Jobs at Djinni
9502-
· 79 views · 13 applications · 8d
Middle Ruby on Rails developer
Full Remote · Ukraine · 3 years of experience · B2 - Upper IntermediateRole overview We are seeking a Middle Ruby Developer to join our team. The ideal candidate should have at least 2 years of experience with Ruby, strong knowledge of SQL, awareness of PostgreSQL’s dialect specifics. In addition, a good understanding of...Role overview
We are seeking a Middle Ruby Developer to join our team. The ideal candidate should have at least 2 years of experience with Ruby, strong knowledge of SQL, awareness of PostgreSQL’s dialect specifics. In addition, a good understanding of JavaScript, particularly Vue.js, is necessary, as well as proficiency in HTML, CSS, and responsive design.
Required skills- 2-5 years of experience with Ruby for building and maintaining web applications.
- Experience in designing DB structure, creating complex SQL queries with PostgreSQL specifics, transactions isolation.
- Good knowledge of JavaScript and hands-on experience with Vue.js.
- Proficiency in HTML, CSS, and responsive design principles.
- Familiarity with Docker, Heroku, and CI/CD processes (GitHub actions).
- Basic knowledge of multi-threading in Ruby.
- Knowledge of typical web app security vulnerabilities and protection technics.
- Upper-Intermediate level of English
As a plus
- Experience working with the aforementioned third-party services.
- Familiarity with web performance optimization techniques and best practices.
- Experience integrating with services like Stripe, Mailgun, SendGrid, Firebase, and Apple Push Notification Service.
Key responsibilities
- Build and maintain web applications using Ruby and PostgreSQL.
- Create responsive and interactive user interfaces with JavaScript, Vue.js, HTML, and CSS.
- Manage deployments using Docker, Heroku, and CI/CD pipelines.
- Ensure application security and maintain high-quality code standards.
- Integrate third-party services like Stripe, Mailgun, and Firebase.
Communicate effectively and contribute to team efforts.
We offer
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● Flexible working hours
● Fair salary (regular performance-based salary reviews)
● Bookkeeping and accounting on us
● No time trackers — ability to do quality work
● Approachable management, open to suggestions and innovations
● Friendly team and enjoyable working environment -
· 87 views · 13 applications · 8d
Sr. Business Analyst/Product Owner
Full Remote · Ukraine · 5 years of experience · B2 - Upper IntermediateJob Description Experience Expectations: - 5+ Years Must-Have: - Performed BA/ Proxy PO roles for multiple years, experience in Medical Domain is a plus Qualification: Engineering Graduate Take the lead and client facing role. Providing vision and...Job Description
Experience Expectations: - 5+ Years
Must-Have: - Performed BA/ Proxy PO roles for multiple years, experience in Medical Domain is a plus
Qualification: Engineering Graduate
Take the lead and client facing role.
Providing vision and direction to the Agile development team and stakeholders throughout the project and create requirements
Ensure that the team always has an adequate amount of prior prepared tasks to work on.
Plan and prioritize product feature backlog and development for the product
Define product vision, road-map and growth opportunities
Assess value, develop cases, and prioritize stories, epics and themes to ensure work focuses on those with maximum value that are aligned with product strategy
Efficiently conducts agile ceremonies involving client stakeholders.
Provide backlog management, iteration planning, and elaboration of the user stories
Work closely with Customer Product Management to create and maintain a product backlog according to business value or ROI
Lead the planning product release plans and set expectation for delivery of new functionalities
Provide an active role in mitigating impediments impacting successful team completion of Release/Sprint Goals
Follow our competitors and the industry
Keep abreast with Agile/Scrum best practices and new trends
Job Responsibilities
Responsible for developing and owning all documentation capturing business and functional requirements
Collaborate with cross-functional teams to design and propose business solutions
Engage with the client to understand/develop/articulate business requirements
Develop business and functional product knowledge and expertise for engaged clients to complement product engineering and design
Engage with the client to influence and steer decision-related to Product Strategy/Design based on market and customer requirements
Collaborate with internal teams to develop product based on industry trends and customer needs
Department/Project Description
Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.
At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities.
