Jobs at Djinni

UVIK Software is looking for an experienced and proactive Senior Data Scientist to join our team. You will take ownership of end-to-end machine learning solutions — from exploration to deployment — and turn complex business challenges into actionable insights. This role is perfect for someone who thrives in a fast-paced, data-driven environment and wants to make real impact through intelligent systems.
 

What You’ll Do:

• Design, develop, and deploy machine learning models using structured and unstructured data
• Own the full ML lifecycle: data exploration, feature engineering, model training, evaluation, deployment, and monitoring
• Use Apache Spark (PySpark) to efficiently process large-scale datasets in distributed environments
• Collaborate with data engineers, product managers, and stakeholders to align ML models with business goals
• Perform model validation and performance tuning, ensuring reproducibility with robust pipelines
• Work in Python with libraries such as pandas, scikit-learn, NumPy, MLflow
• Use Git for version control and collaborate via code reviews and structured workflows
• Present insights, recommendations, and results clearly to both technical and non-technical audiences
• Stay up to date with AI/ML trends and assess new tools and techniques for implementation
• Document models, experiments, and workflows for clarity and future use
   

What We’re Looking For:

• 5+ years of experience in machine learning, AI, and statistical modeling
• Deep expertise in supervised, unsupervised, and ensemble learning methods
• Strong proficiency in Python for data science and machine learning
• Hands-on experience with Apache Spark / PySpark for distributed data processing
• Solid knowledge of Git and collaborative development practices
• Experience building scalable, production-grade ML pipelines and working with large datasets
• Strong problem-solving skills and solid foundations in math and statistics
• Excellent communication skills — ability to explain technical results to non-technical audiences
• Based in an EU country
   

Nice to Have

• Experience with cloud-based ML platforms like AWS SageMaker, GCP, or Azure ML

Hi there! 😊

Join Our Team as a QA Engineer!

We're looking for a sharp-eyed QA Engineer to help us raise the quality bar even higher. If you're into clean product experiences, love digging into edge cases, and have worked on crypto or Web3 projects — this one’s for you.

What You’ll Work On:

Testing Web and Mobile apps used in the crypto space
Writing and executing test plans (manual + automation, if you can)
Working closely with developers, designers, and product managers
Identifying bugs, edge cases, and UX issues before users do
Verifying API integrations, wallet flows, and smart contract interactions 

What We’d Love to See:

Strong experience with manual testing
Familiarity with crypto wallets, blockchain apps, and common Web3 tools
Comfortable writing bug reports and test cases in tools like Jira.
A curious, proactive mindset — you're not just ticking boxes.

Why Join Us?

Work on exciting, forward-thinking crypto products
Collaborate with a fun, passionate, and distributed team
Flexible schedule and remote-friendly culture

We are looking for a Creative Marketing Lead to join United Tech and take full ownership of the creative strategy behind our paid traffic performance. This role is your chance to make a direct impact on high-growth products in a highly competitive niche (US/UK/CA/AU markets), where every idea and decision truly matters. You will be responsible for developing and executing a creative marketing strategy, leading the full production process from concept to final asset, and building a strong creative team from the ground up. Expect the freedom to drive bold initiatives, make independent decisions, and influence key business results,  all in a fast-paced, bureaucracy-free environment

About the product:  We operate in the fast-growing social networking space that’s transforming how people connect online in a live-streaming segment that is growing by over 21% annually. We build products that combine streaming, video content, interactivity, and communities, with a focus on the global market. One of our flagship products is an ad-free international streaming platform where users engage in real time through video chats and live broadcasts. But that’s just part of our ecosystem, we’re also developing other products within the niche, each with its own mechanics, audience, and monetization model. Our team tackles complex analytics, AI solutions, personalization, and the scaling of high-load systems. If you’re passionate about shaping the future of social networking, we’d love to have you on board!

