, challenging tasks;

    β€’ Building interesting projects from scratch using new technologies;

    β€’ Personal and professional development opportunities;

    β€’ Competitive salary nominated in USD;

    β€’ Paid vacation and sick leaves;

    β€’ Flexible work schedule;

    β€’ Friendly working environment with minimal hierarchy;

    β€’ Team building activities, corporate events.

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  • Β· 244 views Β· 65 applications Β· 22d

    Node.js Backend Developer

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· English - None
    Backend Developer (Node.js) for the international product IT company, which provides a full-stack package of complex AdTech solutions for digital advertisers, publishers and ad agencies worldwide. The company develops white-label platforms for...

    Backend Developer (Node.js) for the  international product IT company,  which provides a full-stack package of complex AdTech solutions for digital advertisers, publishers and ad agencies worldwide. 

      The company develops white-label platforms for enterprise clientsβ€”custom turnkey solutions to automate and optimize digital advertising.

    Products company : SSP, DSP, Ad Exchange platforms.

    Main markets - Tier 1-2 

    The technical team - up to 30 people (CTO, Team Lead, Back-end -10, Front-end developers, QA, DevOps )

    Project stack: Node.js (backend), NoSQL, SQL, RedisMongoDB,  Linux.

    Locations/Offices - Kyiv, Lviv, Odesa, Mykolaiv or remote.

     

     

     Requirements:

    • At least 3 + years of backend development experience, with a strong focus on Node.js
    • Deep understanding of asynchronous programming in Node.js and event loop
    • Knowledge or  experience with high-load systems
    • Familiarity with SQL, NoSQL, and in-memory key-value databases for data storage and optimization;
    • Knowledge of network protocols such as HTTP, TCP, and FTP;
    • Expertise in identifying and resolving issues efficiently;
    • Experience or understanding unit testing;
    • Experience with Linux servers, handling basic administration tasks;
    • Performance optimization skills;

     

    Responsibilities:

    • Write clean, efficient, and maintainable code following best practices
    • Develop and maintain scalable backend services using Node.js 
    • Debug and resolve issues in the backend systems
    • Manage and optimize SQL and NoSQL databases 
    • Write and maintain unit tests to ensure code quality
    • Collaborate with team lead, frontend developers, CTO, Delivery Coordinator and other team members
    •  Continuously learn and apply new technologies to improve backend systems

     

    We offer:

    • Vacation 21 calendar days per year (15 working days) - cumulative, the balances are 

               carried over from year to year

    • medical insurance
    • days off - 7 days per year
    • additional 1 day of absence per year on the occasion of celebrating Birthday
    • 15 paid sick leave per year
    • 15 unpaid leave per year
    • days off on public holidays
    • referral bonuses
    • coworking compensation
    • corporate technology

     

     

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  • Β· 23 views Β· 4 applications Β· 28d

    Link Strategist (SEO Account Manager)

    Full Remote Β· Worldwide Β· 2 years of experience Β· English - B2
    Admix Global, founded in 2016, is a holding company with 3 subsidiaries and a team of 80 experts. We specialize in promoting and optimizing projects in Western markets. We’ve been recognized as a top Link-Building company by Clutch, a leading agency by...

    Admix Global, founded in 2016, is a holding company with 3 subsidiaries and a team of 80 experts. We specialize in promoting and optimizing projects in Western markets.
     

    We’ve been recognized as a top Link-Building company by Clutch, a leading agency by The Manifest, and consistently in the Top 100 fastest-growing companies.
     

    We are expanding rapidly and looking for a proactive Link Strategist (SEO Account Manager) for our project Insert.Link to join our team and help grow our initiatives.
     

    Responsibilities:

    • Develop link-building strategy (Europe, US, Canada, Australia);
    • Participate in calls with the clients to discuss and improve their link-building strategy;
    • Manage campaign expenses, staying on budget, estimating monthly costs, and reconciling discrepancies;
    • Perform ongoing keyword discovery, expansion, and optimization;
    • Track website performance with Ahrefs;
    • Upsell new link-building opportunities to existing clients;
    • Provide demos of our link-building platform;
    • Be a link-building guru who helps clients reach their goals.
       