As additional there are opportunities to work with medical devices, in scope of end-to-end testing.
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· 76 views · 12 applications · 8d
Аccount Manager (iGaming)
Full Remote · Worldwide · Product · 2 years of experience · B1 - IntermediateRISK inc: An International iGaming Company Pushing the Boundaries of Entertainment Who We Are: An international iGaming company specializing in identifying and fostering the growth of high-potential entertainment markets. With 800+ professionals in 20+...RISK inc: An International iGaming Company Pushing the Boundaries of Entertainment
Who We Are:
An international iGaming company specializing in identifying and fostering the growth of high-potential entertainment markets. With 800+ professionals in 20+ locations, we operate in 10 countries, serving over 300,000 customers.
Always Pushing the Boundaries? You Already Belong at RISK!
Our global-scale operations are based on strong internal expertise, analytics, and data research. We have expertise in iGaming operations (sports betting, online casino), digital and affiliate marketing, tech solutions, and data analytics.
We are looking for an Аccount Manager to join our team.
Qualifications
- 3+ years of experience as an Account Manager in affiliate marketing or arbitrage teams.
- Established contact network within affiliate space (Tier 1–3).
- Practical experience with Binom tracker; technical integration skills are a strong plus.
- Strong negotiation and relationship management skills.
Job Description
- Develop and expand partnerships with affiliate networks and direct advertisers.
- Manage day-to-day communication with external partners, present collaboration opportunities, and negotiate deals.
- Oversee traffic delivery (mainly Facebook) and ensure performance expectations are met.
- Work with Binom tracker to manage campaigns; ability to integrate new products is a big advantage.
- Analyze campaign performance, prepare reports, and suggest improvements.
- Maintain strong relationships across Tier 1–3 partners, with a focus on Tier 2–3 markets.
Our Benefit Cafeteria:
- Children Allowance
- Mental Health Support
- Sport Activities
- Language Courses
- Automotive Services
- Veterinary Services
- Home Office Setup Assistance
- Dental Services
- Books and Stationery
- Training Compensation
- And yes, even Massage!
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· 210 views · 56 applications · 8d
Front End Developer (Vue.js 3+, Nuxt.js) to $1800
Full Remote · Countries of Europe or Ukraine · 2 years of experience · B1 - IntermediateWe are looking for a Front-end Developer who will be focused on working on one large project in a team of 10+ people. Responsibilities: Creating products logic following the best practices of the domain development, and also taking into account user...We are looking for a Front-end Developer who will be focused on working on one large project in a team of 10+ people.
Responsibilities:
- Creating products logic following the best practices of the domain development, and also taking into account user needs and product domain context;
- Studying user needs and suggesting implementation ways that will work the best;
- Deepening and evaluating product increment requirements in collaboration with a cross-functional squad including tech and proxy product owners;
- Coming up with new initiatives within your area to improve performance;
- Taking a part in implementing, maintaining, and improving existing products.
Requirements:
- 2+ years experience with Vue.js (version 3) & Nuxt.js;
- Strong knowledge and experience with HTML5, CSS3;
- Experience with Laravel or the desire to learn would be a plus, as the position allows growth into a full-stack position.
- Strong knowledge of Design Patterns;
- Experience in working in a product-focused team;
- English (Intermediate and higher);
- Scrum process & Agile approach understanding;
- Proactive position and desire to suggest new ideas.
Expectations:
- High level of efficiency and productivity, proactive approach;
- On-time delivery of projects/tasks and positive feedback from clients/squad;
- Technical and personal growth.
We offer:
- Regular result-based salary reviews;
- Comfortable working hours (10-19 Kyiv time zone);
- Bonus system;
- Established product-focused environment;
- Range of tasks, from quick and simple to challenging investigation to run;
- Cheerful & dynamic environment;
- Friendly and open-minded team;
- Virtual workspace with perspective to move into one of the offices;
- Mentorship;
- Attractive social package (unlimited and paid sick days, fully paid vacation, birthday day off, etc;)
- Sport and English classes discounts.
Hiring steps:
- First interview with the Recruiter;
- Technical interview with the Squad Lead (will partly involve leetcode format (small practical solution and discussion));
- Job Offer.