.    In this role, you will

• Deliver ad creative concepts and iterations that align with key KPIs for multiple products
• Support and improve the creative production pipeline in close collaboration with User Acquisition Managers
• Manage and grow the Creative Marketing team, including Designers and Creative Marketing Managers
• Plan and coordinate team workflows to ensure timely and effective output
• Track and report on the performance of creatives and team members
• Set up and maintain efficient creative marketing processes
• Develop and refine a testing methodology for ad creatives to improve performance and scalability
• Motivate the team through regular meetings, feedback sessions, and performance checkpoints

.    It’s all about you

• 1+ year of experience leading a creative marketing team of 3 or more people
• Basic understanding of User Acquisition and Performance Marketing
• Proven experience in generating and developing creative concepts
• Solid workload management and deadline adherence
• Hands-on experience with creative testing approaches
• Strong leadership and team motivation skills
• Strategic thinking with focus on achieving product KPIs
• Excellent communication and presentation skills
• English level B2+
• Team-oriented mindset and strong communication skills

      Would be a plus: 

• Experience with video chat or live-streaming products

What we offer

      Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
  
  Comfortable working environment:
• Work from our Kyiv hub or remotely with a flexible schedule 
• Workspace rental reimbursement in other cities and abroad
• Modern equipment or depreciation of your own tools
  
  Investment in your future:
• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
  
  Hiring process
• Intro call
• Technical Interview
• Test Task (optional)
• Final Interview
• Reference check
• Offer

VeliTech is a product company, where everyone is passionate about technology and strives to stay ahead of the curve. Our team is fueled by a deep understanding of cutting-edge frameworks, technologies, and continuous learning. 

This combo brought us success, 35+ million users served with our iGaming products, breakthrough Tech Radar, and a team of 200+ bright minds who made this happen. 

We invite QA Automation Team Lead to join the VeliSports product team

VeliSports is where sport meets smart technology. As part of the VeliTech ecosystem, we’re developing a sportsbook platform that gives our clients full control over their offering, from real-time odds management to automated risk handling and in-depth player insights.
Working at VeliSports means building a product that handles high traffic, complex data, and fast-changing markets. Our team is focused on making sports betting operations more efficient while giving players a smooth and engaging experience. If you enjoy solving real challenges and creating tools that make a difference, VeliSports is the place to be.


In role you will:

• Lead the QA team, providing technical guidance, mentoring, and support to ensure consistent quality practices across all projects.
• Define and continuously improve the QA strategy, including test planning, execution, automation, and quality metrics.
• Develop and maintain a test automation framework using Python, pytest, Selenium, pytest-bdd, requests, httpx, and Allure reporting.
• Actively contribute to writing, reviewing, and maintaining automated test suites to ensure test coverage and reliability.
• Implement and manage CI/CD pipelines and QA infrastructure using GitLab, Docker, and Docker Compose, or any other relevant tools.
• Collaborate with developers, product owners, and project managers to create test plans, test cases, and acceptance criteria aligned with business goals.
• Establish and enforce QA coding standards, test documentation practices, and defect management processes.
• Coordinate and prioritize testing efforts across projects, ensuring timely delivery of high-quality releases.
• Monitor and communicate testing progress, risks, and quality status to stakeholders.
• Drive performance, integration, and regression testing, utilizing tools like Selenium Grid and custom setups.
• Evaluate and integrate new tools, technologies, and processes to enhance test efficiency and maintainability.
• Manage and troubleshoot test environments and integrations between components.
• Participate in hiring and onboarding of QA team members when needed.
• Contribute to budget planning for QA resources, tools, and infrastructure.

Define and drive the team's growth plans, including skill development, training initiatives, and career pathing 


Skills and experience you will need: 

• Strong programming skills in Python (must be highly proficient).
• Proven experience with test automation tools, such as pytest and Selenium.
• Experience with CI/CD tools, such as GitLab CI/CD, Jenkins, Docker, Docker Compose, or other relevant tools.
• Knowledge of RESTful web services and load/stress testing.
• Familiarity with pytest-bdd, requests, httpx, and Allure reporting.
• Understanding of Selenium Grid and performance testing tools.
• Excellent communication and problem-solving skills.
• Ability to work collaboratively within a team and adapt to changing priorities.
• Experience leading QA teams or initiatives, including mentoring engineers and driving process improvements.
• Ability to define QA strategy, align testing efforts with business goals, and communicate progress to stakeholders.
• Comfortable participating in budget/resource planning and contributing to the growth and structure of the QA team.