    What we expect from the candidate:

    • Proven SEO experience in Western markets (Europe, US, Canada, Australia);
    • English B2+ (spoken and written);
    • An extroverted personality with a strong desire to join calls with the clients;
    • Knowledge of ranking factors and search engine algorithms;
    • Proven experience working with a link-building budget of over $5k;
    • Up-to-date with the latest trends and best practices in SEO and link building.
       

    What we offer:

    • Opportunities for professional growth with access to training and career advancement within the company.
    • Flexibility to explore new career paths β€” switch roles within the company or transfer to another department.
    • Competitive salary with regular performance-based reviews.
    • Structured yet flexible work schedule: Monβ€”Fri, 9:00 AM to 6:00 PM, with a flexible break. Weekends off (Satβ€”Sun).
    • Company-sponsored English language courses to enhance your skills.
    • 50% compensation for gym membership to support your well-being.
    • Paid probation period.
    • Official employment or the option to work as a private entrepreneur.
    • Work from the office or remotely β€” your choice.
    • 18 days of paid vacation annually, plus covered sick leave.


    If you’ve got solid experience in link building and enjoy helping others craft effective strategies, let’s chat β€” we’ve got some exciting things to discuss!
     

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  • Β· 541 views Β· 28 applications Β· 4d

    Founding Engineer for an AI startup (Python / Fast API / Backend only)

    Part-time Β· Full Remote Β· Worldwide Β· 3 years of experience Β· English - B1
    About Us: Lemmi is an AI-powered career companion revolutionizing how professionals navigate their career journey. We simplify the job search process by providing intelligent guidance on best practices and automating routine tasks. Our platform features...

    About Us:

    Lemmi is an AI-powered career companion revolutionizing how professionals navigate their career journey. We simplify the job search process by providing intelligent guidance on best practices and automating routine tasks. 

    Our platform features AI-powered mock interviews that identify skill gaps, provide targeted practice, and build confidence through measurable progress tracking.

     

    As an early-stage Ukrainian startup with a globally distributed team, we're building the future of career development technology.

     

     

    Your Mission:

    As our Python Founding Engineer, you will work directly with the founders and our development team to implement product strategy and prepare our platform for scale. This is an exceptional opportunity to gain hands-on experience in an early-stage startup while diving deep into modern Python development, generative AI, and other back end technologies. You'll develop crucial product thinking skills while contributing to a mission-driven platform that helps thousands of job seekers land their dream roles.

     

     

    Requirements:

    • Strong knowledge of Python, Fast API ecosystem
    • Experience integrating with popular AI solutions
    • Prompt engineering skills
    • Strong problem-solving abilities and critical-thinking skills
    • Ability to work independently while knowing when to seek guidance
    • Deep experience using AI coding tools like Claude Code or Cursor in your daily work
    • At least 3 years of commercial experience

     

    Key Responsibilities:

    • Feature Development: Extend current functionality and collaborate closely with the frontend team to deliver seamless new features
    • System Architecture: Work alongside senior back-end engineers to stabilize and optimize our backend infrastructure while addressing technical debt
    • Build Core Systems: Develop the core product logic with supervision and support.
    • Cross-Functional Collaboration: Participate in product discussions and contribute ideas for improving user experience
    • Expand our AI integrations and take ownership of our AI-based logic: Continuously improve integrated system performance and integrate new systems. In the future, start developing our own solutions.

     

     

    Why Join Us:

    • Direct Impact: Your code will directly shape product development and impact thousands of users' career journeys
       
    • Exceptional Learning Opportunity: Work directly with our founder and senior engineers (back-end and machine learning specialists) who are committed to mentoring and accelerating your professional growth
       
    • Ultimate Flexibility: Choose work hours that suit your lifestyle (~15-20 hours/week), perfect for balancing with studies or other commitments
       
    • Cutting-Edge Technology Stack: While focusing on Python solutions, you can contribute to our AI components and explore modern generative AI integrations, prompt engineering, and LLM concepts
       
    • Industry Insider Knowledge: Gain unique insights into job market dynamics, recruitment strategies, and career development best practices that will benefit your own career forever

     

     

    Our Values:

    • Continuous Learning: We embrace challenges as opportunities and invest in constant skill development
       
    • Ownership: We take full responsibility for our work, delivering results that exceed expectations
       
    • Customer-First: We're passionate about solving real problems that help people advance their careers
       
    • Data-Driven: We base decisions on research, metrics, and user feedback rather than assumptions
       
