Jobs at Djinni

About the Project

A leading no-code platform provider from the US has partnered with us to strengthen their development team. This platform enables businesses and individuals to build web and mobile applications without traditional coding, offering a user-friendly drag-and-drop interface.

We help the client to modernise their global solution and enhance it with the new features. Successful candidates will be working alongside the international team.

Required Skills

• minimum 3 years of experience;
• experience with Node.js based web services;
• experience with integration with front-end frameworks (preferably React);
• ability to quickly grasp new technologies;
• ability to communicate with the clients directly;
• English level — Intermediate+ for verbal communication and correspondence with our UK and US clients.

Responsibilities

Within this role the new members will be responsible for:

• analysis and technical decomposition of tasks;
• estimation and planning;
• new features implementation;
• regular code reviews;
• collaboration and knowledge sharing with the team members.

What We Offer

• remote work with a high degree of involvement in teamwork;
• a contract-based employment (B2B);
• work within an organised, independent, and motivated team that adheres to high standards for the quality of software solutions and code;
• opportunities to work on diverse tasks, deepening your experience quickly;
• collaboration in a team that is passionate about their work, and has an open knowledge sharing culture;
• modern project’s infrastructure (including CI/CD pipelines);
• technical support and assistance provided by our internal IT services department.

Expectations

This is what is expected from the successful candidate on this position:

• a minimum of 1 year of commitment; 
• full-time work;
• synced schedule with a team (European time zones);
• participation in regular meetings: daily sync-ups, planning sessions, code review.
   

Recruitment Stages:

• application registration
• technical quiz
• technical interview
• interview with PM of relevant project
• offer

About the project
To support the ambitious growth plans of the project and achieve upcoming product goals, we are opening a replacement position for a QA Engineer who will bring a fresh perspective and energy to the team.

You’ll join an enterprise-level web platform that serves as the analytical “brain” for a multinational telecom company. We take complex operational data and transform it into clear, audit-ready insights. It’s a high-impact project where your work directly affects how a global leader operates. 

The project has mature processes and automation, and has a strong focus on data validation and backend logic. The team is open to change, ideas, and improvements, and this is a place where your input will be heard and will have a real impact on the product.

You’ll be the only QA Engineer on the project, working closely with developers in a collaborative and supportive environment, with minimal bureaucracy and a lot of freedom in how testing is done.

Tools & Technologies:

• Web application (FE/BE)
• SQL (complex queries, joins, aggregations)
• Playwright (JS/TS)
• Databricks
• API testing tools (Postman, Swagger)
• Project Management tool (Azure DevOps)

Responsibilities:

• Perform manual testing of new and existing web application functionality
• Validate data and business logic using advanced SQL queries
• Create, maintain, and improve test documentation (checklists, test cases, reports)
• Support and gradually develop automated tests using Playwright (with mentoring available)
• Collaborate closely with developers from the early stages of development
• Participate in sprint activities, planning, demos, and product discussions
• Proactively suggest improvements to testing approaches, processes, and tools
• Use AI tools to improve testing efficiency and day-to-day work.

What we offer:

• Real influence on product quality and testing processes;
• Freedom in choosing testing approaches and tools;
• Mentorship in test automation and professional growth;
• Long-term project with future opportunities to switch between projects;
• Friendly, supportive team with open communication;
• Minimal bureaucracy and transparent processes;

• Remote or hybrid work options.

   

Expectations:

• Long-term cooperation (minimum 1 year)
• Full-time involvement (40 hours per week)
• Regular participation in team meetings and sprint ceremonies
• Willingness to grow together with the project and the company

Required skills:

• 1+ year of commercial experience in web application testing (GUI, API);
• Strong SQL skills (joins, aggregations, subqueries) - must-have;
• Basic experience or strong interest in test automation (Playwright / TypeScript);
• Understanding of software testing fundamentals, types, and levels;
• Knowledge of test design techniques and ability to apply them in practice;
• Understanding of QA processes across the SDLC;
• Basic knowledge of HTML, CSS, HTTP, JSON;
• Ability to write clear and structured bug reports and test documentation;
• English level: Intermediate+ or higher.