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· 42 views · 0 applications · 8d
Motion Designer
Hybrid Remote · Ukraine (Kyiv) · 2 years of experienceResponsibilities Creating animated videos for promotions, social media, platforms, and partner ads; Editing videos for Telegram, X, YouTube, Instagram, and websites (various formats: short videos, teasers, trailers, interface demonstrations); Working with...Responsibilities
- Creating animated videos for promotions, social media, platforms, and partner ads;
- Editing videos for Telegram, X, YouTube, Instagram, and websites (various formats: short videos, teasers, trailers, interface demonstrations);
- Working with branded templates and creating new visual formats;
- Participation in the development of video content for presenting updates, partnerships, news;
- Working with scripts, texts, and music for videos;
- Working with a team of designers, marketers, and community managers.
Requirements - At least 1 year of commercial experience in motion design;
- A portfolio with projects in the field of Web3, cryptocurrencies, or games is a big plus;
- Independence and speed in performing tasks;
- Ability to adapt style to the tone of the brand's voice;
Creativity in visual storytelling;
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· 33 views · 4 applications · 8d
Head of Product
Full Remote · Countries of Europe or Ukraine · 5 years of experience · B2 - Upper IntermediateWe are looking for an ambitious and experienced Head of Product to join our team and lead the strategic development of products in the iGaming industry for both B2B and B2C markets. As the Head of Product, you will be responsible for driving the strategic...We are looking for an ambitious and experienced Head of Product to join our team and lead the strategic development of products in the iGaming industry for both B2B and B2C markets. As the Head of Product, you will be responsible for driving the strategic development and execution of our products, from analyzing current solutions to implementing innovative technologies.
Your Role:
- Create and implement a product strategy that ensures market leadership in iGaming.
- Develop a strategic roadmap for our products and teams.
- Continuously improve existing products and develop new ones, focusing on customer needs (B2B and B2C).
- Conduct in-depth market and competitor analysis to make informed decisions about new features and improvements.
- Establish KPIs and effective data collection and analysis processes to measure product success.
- Optimize engagement, retention, and revenue metrics for B2C products and B2B solution effectiveness.
You’re the right fit if you:
- Have at least 5 years of experience in product management in iGaming.
- Have already managed product teams for at least 3 years in iGaming and possess strong leadership skills.
- Can create game-changing strategies.
- Understand the iGaming market and know how to develop products that disrupt the industry.
- Are familiar with working with metrics and optimizing products for the best results.
Perks:
- You’ll be part of an ambitious team building innovative products for market leaders.
- High level of financial motivation and opportunities for professional growth.
Ideal Candidate:
- Has experience launching and scaling products in the online casino industry, ideally on a custom platform.
- Has experience creating deposit bonus mechanisms.
Interview process:
- HR-Interview;
- Tech-Interview;
- Interview with CEO;
- Recommendation.
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· 108 views · 23 applications · 8d
Middle, Senior Backend Engineer (Node.js, Ruby on Rails) to $4000
Full Remote · Worldwide · 5 years of experience · B1 - IntermediateCompany: Presidio(https://presidiodev.com/) Location: Office/ Remote/ Flexible Employment type: Full-time About Us At Presidio, we build modern, scalable, and reliable digital solutions for global clients. Our team values technical excellence, clean...- Company: Presidio(https://presidiodev.com/)
- Location: Office/ Remote/ Flexible
- Employment type: Full-time
About UsAt Presidio, we build modern, scalable, and reliable digital solutions for global clients. Our team values technical excellence, clean code, and continuous improvement, while maintaining a collaborative and supportive work culture.
We are currently looking for an experienced Backend Engineer (Middle or Senior) who is passionate about building robust backend systems and thrives in an environment where innovation and problem-solving are highly encouraged.
Responsibilities- Design, develop, and maintain backend services and APIs.
- Work with Node.js and Ruby on Rails in production-grade systems.
- Collaborate with frontend developers, DevOps, and product managers to deliver high-quality solutions.
- Optimize application performance, scalability, and security.
- Write clean, maintainable, and well-documented code.