    • T-Shaped Development: We cultivate broad knowledge across engineering and product domains while developing deep expertise in our specialties

     

    Our team:

    - 1 Founding FE Engineer (Staff), 1 Senior FE Engineer, 1 Middle FE Engineer
    - 2 Senior .NET Engineers

    - 1 Founding Python Engineer (Staff)

    - CPO (founder) + 2 Product Mangers

    - UI/UX Designer

    - Sales Manger

    - CEO/Founder with technical background

     

    Important Note:

    This position begins as an equity-based opportunity as we're an early-stage startup preparing for our initial investment round in early 2026. The paid option won't be available, at least, until the end of Q1 2026. Upon successful funding, this role will transition to a competitive full-time or part-time paid position. This is an ideal opportunity for motivated individuals who want to get in on the ground floor of a promising startup and grow with the company.

     

    We are a Ukrainian startup with team members distributed globally, operating with a remote-first culture.

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  • Β· 941 views Β· 52 applications Β· 4d

    Founding Engineer for an AI startup (.NET / Backend only / AI integrations)

    Part-time Β· Full Remote Β· Worldwide Β· 3 years of experience Β· English - A2
    About Us: Lemmi is an AI-powered career companion revolutionizing how professionals navigate their career journey. We simplify the job search process by providing intelligent guidance on best practices and automating routine tasks. Our platform features...

    About Us:

    Lemmi is an AI-powered career companion revolutionizing how professionals navigate their career journey. We simplify the job search process by providing intelligent guidance on best practices and automating routine tasks. 

    Our platform features AI-powered mock interviews that identify skill gaps, provide targeted practice, and build confidence through measurable progress tracking.

     

    As an early-stage Ukrainian startup with a globally distributed team, we're building the future of career development technology.

     

     

    Your Mission:

    As our .NET Engineer, you will work directly with the founder and our development team to implement product strategy and prepare our platform for scale. This is an exceptional opportunity to gain hands-on experience in an early-stage startup while diving deep into modern .NET development, generative AI, and Python technologies. You'll develop crucial product thinking skills while contributing to a mission-driven platform that helps thousands of job seekers land their dream roles.

     

     

    Requirements:

    Must-Have:

    • Strong knowledge of C# and .NET ecosystem
    • Strong problem-solving abilities and critical-thinking skills
    • Ability to work independently while knowing when to seek guidance
    • Deep experience using AI coding tools like Claude Code or Cursor in your daily work
    • At least 3 years of commercial experience
    • Prompt engineering skills

     

    Nice-to-Have:

    • Basic Python programming skills
    • Understanding of Generative AI/LLM concepts
    • Experience with cloud services (AWS/GSP)
    • Familiarity with agile development practices

     

    Key Responsibilities:

    • Feature Development: Extend current functionality and collaborate closely with the frontend team to deliver seamless new features
    • System Architecture: Work alongside senior back-end engineers to stabilize and optimize our backend infrastructure while addressing technical debt
    • Build Core Systems: Develop a retention engine and flexible notification system from scratch (with supervision) to enhance user engagement based on behavioral patterns
    • Cross-Functional Collaboration: Participate in product discussions and contribute ideas for improving user experience

     

     

     

    Why Join Us:

    • Direct Impact: Your code will directly shape product development and impact thousands of users' career journeys
       
    • Exceptional Learning Opportunity: Work directly with our founder and senior engineers (back-end and machine learning specialists) who are committed to mentoring and accelerating your professional growth
       
    • Ultimate Flexibility: Choose work hours that suit your lifestyle (~15-20 hours/week), perfect for balancing with studies or other commitments
       
    • Growth Potential: Clear progression path from junior to senior roles as we scale, with opportunities to lead future initiatives
       
    • Cutting-Edge Technology Stack: While focusing on core .NET solutions, you can contribute to our AI components in Python and explore modern generative AI integrations, prompt engineering, and LLM concepts
       
    • Industry Insider Knowledge: Gain unique insights into job market dynamics, recruitment strategies, and career development best practices that will benefit your own career forever

     

     

    Our Values:

    • Continuous Learning: We embrace challenges as opportunities and invest in constant skill development
       
    • Ownership: We take full responsibility for our work, delivering results that exceed expectations
       
    • Customer-First: We're passionate about solving real problems that help people advance their careers
       