Recruitment stages:

• Application registration via google form;
• Technical quiz; 
• Interview with QA Lead and QA Manager;
• Interview with PM;
• Offer.

N-iX is looking for a Lead Machine Learning Engineer (Computer Vision) to join our external expert network.

We are looking for a Lead-level ML expert who will support our hiring process by conducting technical interviews and evaluating candidates according to our internal competency matrix. This is not a full-time project role, but a flexible collaboration where you will participate in technical interviews when needed.

Responsibilities:

• Conduct technical interviews for ML / Computer Vision candidates
• Evaluate candidates according to the competency matrix
• Assess both practical experience and theoretical knowledge
• Provide clear and structured feedback after interviews
• Validate real-world experience in building and deploying ML solutions

 Requirements:

• 6+ years of experience in Machine Learning / Computer Vision
• Experience taking ownership of technical solutions (design, decision-making, mentoring, or leading initiatives)
• Strong hands-on engineering background
• Experience working with production ML systems
• Upper-Intermediate English or higher
  Strong hands-on experience with PyTorch or TensorFlow
• Solid understanding of end-to-end ML lifecycle
  Experience with model deployment and inference optimization
• Experience with experiment tracking tools
  (MLflow, Weights & Biases, DVC, or similar)
• Understanding of distributed training concepts

Requirements

• Proven experience as a Game Designer in slot games
• Strong understanding of key slot mechanics such as Free Spins, Hold & Win, Respin, Pick, and similar features
• Hands-on experience creating and maintaining high-quality GDD
• Russian language as a must
• Experience designing game features and providing art feedback
• Experience working in cross-functional teams
• Strong market and competitor analysis skills
• Proven ability to create engaging, intuitive, and visually appealing game design
• Strong analytical skills to evaluate game performance and player behavior
• Excellent communication and teamwork skills, especially in a remote environment
• Passion for slot games and a strong drive to deliver the best possible player experience

Description

• Create and develop slot game from idea to release
• Design game mechanics, bonus features, and player flow
• Prepare, maintain, and update full game design documentation (GDD)
• Collaborate closely with art, development, and mathematics teams throughout production
• Work with mathematicians on balancing mechanics, including RTP and volatility
• Ensure the final implementation matches the original vision and design goals
• Participate in product testing, analysis, and iteration processes
• Improve UX and overall player experience
• Research market trends, competitors, and successful game features
• Contribute unique ideas and strong features that make games more engaging and distinctive
• Provide clear tasks, feedback, and direction to cross-functional teams, including art feedback where needed

Benefits

• Work in an international product company with strong expertise in the iGaming industry.
• Competitive compensation package.
• Hybrid working format with flexible hours within CET.
• 20 days of paid vacation + Sick leave.
• Stable income and long-term cooperation.

We are the creators of a new fintech era!
Our mission is to change this world by making blockchain accessible to everyone in everyday life. WhiteBIT is a global team of over 1,200 professionals united by one mission — to shape the new world order in the Web3 era. Each of our employees is fully engaged in this transformative journey.
We work on our blockchain platform, providing maximum transparency and security for more than 8 million users worldwide. Our breakthrough solutions, incredible speed of adaptation to market challenges, and technological superiority are the strengths that take us beyond ordinary companies. Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT and VISA.

The future of Web3 starts with you: join us as a Financial Data Analyst!