- Participate in code reviews and knowledge sharing within the team.
Requirements- 5+ years of professional backend development experience.
- Strong knowledge of Node.js and Ruby on Rails.
- Experience with REST APIs, GraphQL, and microservices architecture.
- Solid understanding of relational databases (PostgreSQL, MySQL) and ORMs.
- Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).
- Good knowledge of testing frameworks (RSpec, Jest, etc.).
- Strong problem-solving skills and attention to detail.
- Intermediate or higher level of English (for communication with international team).
Nice to Have- Shopify API, Shopify Apps development.
- Experience working with AI models.
- Experience with CI/CD pipelines.
- Knowledge of caching strategies (Redis, Memcached).
- Contributions to open-source projects.
What We Offer- Competitive salary based on experience and skills.
- Remote-first work culture with flexible hours.
- Opportunity to work on international projects with modern tech stack.
- Supportive team, mentorship, and room for professional growth.
- Paid vacation, sick leave, and official holidays.
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· 170 views · 19 applications · 8d
Junior Project Manager
Full Remote · Poland · 1.5 years of experience · B2 - Upper IntermediateCUSTOMER Our client is a Netherlands-based company on a mission to lead a transformative shift in the global clothing industry. Their vision is to create a sustainable and socially responsible sector by making garment repair not only ethical but a...CUSTOMER
Our client is a Netherlands-based company on a mission to lead a transformative shift in the global clothing industry. Their vision is to create a sustainable and socially responsible sector by making garment repair not only ethical but a standard practice, contributing to a more responsible and repaired world.
PROJECT
The platform has two main branches:
- B2B: Collaboration with brands and partners
- B2C: An internal tracking system covering all product-related operations.
The project tech stack will be Microsoft Power Platform and React.
RESPONSIBILITIES
- Plan, manage, and monitor project execution
- Control KPIs and take action to maintain them at the best level
- Handle people management: actively participate in planning required hires, ensure the professional growth of your team, and conduct face-to-face meetings
- Act as a Scrum Master: facilitate Scrum meetings and ensure feature delivery
- Develop project status reports and presentations
- Drive and support continuous project improvement
- Develop, manage, and maintain actual project management documentation
Manage communication with the Customer, Product Owner, customer side teams to ensure Customer satisfaction
REQUIREMENTS
- Good theoretical and practical background in project management
- At least 1,5 years of commercial experience as a Project Manager
- Practical experience of working with Agile methodologies
- Experience of people management practices, including coaching and mentoring, team and conflict management, team motivation, and team building
Upper-Intermediate level of spoken and written English
PERSONAL PROFILE
- High level of self-organization and attention to detail
- Excellent prioritization and time management skills
Strong communication and presentation skills
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· 19 views · 4 applications · 8d
Billing Manager
Full Remote · Countries of Europe or Ukraine · 3 years of experienceOur startup is a sweepstakes casino platform focused on the US market. We strive to provide users with a unique gaming experience by combining gambling with interactive features and modern technologies. The product is an online slots casino where users...Our startup is a sweepstakes casino platform focused on the US market. We strive to provide users with a unique gaming experience by combining gambling with interactive features and modern technologies.
The product is an online slots casino where users can participate in prize draws, play a variety of games, and win real rewards. Our platform is built based on advanced technologies and complies with all US laws.
Requirements:- Proven experience in payment operations within the iGaming or betting industry.
- Established network of contacts with payment providers in the U.S. gambling market.
- Strong analytical and problem-solving skills.
- Solid understanding of various payment systems, methods, and currencies.
- Bachelor’s degree in Finance, Accounting, or a related field.
Responsibilities: - Analyze billing data to identify trends, forecast needs, and drive process improvements.
- Maintain regular communication with payment providers to address any issues or changes in available payment methods.
- Lead the billing strategy, ensuring smooth operations and compliance with industry standards.
- Research and onboard new payment providers, including negotiating integration terms.
- Collaborate with finance and customer service teams to optimize workflows and quickly resolve billing-related issues.
What do we offer:
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— Challenging tasks that contribute to professional and personal growth;
— Competitive salary depending on experience and skills.