    • Data-Driven: We base decisions on research, metrics, and user feedback rather than assumptions
       
    • T-Shaped Development: We cultivate broad knowledge across engineering and product domains while developing deep expertise in our specialties

     

     

    Our team:

    - 1 Founding FE Engineer (Staff), 1 Senior FE Engineer, 1 Middle FE Engineer
    - 1 Senior .NET Engineer

    - 1 Founding Python Engineer (Staff)

    - CPO (co-founder) + 2 Product Mangers

    - UI/UX Designer

    - Sales Manger

    - CEO/Founder with technical background

     

    Important Note:

    This position begins as an equity-based opportunity as we're an early-stage startup preparing for our initial investment round in early 2026. The paid option won't be available, at least, until the end of Q1 2026. Upon successful funding, this role will transition to a competitive full-time or part-time paid position. This is an ideal opportunity for motivated individuals who want to get in on the ground floor of a promising startup and grow with the company.

     

    We are a Ukrainian startup with team members distributed globally, operating with a remote-first culture.

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  • Β· 213 views Β· 37 applications Β· 14d

    Middle/Senior Full Stack Developer β€” Automation of AI tasks for Insurance company

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· English - C1
    Full Stack Developer β€” Automating AI Workflows in Insurance Summary We’re building end-to-end automation for AI tasks in the insurance sector. Over the next 10 months, we’ll be prototyping before launching a dedicated spinout. You’ll work closely with...

    🌐 Full Stack Developer β€” Automating AI Workflows in Insurance

    Summary

    We’re building end-to-end automation for AI tasks in the insurance sector. Over the next 10 months, we’ll be prototyping before launching a dedicated spinout. You’ll work closely with our Senior AI CTO (30+ years of combined AI experience across the team) in a fast-paced but supportive environment.

    This is a full-time, remote-first role (office available in Berlin). You’ll be expected to make strong use of AI tools to accelerate development and β€” even more importantly β€” debug efficiently. Success in this role requires both technical ability and a willingness to dive into the business logic of how insurance actually works.

    What You’ll Do

    • Develop and maintain backend services in TypeScript, using frameworks like Mastra, AWS Lambda, and Next.js
    • Prototype and ship features that automate complex insurance processes
    • Work with the CTO on model integration (potentially fine-tuning later in the roadmap)
    • Debug and optimize workflows using AI tools for rapid iteration
    • Build a deep understanding of insurance workflows to translate domain needs into technical solutions

    What We’re Looking For

    • Strong experience with TypeScript and modern frameworks (Next.js, serverless/Lambda)
    • Ability to quickly learn and apply new tools like Mastra for workflow automation
    • Comfort using AI coding assistants β€” not just to write code, but to debug effectively
    • Curiosity to understand business logic in insurance and apply it to product design
    • Availability for full-time commitment in a distributed, remote-first team (EU time zones preferred)
    • Fluency in English or German

    Nice to Have

    • Experience with AI model integration or fine-tuning
    • Background in automation, workflow orchestration, or backend-heavy applications
    • Previous exposure to insurance, fintech, or other regulated industries
    • Open-source contributions (any scale β€” show us what you’ve built!)
    • If you speak German, it would be much easier to integrate into the team. 
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  • Β· 39 views Β· 13 applications Β· 4d

    Business Development Manager (Fintech)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 2 years of experience Β· English - None
    Location: Remote Format: Full-time Experience: 2+ years in business development in the fintech sector Key Responsibilities: Proactively search for and attract new B2B clients. Conduct negotiations, deliver presentations, and defend commercial...

    πŸ“Location: Remote πŸ“… 
    Format: Full-timeπŸ’Ό 
    Experience: 2+ years in business development in the fintech sector🎯

    Key Responsibilities:

    • Proactively search for and attract new B2B clients.
    • Conduct negotiations, deliver presentations, and defend commercial proposals.
    • Build and maintain long-term partnerships.
    • Collaborate with product and technical teams to develop client-specific solutions.
    • Analyze market trends and competitors to identify new growth opportunities.
    • Represent the company at industry events, exhibitions, and conferences.
       