Requirements:

— Ability to analyze and validate data, identify errors or inconsistencies
— Critical thinking and ability to question information
— Strong collaboration skills
— Ability to learn quickly and adapt to new tools and data
— Time management and planning skills
— Ability to understand stakeholders’ needs and present results clearly
— Basic understanding of financial statements (Balance Sheet, P&L, Cash Flow)
— Experience with Google Sheets (functions, pivot tables, charts)
— Understanding of relational databases and SQL basics
— Experience with Python (pandas)
— Experience with BI tools is a plus (especially Tableau)

Responsibilities:

— Collecting and processing data from internal and external sources
— Preparing reports (revenue, expenses, KPIs, P&L, etc.) based on templates and under the guidance of the Financial Data Lead
— Automation of workflows
— Working with BI tools: building and maintaining dashboards for different products, data visualization
— Ensuring compliance with internal standards for data quality, timelines, and confidentiality

Work conditions:

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.
Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 22 business days of paid leave.
— Health insurance
— Additional days off for national holidays.
— Office type of cooperation (relocate)

We provide challenging tasks that offer continuous growth opportunities for everyone. We've consistently embraced development and the advancement of our colleagues, ensuring work is always engaging. Our team is prepared to offer support, share expertise, and lend a helping hand when needed.

About the job:
We are looking for an experienced DevOps & Platform Engineer (Lead) to join the core team of a high-scale, mission-critical platform.

Self-motivated, quick learner, and proactive individual with a can-do attitude.

Strong English communication skills and ability to collaborate effectively within a team.

Responsibilities:

• Design, build, and maintain On-Prem and Cloud-based infrastructure.
• Running and optimizing multi environment infrastructure (development, staging, production) with clear operational processes.

• Manage and operate Kubernetes clusters at scale.

• Build and maintain CI/CD pipelines.

• Support microservices built.

• Implement security best practices.

• Monitoring, logging, and alerting.

• Improve performance, scalability, and system resilience.
• Ability to troubleshoot complex production issues across networking, Kubernetes, cloud services, and application layers.

• Collaborate with development and operations teams to identify and address bottlenecks in the software delivery lifecycle.

Requirements:

• 7+ years of hands-on DevOps & Platform experience.

• Strong experience with AWS (EC2, EKS, RDS, S3, VPC, IAM)

• Proven experience with Kubernetes and Helm

• Solid experience with Docker and containerized environments

• Hands-on experience building CI/CD pipelines

• Experience with Infrastructure as Code tools

• Experience working on mission-critical systems (payments, fintech, banking, gaming or similar)

• Ability to operate and troubleshoot production systems under pressure

Nice to Have

• Experience leading complex infrastructure projects (e.g. migration from one cloud provider to another).
• Experience implementing and designing disaster recovery strategies.
• Experience and understanding of networking, security, and scaling.

Ready to offer:

Social benefits, paid vacations, sick-leaves

Career possibilities with growing team.

We’re looking for a Senior Game Mathematician — someone who sees patterns where others see chaos, and who understands that behind every “big win” there’s elegant math. You’ll shape the core of our games: design math models, define volatility and player experience, and turn ideas into numbers that actually feel right.

We’re a team of people who left safe jobs to build something better. No bureaucracy, no pointless meetings — just sharp minds building games that stand out.

🎲 What you’ll do

• Design and develop math models for slot games — from raw concept to release;
• Prototype and simulate gameplay mechanics to test balance, volatility, hit rates, and potential;
• Reverse-engineer competitors’ math to understand and improve on the best mechanics in the market;
• Collaborate with producers and developers to bring your math to life — ensuring technical and creative integrity;
• Run simulations, build reports, and validate results in Excel or via your own scripts/tools;
• Prepare clear documentation for internal reviews, certification, and release;
• Analyze performance data of live games, providing actionable insights for tweaks and next iterations.

🧠 What you bring

• 3+ years of experience in slot game math design (or similar gambling / probability-based products);
• Advanced Excel and solid programming/scripting knowledge (Python, R, or similar);
• Deep understanding of RTP, volatility, hit frequency, max exposure, feature math, and player behavior;
• Obsessive attention to detail — and ability to explain complex systems clearly;
• Collaborative mindset: you enjoy working with creative and technical people to make something that just feels good;
• Fluent English.