Interview process:
— HR-Interview;
— Tech-Interview;
— Interview with CEO;
— Recommendation. -
· 191 views · 58 applications · 8d
Freelance Laravel Developer
Part-time · Full Remote · Ukraine · 2 years of experience · B2 - Upper IntermediateDarly Solutions is looking for a PHP Developer (Laravel) to join our team on a part-time basis. Skills required: Experience with PHP 7.x, 8.x; Using Laravel 8-12 for designing and creating web apps and services; Knowledge of Redis; Experience with SQL...Darly Solutions is looking for a PHP Developer (Laravel) to join our team on a part-time basis.
Skills required:
- Experience with PHP 7.x, 8.x;
- Using Laravel 8-12 for designing and creating web apps and services;
- Knowledge of Redis;
- Experience with SQL databases (mysql, mariaDB, PostgreSQL);
- Knowledge and understanding of database design;
- Experience with Version Control System - Git;
- Dependency Manager - Composer;
- Knowledge of Docker;
- Understanding of OOP principles, KISS, DRY, SOLID;
- Adherence to PSR 1,2,12 standards.
Responsibilities:
- Build efficient, testable, and reusable PHP сodebase;
- Build back-end components, connect the app to other web services, and assist front-end developers;
- Create and integrate APIs;
- Provide technical advice and expertise.
The below would be considered an advantage:
- Experience working with AI tools - Claude;
- Experience supporting AI solutions - e.g Lovable, bolt.new;
- Experience with Filament, Stripe, Laravel Cashier.
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· 33 views · 8 applications · 8d
Sales Manager
Full Remote · Ukraine · B2 - Upper IntermediateWe are looking for an Assistant Sales Manager to join our growing team in Ukraine. DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, etc. With years of experience in web and...We are looking for an Assistant Sales Manager to join our growing team in Ukraine.
DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, etc.
With years of experience in web and mobile development, UI/UX design, Quality Assurance, AI, and machine learning, we pride ourselves on creating impactful products that drive success for our clients.
Since 2018, we have successfully completed over 250 projects.
Examples of our work across various domains can be found on our website - https://www.darly.solutions/
We leverage cutting-edge technologies to craft powerful, forward-thinking solutions tailored to our clients’ needs.
Our team is proficient in a diverse range of tools, including Angular, NestJS, React, Vue, PHP, Ruby, NodeJS, and many others.Requirements:
- Experience in B2B sales lead generation, or completion of relevant courses;
- Proficiency in written and spoken English (B2+);
- Experience with CRM (Pipedrive, HubSpot, Odoo, or similar);
- Understanding of the IT market, basic development terms;
- Analytical mindset and a proactive attitude;
- High self-organization and ability to multitask.
Key responsibilities:
- Support the Sales Manager with daily tasks such as planning, updating the CRM, preparing for calls, and reporting;
- Handle initial communication with leads via LinkedIn, email, and Upwork;
- Participate in qualification calls with potential clients;
- Maintain communication throughout the sales funnel;
- Analyze the effectiveness of outreach and Upwork strategies and suggest improvements;
- Coordinate with marketing to improve the inbound flow;
- Gradually take on more responsibility and grow to become a Sales Manager.
Nice to have:
- Experience with Upwork, Clutch or LinkedIn outreach;
- Experience in closing deals or preparing commercial proposals;
Understanding of outstaffing/outsourcing business models.
We offer:
- Flexible work format - remote, 8-hour working day without time trackers;
- Competitive salary;
- Tight-knit and friendly team;
- Personalized career growth;
- Up to 50% coverage of the cost of professional courses;
- Vacation time, sick-leaves, national holidays ;
- Competitive bonuses for a personal recommendation of new employees;
- Professional development tools (mentorship program, tech talks and workshops);
- English classes with a teacher;
- Corporate events and team buildings.
If you have what we are looking for and would love to join our Darly team, we want to hear from you!