    βœ… Who We’re Looking For:

    • 2+ years of experience in fintech, SaaS, or banking.
    • Solid understanding of financial products, payment infrastructure, acquiring, etc.
    • Proven track record in B2B client acquisition.
    • Excellent communication, negotiation, and presentation skills.
    • Experience working with CRM systems.
    • English proficiency at Upper-Intermediate or higher is a strong advantage.
       

    πŸ’‘ Nice to Have:

    • Strong network in fintech or banking.
    • Experience working with financial or payment institutions.
    • Participation in launching or implementing new products/services.
       

    🎁 What We Offer:

    • Competitive salary + performance-based bonus system.
    • Opportunity to influence product development and business processes.
    • Work with a professional team and cutting-edge fintech products.
    • Flexible working hours and remote-friendly culture.
    • Corporate training and participation in industry events.
    • Paid vacation and sick leave.
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  • Β· 41 views Β· 17 applications Β· 7d

    Key Account Manager (Fintech)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 2 years of experience Β· English - None
    Location: Remote Format: Full-time Experience: 2+ years in B2B account management within fintech or related industries Key Responsibilities: Build and nurture long-term relationships with key B2B clients. End-to-end account management:...

    πŸ“ Location: Remote
    πŸ“… Format: Full-time
    πŸ’Ό Experience: 2+ years in B2B account management within fintech or related industries
     

    🎯 Key Responsibilities:

    • Build and nurture long-term relationships with key B2B clients.
    • End-to-end account management: onboarding, support, and ongoing engagement.
    • Identify client needs and offer tailored fintech solutions based on our product portfolio.
    • Coordinate with internal teams (product, tech support, analytics) to meet client requirements.
    • Upsell and cross-sell services to existing clients.
    • Monitor service quality and customer satisfaction.
    • Prepare commercial proposals, participate in negotiations, and maintain account reporting.
       

    βœ… Who We’re Looking For:

    • 2+ years of experience in a Key Account Manager / Customer Success Manager / B2B Sales role.
    • Understanding of the fintech / banking / payments industry.
    • Strong communication skills with ability to work across all client levels (including C-level).
    • Results-driven and highly responsible.
    • Experience working with CRM systems and reporting tools.
    • English proficiency β€” Upper-Intermediate or higher.

    πŸ’‘ Nice to Have:

    • Experience working with enterprise clients (banks, payment platforms, retailers, marketplaces).
    • Understanding of APIs, system integrations, and payment/financial processes.
    • Existing network in the finance.
       

    🎁 What We Offer:

    • Competitive salary + KPI-based bonuses (including client satisfaction metrics).
    • Opportunity to contribute to the growth of innovative fintech products.
    • Influence over client service processes and customer experience.
    • Flexible schedule and the ability to work remotely from anywhere.
    • Corporate training and support for professional development.
    • Paid vacation, sick leave, and equipment compensation.
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  • Β· 124 views Β· 14 applications Β· 11d

    Principal/Senior Software Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 10 years of experience Β· English - B2
    Turnitin is seeking a Principal Fullstack/Backend Engineer with a strong focus on backend development, particularly in Java and serverless architectures. This role is ideal for engineers passionate about building scalable distributed systems, data...

    Turnitin is seeking a Principal Fullstack/Backend Engineer with a strong focus on backend development, particularly in Java and serverless architectures. This role is ideal for engineers passionate about building scalable distributed systems, data modeling, and delivering high-performing, reliable software solutions for our award-winning educational platform.

    As a core contributor to our shared services team, you will play a key role in developing and enhancing the foundational systems that power both existing and new applications. This role is fully hands-on, requiring active involvement in coding, development, and implementation of technical solutions.

     

    Responsibilities: 

    • Lead and design, development, and optimization of scalable backend services using Java and serverless technologies (e.g., AWS Lambda).
    • Architect and implement RESTful APIs and event-driven systems to support high-performance, distributed applications.
    • Provide technical leadership to the team, ensuring alignment with architectural standards and best practices.
    • Contribute to the development and integration of user-facing frontend components when needed.
    • Analyze and optimize existing services to enhance performance, scalability, and cost-efficiency.
    • Collaborate with cross-functional teams, including Architects, Product Managers, and engineering leads, to deliver innovative and impactful solutions.
    • Mentor and guide junior developers, fostering a culture of continuous learning and knowledge sharing.
    • Oversee the implementation and maintenance of CI/CD pipelines to ensure efficient and reliable software delivery.
    • Maintain high standards of code quality through rigorous peer reviews, comprehensive testing, and adherence to industry best practices.
    • Create comprehensive documentation for the developed shared components, including usage guidelines and examples.