💎 Nice to have

• Experience with internal math simulators or your own simulation tools;
• Familiarity with regulatory / certification requirements for game math;
• Curiosity for game design and player psychology — not just numbers.

🎁 Benefits

• 21 vacation days + 5 extra day-offs annually;
• 12 paid sick days;
• Fully remote format — work from anywhere you feel productive;
• Flexible schedule: start your day anytime between 08:00–12:00 CET;
• Fixed budget for health insurance and gym/fitness;
• Provided all required work equipment;
• Zero bureaucracy and direct communication with founders and C-level;
• Minimal meetings, async-friendly workflow;
• Startup energy: fast motion, creativity, and tight-knit communication;
• Business trips and team meetups several times per year;
• Multiple salary payout options (flexible formats);
• …And many more perks unlocked after we hit break-even.

Please note, 2+ years of experience in C++ is a mandatory for this position.

Requirements:

• 7+ years of hands-on commercial software development experience
• 3+ years of strong Scala experience
• 2+ years of solid C++ experience
• Upper-Intermediate (B2+) English with confidence in active communication (meetings, discussions)
   

Responsibilities:

• Take full ownership of SQL acceleration features — from architecture and design to implementation and measurable performance gains
• Design, build, and optimize Big Data processing algorithms using Scala, Java, and C++
• Develop high-performance, low-latency components at the intersection of Big Data and compiler technologies
• Work with custom DSLs and code generation frameworks to extend and enhance query execution capabilities
• Contribute to cross-language integrations (Java ↔ C++ via JNI) and drive system-wide performance improvements
  
   

About Fintech Farm
We are a UK fintech creating successful neobanks in emerging markets in partnerships with local traditional banks. The mission is to make banking services accessible, simple and fun to use worldwide and the goal is to launch neobanks in 50+ markets, serving 100m+ customers.
Our success builds upon a best-in-class product, customer experience, emotional engagement, viral marketing and deep credit-decisioning expertise across our product suite covering credit, payments, savings and investments. One of our founders also previously co-founded a highly successful Eastern European neobank with a multi-million customer base.
We launched our first market with Leobank in Azerbaijan in 2021, where we’ve already taken a leading market position. Our next market was Vietnam, where we launched Liobank in early 2023 and have also reached strong traction. We have several more markets on the roadmap in the next 12 months and are starting to build out teams there.

Why Fintech Farm is a great place to be
Our ambition. We are looking to become a leading consumer digital bank brand in each market we operate, making it easy for consumers to interact with their money. You could be a part of this exciting journey.
Our culture
Customers. We always go above and beyond to provide an amazing customer experience. We serve our customers the way we would want our mom to be served. And who said that banking has to be boring? We make our apps not just easy but fun to use.
People. We are all business partners in our company. Each of us thinks big, acts as if we own the place and never takes “no” for an answer. We work with strong individuals whom we empower and trust rather than micromanage. Common sense rather than formal policies prevails in all that we do. We always stay curious and open-minded.

Your Role:
As a Support Engineer (Line 3), you’ll be responsible for investigating issues deeply within logs, databases, and backend processes, providing fixes, and supporting stable product operation across multiple markets.

What You Will Be Doing:

• Analyzing issues based on logs, database data, and system processes
• Investigating complex technical incidents escalated from Line 2 support
• Providing bug fixing for production issues
• Collaborating with developers to identify root causes and implement fixes
• Writing technical documentation for known issues and their resolution paths
• Participating in post-mortem analysis to prevent recurring problems

Who You Are:

• Analytical and detail-oriented — you’re not afraid to dig deep into logs and code
• Proactive and accountable — you don’t wait to be told what to do
• A strong team player — you can explain your ideas clearly and listen to others
• Curious and open to learning — you love solving puzzles and improving things

Your Experience:

• Basic knowledge of Java or JavaScript
• Understanding of the software development life cycle
• Experience with databases (SQL knowledge required)
• English level above intermediate — you can read technical documentation and communicate with international teams

What we are offering

• Competitive salary is negotiable depending on the candidate’s level
• Share options
• We are still a start-up and more benefits are on the way

We’re looking for a Middle Full-Stack Developer with a strong backend focus to join our team.
The role is mostly backend-oriented (Django / Django REST Framework), with React on the frontend side. You’ll work on building and maintaining APIs, implementing business logic, and contributing to the frontend where needed.