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· 844 views · 299 applications · 8d
QA Tester for Shopify Projects
Part-time · Full Remote · Countries of Europe or Ukraine · 3 years of experience · B2 - Upper IntermediateType: Hourly Contract (Up to 20 hours per month) About the Project: We are a team specializing in Shopify design and development, creating custom e-commerce solutions for our clients. We're looking for a detail-oriented QA Tester to join us on a...Type: Hourly Contract (Up to 20 hours per month)
About the Project: We are a team specializing in Shopify design and development, creating custom e-commerce solutions for our clients. We're looking for a detail-oriented QA Tester to join us on a part-time basis to ensure the quality of our major releases.
Responsibilities:
- Perform thorough testing on major Shopify releases, including functionality, usability, and compatibility across devices and browsers.
- Identify, document, and report bugs, glitches, and inconsistencies in design and development.
- Collaborate with our development team to verify fixes and re-test as needed.
- Ensure the project meets high standards for performance, security, and user experience in an e-commerce environment.
Requirements:
- Proven experience in QA testing, preferably with Shopify or similar e-commerce platforms.
- Strong understanding of web development, including HTML, CSS, JavaScript, and responsive design.
- Familiarity with testing tools (e.g., BrowserStack, Selenium, or manual testing methodologies).
- Excellent attention to detail and problem-solving skills.
- Ability to work independently and meet deadlines for periodic releases.
- Availability for up to 20 hours per month, flexible scheduling around major releases.
Compensation: Competitive hourly rate (commensurate with experience).
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· 43 views · 13 applications · 8d
UI/UX Designer
Full Remote · Ukraine · 2 years of experience · B2 - Upper IntermediateWe are looking for a Middle UX/UI Designer to join our growing team. DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, etc. With years of experience in web and mobile...We are looking for a Middle UX/UI Designer to join our growing team.
DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, etc.
With years of experience in web and mobile development, UI/UX design, Quality Assurance, AI, and machine learning, we pride ourselves on creating impactful products that drive success for our clients.Since 2018,
we have successfully completed over 250 projects.
Examples of our work across various domains can be found on our website
- https://www.darly.solutions/
We leverage cutting-edge technologies to craft powerful, forward-thinking solutions tailored to our clients’ needs. Our team is proficient in a diverse range of tools, including Angular, NestJS, React, Vue, PHP, Ruby, NodeJS, and many others.
Your skills & qualifications:
- At least 3 years of commercial experience in UI/UX design;
- B2/C1 level of English;
- Proficiency in Figma, Adobe Illustrator, Adobe Photoshop;
- Portfolio with at least 3 examples of UI/UX projects done by you;
- Deep understanding of the basic design principles and the ability to apply them;
- Ability to produce fresh and aesthetically pleasing UI design beyond current trends and typical solutions;
- Creativity, good taste, an eye for detail;
- Empathy, open-mindedness, flexibility, desire to learn, willingness to be a part of the team;
- Solid grasp of UX principles and best UX practices;
- Understanding of psychology and basic marketing principles;
- Ability to clearly articulate your ideas and solutions to the team;
- Ability to present your work to a customer and justify your solutions.
Your key accountabilities and responsibilities will include:
- Close communication with customers and clarification of requirements;
- Delivery of UI designs in Figma;
- Creation of custom icons;
- Designing various promotional assets such as banners, social media covers, etc;
- Close collaboration with the team Lead Designer, QA, PM, Developers).
- Wireframing and prototyping; delivery of low- and mid-fidelity wireframes, and interactive prototypes.
We offer:
- Flexible work format - remote, 8-hour working day without time trackers;
- Competitive salary;
- Tight-knit and friendly team;
- Personalized career growth;
- Up to 50% coverage of the cost of professional courses;
- Vacation time, sick-leaves, national holidays ;
- Competitive bonuses for a personal recommendation of new employees;
- Professional development tools (mentorship program, tech talks and workshops);
- English classes with a teacher;
- Corporate events and team buildings.
If you have what we are looking for and would love to join our Darly team, we want to hear from you!
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· 25 views · 0 applications · 8d
Senior/Middle Data Scientist
Full Remote · Ukraine · Product · 3 years of experience · B1 - IntermediateAbout us: Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently...About us:
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Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.