Would be a plus

• Working experience in iGaming industry (especially with sports book solution provider) will be a significant advantage.
• Hands-on experience scaling QA teams and test automation frameworks in fast-paced environments.
• Experience evaluating QA tools or services (e.g. test automation platforms, performance tools) with consideration for both features and cost. Exposure to performance budgeting or vendor tool evaluation for QA solutions.

We offer:
Growth Opportunities: Expand your expertise, including launching your own product.
Modern Technology: Work with microservices, serverless architecture, and SRE practices.
Flexibility: Work remotely, in offices in Kyiv, Tbilisi, or London, or combine both.
Public holidays: Enjoy each local bank holiday with your loved ones.
Learning Opportunities: Budget for conferences, certifications, and courses.
Personal Development: Tailored plans to achieve your сareer goals.
Community: Various internal events and team-building activities.

A leading product company is looking for a Senior DBA Engineer to join their team in a hybrid format in Cyprus.

The company builds a large-scale B2C mobile live-streaming platform with over 450 million registered users. It empowers talented individuals around the world to connect with their audience and monetize their content in real time.

The company was founded in the US in 2018 and currently employs 350+ specialists globally, with tech teams across several countries including Cyprus, Israel, Poland, and Ukraine.

They offer a competitive benefits package:

• stock options,
• performance-based bonuses,
• full medical insurance for employees and partial coverage for family members,
• lunch and dinner in the office,
• Greek lessons,
• sport and wellness compensation.

Key requirements:

• experience with MySQL databases in production environments,
• knowledge of Linux OS,
• hands-on experience with cloud infrastructure, especially Google Cloud Platform (GCP).

We are looking for an experienced Data Engineer to join us in one of our projects for the pharmaceutical sector. You will be involved in building complex big data/analytics platforms, data warehouses, and data pipelines for a wide range of departments (Finance, IoT, Operations, HR, Sales Marketing etc.) for different use cases.

Your tasks

• Designing, implementing, and operating Data & Analytics solutions in a DevOps working environment
• Creating ETL/ELT processes and scalable data pipelines for the data science team & BI Team
• Managing and releasing system resources with versioning using Continuous Integration/Continuous Delivery
• Implementing relational and multidimensional data models
• Standardizing data discovery, acquisition, and harmonization processes, optimizing the data
• Ensuring compliance with all required security considerations

Requirements

• At least 5 years of experience working with the Big Data Ecosystems as Data Engineer
• Strong experience with cloud-based services and with containers (Docker, Kubernetes, Functions)
• Hands-on experience in creating and managing an enterprise-scale Data Platform, setting best practices for security, privacy, monitoring & alerting, and CI/CD
• Excellent communication skills
• Experience with BI & Master Data (Technology, Process & Governance) will be an advantage
• Good knowledge of the English language

A passionate team of game developers, engineers, and storytellers is building one of the most innovative new titles in the global gaming space. With a successful launch behind them and big ambitions ahead, they're expanding their backend team to support rapid growth. This is an exciting opportunity for a Senior Backend Engineer to contribute to the future of online gaming infrastructure and be part of a studio thats redefining how games are built and experienced.
 

Responsibilities

• Design, implement, and maintain scalable backend services in C#/.NET 8.
• Build robust and secure RESTful APIs and distributed systems to support core game features.
• Collaborate closely with gameplay engineers, DevOps, product teams, and designers to integrate backend features into the game.
• Leverage Azure cloud services to manage deployments, databases, and infrastructure as code.
• Drive performance optimizations and contribute to monitoring and reliability efforts for live operations.
• Mentor other engineers, participate in code reviews, and champion engineering best practices.