Skills requirements:

• 2+ years of commercial experience as a Full-Stack or Backend Developer
• Strong experience with Django / DRF
• Hands-on experience with React
• Good understanding of REST APIs and databases

• Ability to work independently and communicate clearly within a team

   

Nice to have

• Experience with AWS in production
• Basic DevOps understanding
• Experience with async tasks (Celery or similar)

Key Responsibilities

• Develop and maintain backend services using Django / Django REST Framework
• Build and support REST APIs and core business logic
• Work with AWS infrastructure and cloud services
• Contribute to frontend development using React
• Collaborate with the team, participate in code reviews, and improve code quality

We offer:

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Comfortable, spacious and well-equipped office in the city center;
• Team building activities, corporate events.

Dataforest is seeking a QA Engineer. If you are looking for a challenging project, and a friendly, supportive team ‒ you have found the right place to send your CV.

Professional requirements:

- 1+ year experience of testing web applications, in particular web applications developed with JavaScript on the frontend (React, Vue, Angular, pure JS) and REST API on the backend;

- Knowledge of software development life cycle;

- Experience in writing test documentation;

- Experience with teamwork tools such as JIRA, Confluence, Git/Bitbucket;

- Good communication skills and a positive mindset.

- Experience in an outsourcing company is required.

Nice to have:

- Knowledge in API testing using Postman;

- Experience with Stripe or other payment system;
- Experiance with Fintech.

We offer:

- Great networking opportunities with international clients, challenging tasks;

- Building interesting projects from scratch using new technologies;

- Personal and professional development opportunities;

- Competitive salary fixed in USD;

- Paid vacation and sick leaves;

- Flexible work schedule;

- Friendly working environment with minimal hierarchy;

- Comfortable, spacious and well-equipped office in the city center;

- Team building activities, corporate events.

Looking for a Django/DRF Developer to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule ‒ you have found the right place to send your CV.

     Skills requirements:

• 2 + years of experience with Django and it's components;
• Experience with RESTful APIs, DRF and related libraries;
• Experience with Celery and async task management;
• Experience with SQL and query optimisation;
• Experience of writing tests;
• Able to work independently and excellent in communicating challenges and issues;
   

     Optional skills (as a plus):

• Experience with AWS services (EC2, API Gateways, Lambda, SQS);
• Experience with NoSQL databases (Redis, Elasticsearch, etc.);
• Experience of end-to-end implementation for new functionality;
• Experience with payment systems integrations (Stripe, Shopify, Recurly, Paypal, Braintree, etc.);
• Experience with chargeback management tools (Ethoca, RDR, CDRN, etc.);
• Understanding how to handle high load on projects;
  
  Key responsibilities:
• Design, develop and maintain payment gateway and other integrations;
• Design and develop new features and maintain existing functionality.
• Design and develop web applications using Python/Django/Celery.
• Design, develop and maintain RESTful APIs using Django Rest Framework (DRF).
• Write clean and well-structured code that is easy to read and maintain;
• Write and maintain technical documentation.
• Write and maintain unit tests to ensure code quality.
• Optimize and maintain the security, performance, and usability of the applications.
• Collaborate with the PM/Frontend/DevOps/QA and others team members.
  
  We offer:
• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Comfortable, spacious and well-equipped office in the city center;
• Team building activities, corporate events.