About the client:
Our client is an IT company that develops technological solutions and products to help companies reach their full potential and meet the needs of their users. The team comprises over 600 specialists in IT and Digital, with solid expertise in various technology stacks necessary for creating complex solutions.
About the role:
We are looking for an experienced Senior/Middle Data Scientist with a passion for Large Language Models (LLMs) and cutting-edge AI research. In this role, you will focus on designing and prototyping data preparation pipelines, collaborating closely with data engineers to transform your prototypes into scalable production pipelines, and actively developing model training pipelines with other talented data scientists. Your work will directly shape the quality and capabilities of the models by ensuring we feed them the highest-quality, most relevant data possible.
Requirements:
Education & Experience:
- 3+ years of experience in Data Science or Machine Learning, preferably with a focus on NLP.
- Proven experience in data preprocessing, cleaning, and feature engineering for large-scale datasets of unstructured data (text, code, documents, etc.).
- Advanced degree (Master’s or PhD) in Computer Science, Computational Linguistics, Machine Learning, or a related field is highly preferred.
NLP Expertise:
- Good knowledge of natural language processing techniques and algorithms.
- Hands-on experience with modern NLP approaches, including embedding models, semantic search, text classification, sequence tagging (NER), transformers/LLMs, RAGs.
- Familiarity with LLM training and fine-tuning techniques.
ML & Programming Skills:
- Proficiency in Python and common data science and NLP libraries (pandas, NumPy, scikit-learn, spaCy, NLTK, langdetect, fasttext).
- Strong experience with deep learning frameworks such as PyTorch or TensorFlow for building NLP models.
- Ability to write efficient, clean code and debug complex model issues.
Data & Analytics:
- Solid understanding of data analytics and statistics.
- Experience in experimental design, A/B testing, and statistical hypothesis testing to evaluate model performance.
- Comfortable working with large datasets, writing complex SQL queries, and using data visualization to inform decisions.
Deployment & Tools:
- Experience deploying machine learning models in production (e.g., using REST APIs or batch pipelines) and integrating with real-world applications.
- Familiarity with MLOps concepts and tools (version control for models/data, CI/CD for ML).
- Experience with cloud platforms (AWS, GCP, or Azure) and big data technologies (Spark, Hadoop, Ray, Dask) for scaling data processing or model training.
Communication & Personality:
- Experience working in a collaborative, cross-functional environment.
- Strong communication skills to convey complex ML results to non-technical stakeholders and to document methodologies clearly.
- Ability to rapidly prototype and iterate on ideas
Nice to have:
Advanced NLP/ML Techniques:
- Familiarity with evaluation metrics for language models (perplexity, BLEU, ROUGE, etc.) and with techniques for model optimization (quantization, knowledge distillation) to improve efficiency.
- Understanding of FineWeb2 or similar processing pipelines approach.
Research & Community:
- Publications in NLP/ML conferences or contributions to open-source NLP projects.
- Active participation in the AI community or demonstrated continuous learning (e.g., Kaggle competitions, research collaborations) indicating a passion for staying at the forefront of the field.
Domain & Language Knowledge:
- Familiarity with the Ukrainian language and context.
- Understanding of cultural and linguistic nuances that could inform model training and evaluation in a Ukrainian context.
- Knowledge of Ukrainian text sources and data sets, or experience with multilingual data processing, can be an advantage given the project’s focus.
MLOps & Infrastructure:
- Hands-on experience with containerization (Docker) and orchestration (Kubernetes) for ML, as well as ML workflow tools (MLflow, Airflow).
- Experience in working alongside MLOps engineers to streamline the deployment and monitoring of NLP models.
Problem-Solving:
- Innovative mindset with the ability to approach open-ended AI problems creatively.
- Comfort in a fast-paced R&D environment where you can adapt to new challenges, propose solutions, and drive them to implementation.
Responsibilities:
- Design, prototype, and validate data preparation and transformation steps for LLM training datasets, including cleaning and normalization of text, filtering of toxic content, de-duplication, de-noising, detection and deletion of personal data, etc.
- Formation of specific SFT/RLHF datasets from existing data, including data augmentation/labeling with LLM as teacher.
- Analyze large-scale raw text, code, and multimodal data sources for quality, coverage, and relevance.