Requirements

• 5+ years of backend development experience, preferably in the gaming industry.
• Strong proficiency in C# and the .NET ecosystem, ideally with .NET 8.
• Experience building and maintaining cloud-based backend systems preferably with Azure.
• Solid understanding of distributed systems, microservices, networking, and data integrity.
• Familiarity with real-time multiplayer systems, session management, or live ops tooling.
• Experience with SQL and/or NoSQL databases.
• Passion for games and a deep understanding of what makes player experiences fun and seamless.
   

Benefits

• Competitive salary;
• Remote work model;
• Unlimited paid time off and sick leave;
• Career growth opportunities in a dynamic, rapidly growing company;
• Collaborate with a highly skilled team.

We currently have a need for a React Developer. This position is ideal for individuals who have the drive and desire to ‘make things’. It requires a highly motivated individual with attention to details and a hunger to learn and solve problems

Shifted working hours - Readiness to work till 10-11 PM Kyiv time

Job Description

• Bachelor's degree in Computer Science, Software Engineering, or a related field
• 5+ years of experience in software development using Javascript and ReactJS
• Hands-on experience with AWS services
• Hands on experience with consuming REST APIs
• Expert in Front End Security prevention such as JWT, SQL Injection, XSS, etc
• Experience working with Docker and containerization practices
• Strong problem-solving and analytical skills
• Excellent communication and collaboration abilities
• Commitment to writing clean, maintainable, and well-documented code
• Experience with microservices and building highly scalable applications is a plus

Job Responsibilities
• Design, develop, and maintain software applications using ReactJS ecosystem and Javascript
• Collaborate with cross-functional teams to gather requirements, understand business needs, and translate them into technical solutions
• Implement and integrate best in class front end solutions for video/audio playback, websockets, state management, security, responsive design, and more
• Leverage AWS primitives to build scalable and reliable applications
• Containerize applications using Docker for consistent deployment across environments
• Write clean, maintainable, and well-documented code following best practices and coding standards
• Participate in code reviews and ensure adherence to quality standards
• Troubleshoot and resolve technical issues, bugs, and performance bottlenecks
• Stay up to date with the latest trends, technologies, and industry best practices

Department/Project Description

Our customer is a global leader in digital media and entertainment services across film, video and online content from capture to consumption.

Since 1915, our customer has been the trusted partner for the world's most successful Hollywood studios, independent film companies, TV networks, exhibitors, advertisers and others, offering best-in-class solutions in production, post production, distribution, asset and workflow management and new digital solution-based technologies.

We are appflame, a product IT company. We create life-changing products that break the rules of the game in the category. Geographically, we are located in Ukraine, but in reality – all over the world.

You will:

• Develop and maintain backend services using NestJS and TypeScript.
• Implement and optimize database operations using Prisma ORM.
• Integrate AI services for diet planning and recipe recommendations.
• Build and maintain RESTful APIs with proper documentation.
• Implement authentication and authorization systems.
   

From you:

• Strong experience with TypeScript and Node.js.
• Proficiency in NestJS framework.
• Experience with Prisma ORM and PostgreSQL.
• Understanding of RESTful API design principles.
• Knowledge of authentication and authorization mechanisms.
• Understanding of AI prompt engineering concepts and API integration.
   

Will be an advantage:

• Experience with Telegram Bot API.
• Understanding of microservices architecture.
   

Your journey to the job offer: message from the recruiter - interview - test - final interview - job offer.

Join Our Team as a Flutter Developer!

We’re on the hunt for a creative and reliable Flutter Developer who’s excited to build sleek, high-performance mobile apps. If you're passionate about pixel-perfect UIs, smooth animations, and scalable architecture — we'd love to meet you!

What You’ll Work On:

Developing cross-platform apps 
Working closely with designers to bring intuitive interfaces to life
Integrating APIs, Firebase, local storage, and other services
Building and maintaining clean, modular code
Optimizing performance, managing state, and handling edge cases

Tech Stack:

Framework: Flutter, Dart
AI: OpenAI, TensorFlow Lite, Firebase ML, custom APIs
State Management: Provider, Riverpod, Bloc
Backend: Firebase, Node.js, REST APIs
Tools: Git, CI/CD, Figma, Jira, Linear

Why Join Us?