     

    Requirements:

    • Over 10 years of experience in backend development with deep proficiency in Java and extensive hands-on experience with serverless frameworks (e.g., AWS Lambda, Google Cloud Functions).
    • Solid understanding of frontend technologies, including React and Web Components, with the ability to contribute when needed.
    • Expertise in designing and managing distributed systems, ensuring scalability, and advanced data modeling techniques.
    • Demonstrated ability to lead and collaborate effectively with cross-functional teams and stakeholders across multiple locations, including distributed teams in Europe and the USA, to deliver impactful, high-quality solutions.
    • Practical expertise in cloud technologies, specifically developing serverless applications on AWS using services such as Lambda, DynamoDB, API Gateway, SNS/SQS, and EventBridge.
    • Deep understanding of software development best practices, including design patterns, test-driven development (TDD), and clean code principles.
    • Experience implementing and managing CI/CD pipelines for automated build, deployment, and testing.
    • Familiarity with modern DevOps practices and infrastructure-as-code (IaC).
    • Proven ability to conduct comprehensive system design reviews, ensuring architectural alignment, scalability, performance, and adherence to best practices.
    • Proven experience as a Tech Lead, with a strong track record of mentoring and coaching junior engineers, promoting skill development, and driving adherence to best practices to ensure team growth and technical excellence.
    • Exceptional collaboration skills, working effectively across cross-functional teams, including Product Managers, Architects, and other engineering leads.
    • Ability to communicate complex technical concepts clearly to both technical and non-technical stakeholders.
    • Strong problem-solving skills, with a track record of troubleshooting and optimizing existing systems for performance, scalability, and cost efficiency.
    • Ability to make strategic technical decisions while balancing project deadlines and business goals.

     

    • Preferred Skills:
    • Experience with frontend technologies such as React, Angular, or Web Components is a plus.
    • Familiarity with monitoring and observability tools (e.g., CloudWatch, New Relic, Datadog).
    • Knowledge of data modeling and working with both NoSQL databases.
    • Understanding of agile methodologies, including Scrum and Kanban.
    • Understanding or experience with AI/ML.
    More
  • Β· 24 views Β· 0 applications Β· 26d

    Senior Embedded Engineer

    Office Work Β· Ukraine (Kyiv) Β· Product Β· 5 years of experience Β· English - A2 Ukrainian Product πŸ‡ΊπŸ‡¦
    Ajax Systems is a full-cycle company working from idea generation and R&D to mass production and sales. We do everything: we produce physical devices (the system includes many different sensors and hubs), write firmware for them, develop the server part...

    Ajax Systems is a full-cycle company working from idea generation and R&D to mass production and sales. We do everything: we produce physical devices (the system includes many different sensors and hubs), write firmware for them, develop the server part and release mobile applications. The whole team is in one office in Kyiv, all technical and product decisions are made locally.

    Ajax already released and continuously improves Malevich OS, which is a heart of our Hub’s. Now we are looking for Embedded Engineers who are ready to make our system better with us. For us never could be enough: there are still a lot of new functionality, sensors, features to make our system even cooler.
     

    Required skills:

    • Proven experience in developing embedded real-time applications for commercial products
    • Excellent knowledge of embedded coding techniques, interfaces (e.g. SPI, I2C, UART, CAN, RS485) and subsystems
    • Strong skills in various build systems
    • Excellent knowledge of C programming language
    • Experience in debugging and validating complex embedded systems and protocol stack
    • Understanding of operating systems: embedded developers usually need experience in programming in embedded Linux or similar embedded operating systems
    • Good hands-on experience of software engineering fundamentals such as testing, continuous integration, continuous deployment, pull requests and code reviews, source control, work item/issue tracking
       

    Would be a plus:

    • Experience with STM, Realtek MCU's
    • Experience with programming RF modules and development low-energy wireless solutions.
    • Scripting languages Python, Bash
    • Commercial experience with specific real-time operating systems.
    • Leading of software engineers teams
    • Ability to multitask effectively among different projects in a fast-paced environment
    • Basic electronics: embedded engineers use oscilloscopes, logic analyzers, and multimeters for debugging
    • Experience in commercial IoT projects
       