- Develop heuristics, filtering rules, and cleaning techniques to maximize training data effectiveness.
- Collaborate with data engineers to hand over prototypes for automation and scaling.
- Research and develop best practices and novel techniques in LLM training pipelines.
- Monitor and evaluate data quality impact on model performance through experiments and benchmarks.
- Research and implement best practices in large-scale dataset creation for AI/ML models.
- Document methodologies and share insights with internal teams.
The company offers:
- Competitive salary.
- Equity options in a fast-growing AI company.
- Remote-friendly work culture.
- Opportunity to shape a product at the intersection of AI and human productivity.
- Work with a passionate, senior team building cutting-edge tech for real-world business use. -
· 62 views · 4 applications · 8d
System Administrator
Office Work · Ukraine (Lviv) · 0.5 years of experience · B1 - IntermediateDevCom is looking for a responsible and proactive System Administrator to join our team! We are open to candidates who are still studying. We consider students of specialized technical universities (from the 4th year) who are available for full-time work...DevCom is looking for a responsible and proactive System Administrator to join our team! We are open to candidates who are still studying. We consider students of specialized technical universities (from the 4th year) who are available for full-time work and can support our office infrastructure. Suppose you want to grow as a System Administrator, dive into real tasks, work with modern technologies, and develop alongside an experienced team. In that case, we’d love to hear from you!
Location: Lviv
Work schedule: Mon—Fri, 09:00–18:00 or 10:00–19:00 (the schedule is coordinated).
You must be available in case of critical technical issues (rare, but possible).
Probation period: 3 months
What you need to join us:
▪ Specialized higher education or ongoing studies (from the 4th year) in IT, Computer Systems, Networking or Cybersecurity
▪ Completed specialized courses (System Administration, Cybersecurity, Networking, Windows/Linux, etc.)
▪ Understanding of networking (TCP/IP, DHCP, DNS, VPN)
▪ Hands-on experience with Windows and Linux, confident use of CLI (cmd, PowerShell, bash)
▪ Experience in installing and configuring the OS and connecting peripheral devices
▪ Understanding of cybersecurity basics and data backup principles
▪ Analytical thinking for troubleshooting and solving technical issues
▪ English — at a level sufficient to read technical documentation
Would be a plus:
▪ Experience with virtualization (VMware, Hyper-V, Proxmox), containers (Docker), and cloud services (AWS, Azure, Google Cloud)Your responsibilities will include:
▪ Assisting colleagues in resolving technical issues, analyzing problems, and finding solutions
▪ Installing and configuring operating systems (Windows, Linux) and connecting peripheral devices
▪ Supporting basic network services (TCP/IP, DHCP, DNS, VPN)
▪ Monitoring core cybersecurity aspects and data backup practicesWhat do we offer:
Salary — $500 — 700 gross (depends on the results of the interview and can be discussed)
Performance review every six months
Professional development in a team of highly qualified specialists
Dynamic and interesting work
Opportunities for career and professional development
English classes and other L&D activities like courses and certifications reimbursement
Strong mentorship, providing valuable guidance and support to grow as a skilled specialist
Recognition gifts and awards
21 working days — paid vacations
10 paid sick leaves
IT club membership
Offices equipped with generators and Starlinks
Employee referral program
Benefit program with the opportunity for compensation to cover the following expenses of their choice:
▪ Sports activities (these can be one-time sessions or monthly or annual subscriptions)
▪ Payment of medical expenses (treatment and preventive procedures at the dentist, services, and consultations with doctors, medical examinations, and tests)
▪ Psychologist consultations
▪ Medical insurance
▪ Training for the development of professional skills (hard and soft skills), including the purchase of necessary educational literature
▪ Courses in traditional arts and creativity
▪ Individual English language improvement classes
If you want to know more details, please contact us via email or send your CV through the site!
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The next step is a short interview with HR — 15 minutes
Then — a technical interview
In case of success — offer!
I organize all stages ASAP!
We highly value transparency and communication. Our recruitment process includes feedback at every stage, ensuring you are consistently informed and engaged.
Olha Melnychuk
HR Manager, DevCom