Looking for a Django/DRF Developer to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule ‒ you have found the right place to send your CV.

     Skills requirements:

• 3 + years of experience with Django and it's components;
• Experience with RESTful APIs, DRF and related libraries;
• Experience with Celery and async task management;
• Experience with SQL and query optimisation;
• Experience of writing tests;
• Able to work independently and excellent in communicating challenges and issues;
   

     Optional skills (as a plus):

• Experience with AWS services (EC2, API Gateways, Lambda, SQS);
• Experience with NoSQL databases (Redis, Elasticsearch, etc.);
• Experience of end-to-end implementation for new functionality;
• Experience with payment systems integrations (Stripe, Shopify, Recurly, Paypal, Braintree, etc.);
• Experience with chargeback management tools (Ethoca, RDR, CDRN, etc.);
• Understanding how to handle high load on projects;
  
  Key responsibilities:
• Design, develop and maintain payment gateway and other integrations;
• Design and develop new features and maintain existing functionality.
• Design and develop web applications using Python/Django/Celery.
• Design, develop and maintain RESTful APIs using Django Rest Framework (DRF).
• Write clean and well-structured code that is easy to read and maintain;
• Write and maintain technical documentation.
• Write and maintain unit tests to ensure code quality.
• Optimize and maintain the security, performance, and usability of the applications.
• Collaborate with the PM/Frontend/DevOps/QA and others team members.
  
  We offer:
• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Comfortable, spacious and well-equipped office in the city center;
• Team building activities, corporate events.

Dataforest is a hard-working and tight-knit team with first-rate experience in full-cycle developing data-driven solutions.

We are looking for a IT Project Manager to join our highly talented and motivated team.

Skills Requirements:

• 1,5+ years of experience as a IT Project manager ;
• Strong knowledge of project planning;
• Experience with managing web develop projects;
• Project documentation knowledge and understanding;
• Knowledge of the methodology: Scrum, Kanban, Waterfall;
• Experience with task tracking systems;
• Experience in outsoursing company.

Responsibilities:

• Plan and document project objectives, tasks, timelines and work assignments;
• Define and track project success metrics;
• Setting tasks to performers (programmers, designers, other);
• Full interaction with the development team;
• Business analysis and making technical requirements (optional).

We offer:

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Comfortable, spacious and well-equipped office in the city center;
• Team building activities, corporate events.

Cosmolot is a Ukrainian product IT company that creates and develops an online digital entertainment platform. We build technology-driven solutions with a strong focus on security, transparency, and user comfort.

As a Data Analyst, you will work with data to uncover trends, monitor key metrics, and provide insights that help teams make informed business decisions.

Requirements

• 2+ years of experience as a Data/Marketing Analyst or in a similar role
• Strong practical knowledge of SQL (CTEs, window functions) and Excel
• Practical experience with BI tools (Power BI or similar)
• Ability to work with large datasets and collect, organize, and analyze large volumes of data
• Strong analytical thinking and attention to detail
• Strong communication and collaboration skills, with the ability to clearly present insights to business stakeholders

Your Responsibilities

• Analyze cross-functional data (marketing performance, player activity and behavior, conversion funnels, and cohorts) to support business decision-making
• Collect and prepare data from multiple sources for analysis and reporting
• Build and maintain reports and dashboards 
• Perform ad-hoc and exploratory analysis based on business requests
• Identify trends, patterns, and key drivers behind changes in marketing metrics
• Present analytical insights and findings to stakeholders

Nice to Have

• Experience in gaming and traffic or other product verticals
• Experience with Google Analytics

What We Offer

• Work in a strong team of professionals and genuinely supportive people
• Opportunities for professional growth and development
• Flexible working hours
• Medical insurance
• Sports expense compensation
• Psychological support
• Free language classes (English, Spanish, and German)
• 18 working days of paid vacation, paid sick leave, and sick days
• Regular team buildings and corporate events
• All necessary equipment for comfortable work