    Responsibility zone:

    • Participate in the full embedded software life cycle: design, implementation, code reviews, documentation, testing and validation
    • Analysis and systematic problem solving for SW reported issues
    • Cooperate with electrical engineers to perform verification of new hardware from software team perspective. Review and provide feedback on the firmware specific aspects of hardware design
    • Delivery highly reliable Malevich OS releases
    • Work with high-level and technical requirements for research and development new features
    • Participate in making design decision to develop high performance and reliable embedded systems
    • Create unit and functional tests
    • Be ready to mentoring of newcomers|trainee coworkers
    • Be ready to lead a feature team of software engineers to achieve goals and challenges
       

    With us you will enjoy:

    • Working with a team of people to build the future of an industry
    • Non-trivial challenges and various range of interesting tasks
    • A flexible, friendly and collaborative work environment
    • Corporate culture based on common sense
    • Corporate English
    • Compensation for speciallized training
    • The opportunity to participate in the beta test project of Ajax security systems β€” receiving and testing new gadgets before their release.
    More
  • Β· 150 views Β· 13 applications Β· 28d

    QA Trainee

    Hybrid Remote Β· Ukraine Β· 0.5 years of experience Β· English - B2
    Position overview DataArt is a global software engineering firm and a trusted technology partner for market leaders and visionaries. Our world-class team designs and engineers data-driven, cloud-native solutions to deliver immediate and enduring...

    Position overview

     

    DataArt is a global software engineering firm and a trusted technology partner for market leaders and visionaries. Our world-class team designs and engineers data-driven, cloud-native solutions to deliver immediate and enduring business value.

    We promote a culture of radical respect, prioritizing your personal well-being as much as your expertise. We stand firmly against prejudice and inequality, valuing each of our employees equally.

    We respect the autonomy of others before all else, offering remote, onsite, and hybrid work options. Our Learning and development centers, R&D labs, and mentorship programs encourage professional growth.

    Our long-term approach to collaboration with clients and colleagues alike focuses on building partnerships that extend beyond one-off projects. We provide the ability to switch between projects and technology stacks, creating opportunities for exploration through our learning and networking systems to advance your career.

    Gain practical experience, enhance your skills, and master independent work on real IT projects.
    Demonstrate your expertise during the trial period, and if you meet the professional standards, you’ll earn the Junior QA qualificationβ€”with the opportunity to join DataArt full-time.

    Requirements

    • Basic knowledge of manual testing (types of tests, methodologies of organizing testing processes, test design techniques)
    • Basic knowledge of databases and skills working with at least one of database management systems (one of the following: MSSQL, Oracle, MySQL, PostgreSQL, etc.)
    • Good interpersonal skills
    • Excellent spoken English

    Nice to have

    • Practical and/or theoretical knowledge of API and mobile testing
    More
  • Β· 7 views Β· 0 applications Β· 6d

    Autonomous Systems Control Engineer

    Hybrid Remote Β· Worldwide Β· Product Β· 3 years of experience Β· English - None MilTech πŸͺ–
    We are looking for an Autonomous systems engineer with a background in physics, control theory and mathematical modelling. The ideal candidate will have a strong math background, experience with autonomous systems, modelling and control design. We...

    We are looking for an Autonomous systems engineer with a background in physics, control theory and mathematical modelling. The ideal candidate will have a strong math background, experience with autonomous systems, modelling and control design.

    We consider engineers at Middle and Senior levels - tasks and responsibilities will be adjusted accordingly. 
    Required Qualifications:
    β€’ 3+ years in R&D software development 
    β€’ Mathematical modelling, system identification and control 
    β€’ Matlab/Simulink 
    β€’ Signal processing 
    β€’ Experience with C++ , Python 
    β€’ Ability to quickly navigate through recent research and trends in control theory and autonomous systems. 
    Nice to Have: 
    β€’ Aerodynamics fundamentals 
    β€’ Machine Learning 
    β€’ Simulation tools (Gazebo, AirSim) 
    β€’ SITL, HITL testing 
    β€’ PX4, Betaflight, ArduPilot

    More
  • Β· 70 views Β· 6 applications Β· 14d

    Senior Full Stack Engineer to $6000

    Ukraine Β· Product Β· 5 years of experience Β· English - None
    Open Role We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project! The position is open to...