Work on beautiful, high-impact apps
Friendly and supportive team
Opportunities to explore new packages, tools, and approaches
Room to grow — technically and professionally

We're building a next-generation onboarding system for sellers on a fast-scaling eCommerce platform. The goal is to streamline the seller journey from registration to full integration, improving both automation and user experience.

You’ll be working on backend services that handle everything from form workflows, document validation, identity checks, status tracking, and integration with third-party services. Performance, reliability, and scalability are key priorities as the platform is expanding globally.
!!!All team communication is in English — daily standups, planning, and code reviews.

The company is a global marketing tech company, recognized as a Leader by Forrester and a Challenger by Gartner. We work with some of the world’s most exciting brands, such as Sephora, Staples, and Entain, who love our thought-provoking combination of art and science. With a strong product, a proven business, and the DNA of a vibrant, fast-growing startup, we’re on the cusp of our next growth spurt. It’s the perfect time to join our team of ~450 thinkers and doers across NYC, LDN, TLV, and other locations, where 2 of every 3 managers were promoted from within. Growing your career with the company is basically guaranteed.

We’re seeking a talented Senior and 2 Middle Fullstack Developers to join our team. As a key member of our engineering team, you’ll play a pivotal role in developing and maintaining critical features for our campaign orchestration platform. You’ll work in an agile environment, contributing to iterative development and continuous improvement.

Responsibilities:
 

• Develop end-to-end features in a complex, data-intensive web application.
• Focus on high-quality client-side development (about 60% client).
• Take part in the design and implementation of client-side infrastructure.
• Write clean and maintainable code, including high coverage of unit and E2E tests.
• Provide guidance and mentoring for other team members.

• Initiate and lead infrastructure improvements and strive for excellence.

   

Requirements:
 

• B.Sc. (or higher) in computer programming (or equivalent).
• 6+/4+ years of total experience in Web Development
• 5+/3+ years of professional experience with client-side development in React or Angular.
• 4+/2+ years of experience with backend development (in C#, Node.js, or TypeScript).
• Hands-on experience with relational databases (SQL).
• Hands-on experience in designing and developing large-scale highly performing applications — a must.
• Strong background in computer science fundamentals — data structures, object-oriented programming, and multi-threading.

• Spoken English

   

Advantages:
 

• Good understanding of micro-services architecture, experience with Docker and orchestration infrastructures (K8S).
• Experience with cloud databases such as Snowflake.
• Experience with automation frameworks such as Cypress and Cucumber.
• Experience with NoSQL databases.
• Experience with working in a global organization or with offshore teams.

What we offer:

• 20 working days’ vacation; 
• 10 paid sick leaves;
• public holidays;
• equipment;
• accountant helps with documents;
• many cool team activities.

Apply now and start a new page of your fast career growth with us!

We are looking for a Senior Quality Assurance Engineer, who will be a part of the project, developing drugs in oncology and working closely with Clinical trials. This full-time role offering the opportunity to be fully embedded in a dynamic, cross-functional team environment.

!!! QAs only with CLINICAL TRIALS EXPERIENCE!!! 

Tasks: 

• Design, execute, and maintain manual test cases based on functional and non-functional requirements
• Analyze technical documentation and collaborate with cross-functional teams to ensure comprehensive test coverage
• Identify, document, and track software defects, and support root cause analysis in close cooperation with development teams
• Participate in test planning, test strategy development, and risk-based testing activities

Skills: 

• Minimum 5 years of professional experience in manual software testing 
• Proven ability to design, execute, and document test cases based on technical specifications and requirements
• GxP knowledge
• mandatory experience in clinical trials
• IRT (Interactive Response Technology) knowledge
• good verbal and written English skills

We are looking for a sharp, logical, and highly organized 
Business Analyst to streamline and enhance our sales and marketing operations. 