    Open Role

    We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project!

     

    The position is open to candidates based in Lviv and can be performed either remotely or from our office.

     

    Responsibilities

    • Implement new APIs and extend existing ones.
    • Integrate with third-party providers, including payment and gambling services.
    • Develop new features using React/Redux for customer-facing applications.
    • Design and implement architecture collaboratively with the team.
    • Identify system improvements and implement them.
    • Enhance test coverage and CI/CD pipelines.
    • Adopt innovative technologies and tools to improve the platform.
    • Migrate old React app to Next JS
    • Migrate task based backend service to event based architecture on top of Kafka

     

    Requirements

    • Experience: Minimum 5 years of web development experience.
    • Frontend: Proficiency in React.js, Redux, Next.js.
    • Backend: Strong experience with Node.js, NestJS.
    • Database: MongoDB, Redis.
    • Messaging: Kafka, WebSockets.
    • Testing: Experience with Jest, React Testing Library, Playwright framework for UI and API automation.
    • DevOps: Familiarity with Docker, Cloudflare, Nginx, PM2, New Relic.
    • Authentication: JWT, Customer.io.
    • Version Control: Git, GitHub, GitHub Actions.
    • CI/CD: Familiarity with CI/CD tools and practices (GitHub pipelines preferred).
    • Smart Contracts: Previous experience with developing smart contracts is a plus.
    • Education: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
    • Skills: Excellent problem-solving and analytical skills, strong communication and collaboration abilities.

     

    Our Benefits

    • Flexible working hours & remote job options.
    • Office facilities in Lviv.
    • Paid vacation and sick leave.
    • Fun and friendly team environment.
    • Opportunities for personal and professional growth.
    • Up to 100% reimbursement for participation in core courses and conferences.
    • Salary bonuses.

     

     

    Why Join Us?

    If you are looking for a proactive, smart, and experienced team working on innovative and extraordinary projects, we welcome you to join us!

    Our company is driven by a desire to constantly grow, develop, and learn new things. We dare to think bigger to drive you to bigger results.

    More
  • Β· 104 views Β· 16 applications Β· 14d

    Middle Full Stack Engineer to $4500

    Ukraine Β· Product Β· 5 years of experience Β· English - None
    Open Role We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project! The position is open to...

    Open Role

    We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project!

     

    The position is open to candidates based in Lviv and can be performed either remotely or from our office.

     

    Responsibilities

    • Implement new APIs and extend existing ones.
    • Integrate with third-party providers, including payment and gambling services.
    • Develop new features using React/Redux for customer-facing applications.
    • Design and implement architecture collaboratively with the team.
    • Identify system improvements and implement them.
    • Enhance test coverage and CI/CD pipelines.
    • Adopt innovative technologies and tools to improve the platform.
    • Migrate old React app to Next JS
    • Migrate task based backend service to event based architecture on top of Kafka

     

    Requirements

    • Experience: Minimum 5 years of web development experience.
    • Frontend: Proficiency in React.js, Redux, Next.js.
    • Backend: Strong experience with Node.js, NestJS.
    • Database: MongoDB, Redis.
    • Messaging: Kafka, WebSockets.
    • Testing: Experience with Jest, React Testing Library, Playwright framework for UI and API automation.
    • DevOps: Familiarity with Docker, Cloudflare, Nginx, PM2, New Relic.
    • Authentication: JWT, Customer.io.
    • Version Control: Git, GitHub, GitHub Actions.
    • CI/CD: Familiarity with CI/CD tools and practices (GitHub pipelines preferred).
    • Smart Contracts: Previous experience with developing smart contracts is a plus.
    • Education: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
    • Skills: Excellent problem-solving and analytical skills, strong communication and collaboration abilities.

     

    Our Benefits

    • Flexible working hours & remote job options.
    • Office facilities in Lviv.
    • Paid vacation and sick leave.
    • Fun and friendly team environment.
    • Opportunities for personal and professional growth.
    • Up to 100% reimbursement for participation in core courses and conferences.
    • Salary bonuses.

     

     

    Why Join Us?

    If you are looking for a proactive, smart, and experienced team working on innovative and extraordinary projects, we welcome you to join us!

    Our company is driven by a desire to constantly grow, develop, and learn new things. We dare to think bigger to drive you to bigger results.

    More
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