The ideal candidate will have excellent analytical skills, strong business acumen, and outstanding English communication. You will play a key role in building scalable sales processes, improving data accuracy, and aligning sales and marketing efforts to drive revenue growth.

If you thrive on solving complex problems, creating order from chaos, and driving efficiency — this role is for you.

What you'll do (responsibilities)

• Sales Enablement & Strategy
  Develop and manage sales playbooks, define the buyer’s journey, and improve forecasting accuracy in collaboration with the Head of Sales.
   
• CRM & Data Management
  Maintain clean and reliable CRM data, monitor changes in key contacts, and support hypothesis testing to refine the Ideal Customer Profile (ICP).
   
• Sales Content & Tools Development
  Create demo environments, tailored presentations, competitor battlecards, and customer case studies to support the sales process.
   
• Cross-functional Collaboration
  Work closely with Marketing to align sales and marketing funnels and continuously refine outbound strategies.
   
• Reporting & Process Optimization
  Build dashboards to track key sales metrics and implement streamlined processes to boost sales and marketing efficiency.

What we look for (requirements)

• 1+ years of experience in Sales/Revenue/Data Operations, Business Analysis or a similar role.
• Strong analytical and problem-solving skills with a data-driven mindset.
• Excellent communication skills in English — both written and verbal.
• Proficiency in CRM platforms (ideally HubSpot) and sales automation tools.
• Ability to work independently, prioritize tasks, and manage multiple projects simultaneously.
• Experience creating sales enablement content such as playbooks, battlecards, and case studies.
• Strong understanding of sales forecasting and data analysis techniques.

Nice-to-have skills

•  Experience in B2B SaaS or tech industry.
•  Familiarity with account-based marketing (ABM) strategies.
•  Experience working closely with both sales and marketing teams.

Why you'll love working at Precoro:

1. Trust-based management: No micromanagement—your ideas and initiatives are always encouraged.
2. Supportive team culture: You're not alone, our team is open, honest, and always ready to help.
3. Reimbursement for professional learning: We invest in your growth through courses, lectures, and more.
4. Flexible hours: We care about results, not how long you sit at your desk.
5. 26 days off annually (15 vacation days + 11 public holidays): Work-life balance is a priority for us.
6. Medical insurance (after six months) and Unlimited sick leave without requiring a medical certificate. Your health matters most.
7. Pet-friendly offices in Warsaw and Kyiv: Love your furry friend? Bring them along!
8. Supporting Ukraine: We proudly assist the Armed Forces and contribute to projects that bring victory closer.

Hiring Process

Our hiring is quick and straightforward:

1. Recruiter interview (30–45 minutes)
2. Interview with Head of Sales (1 hour)
3. Test task

If you’re strategic, detail-oriented, and ready to make an impact — we want to hear from you!

Join a team that values trust, transparency, and open communication.

We foster an environment where everyone is encouraged to contribute ideas, challenge the status quo, and drive business growth!

Looking for Senior Microsoft Dynamics CRM Developer (EU only)

We are searching for a highly skilled Senior Microsoft Dynamics CRM Developer to join our team remotely within the EU timezone.

Key Responsibilities:

• Design, develop, and document new system components aligned with architectural and functional specifications.
• Maintain and support existing Dynamics CRM components through defect fixing and enhancement cycles.

• Provide technical leadership to small teams, taking ownership of deliverables and code quality.

   

Technical Requirements:

• 5+ years of experience in Microsoft Dynamics CRM development, including full application development lifecycles.
• Proven expertise in C# programming and Dynamics CRM customization/configuration.
• Strong knowledge of Dynamics CRM APIs and integrations.
• Solid experience in data modelling and SQL.
• Experience in C# Web Services development (REST/SOAP).
• Familiarity with BI tools for reporting and dashboard creation.
• Excellent communication skills and fluency in English.

To apply, please answer this question:
Describe a challenging Dynamics CRM integration or customization you implemented. What was the problem, and how did you solve it?