Jobs at Djinni

9814
  • · 26 views · 3 applications · 5d

    Unreal Engine Developer / Lead (E-Commerce 3D Application)

    Full Remote · Worldwide · Product · 5 years of experience · English - B1
    We are looking for an experienced Unreal Engine Engineer to lead a small team of two Unreal developers and take full ownership of a production-stage Unreal Engine–based application used in e-commerce by real customers. This is a client-facing, high-impact...

    We are looking for an experienced Unreal Engine Engineer to lead a small team of two Unreal developers and take full ownership of a production-stage Unreal Engine–based application used in e-commerce by real customers. This is a client-facing, high-impact product in which stability, visual quality, and performance directly affect the user experience.

     

    The role combines hands-on Unreal development with technical leadership. You will also work as part of a cross-functional product team, collaborating closely with front-end and back-end engineers to ensure seamless integration between Unreal Engine and the rest of the application stack.

     

    YOE: 5 years

     

    Core Requirements:

    • C++ Unreal development experience
    • Experience compiling Unreal Engine from source
    • Strong understanding of Unreal Engine architecture, Blueprints, and optimization for production use
    • Proven ability to own and maintain a live Unreal Engine-based product
    • Demonstrated experience leading or mentoring other developers
    • Ability to make architectural and technical decisions that ensure stability, scalability, and performance
    • Comfort working in a cross-functional team with front-end, back-end, and business stakeholders
    • Oversee the coverage of existing and new functionalities with autotests
    • Perforce version control
    • Ukrainian/russian language is needed to communicate with the team
       

    Nice to Have:

    • Online game development and support 
    • 3D modeling or visualization (3ds Max, Maya, Blender, etc.)
    • Rendering engines (V-Ray, Corona, etc.)
    • WebGL 
    • Python or other scripting languages
    • English language knowledge, sufficient for technical collaboration

       

    Responsibilities:

    • Lead and oversee the Unreal Engine development team (2 developers)
    • Ensure stability, performance, and scalability of the production UE application
    • Lead the effort to implement a public API for UE application
    • Act as the Unreal Engine representative in a cross-functional product team
    • Collaborate closely with front-end and back-end developers to align architecture and integrations
    • Develop and improve tools for 3D asset assembly and scene management
    • Work with content creators and artists to achieve optimal asset integration and visual fidelity
    • Identify and automate repetitive or inefficient workflows
    • Maintain and evolve the automated rendering and image production pipeline
    • Continuously analyze and optimize memory usage, load times, and rendering performance
    • Prototype and implement a new product hypothesis in collaboration with other product team members
    • Provide technical feedback, documentation, and process improvements
    • Automated application and asset update to the latest stable UE version on a yearly basis.
       

    Expectations:

    • Work remotely with consistent availability during core hours or from the office in Warsaw.
    • Communicate proactively with the team and management about progress, blockers, and priorities
    • Coordinate Unreal development efforts with front-end and back-end teams
    • Manage personal and team workload effectively, ensuring delivery reliability
    • Identify and drive improvements across technology, process, and pipeline
    • Maintain transparency on issues and deadlines
    More
  • · 158 views · 66 applications · 5d

    QA Automation Engineer (Java / Selenium)

    Full Remote · Worldwide · 2 years of experience · English - B1
    About the role We are looking for a QA Automation Engineer to work on UI test automation using Java and Selenium WebDriver. The role is focused on building and maintaining automated test suites, improving test coverage, and supporting product quality...

    About the role

    We are looking for a QA Automation Engineer to work on UI test automation using Java and Selenium WebDriver.

    The role is focused on building and maintaining automated test suites, improving test coverage, and supporting product quality during active development.

     

    This is a time-limited engagement (up to 6 months) with a full-time setup, though workload may vary depending on the project phase.

     

    Responsibilities

    • Develop and maintain UI automation tests using Selenium WebDriver
    • Write clean, maintainable test code in Java
    • Work with TestNG and Maven
    • Integrate automated tests into CI pipelines
    • Analyze test results and investigate failures
    • Collaborate with developers and QA team on quality improvements
    • Participate in test planning and automation strategy discussions
    • Maintain test documentation and reports

     

    Requirements

    • Strong knowledge of Java Core (Java 13–21):
       
      • Collections
      • Streams
      • Functional interfaces

    •  
    • Solid understanding of OOP principles

      • Interfaces
      • Abstract classes

       

    • Significant hands-on experience with Selenium WebDriver
    • Experience with TestNG and Maven
    • Understanding of OAuth2 in automated testing scenarios
    • English: good speaking and writing skills

     

    Nice to have

    • Experience setting up local environments and complex configurations
    • Experience with Allure for test reporting
    • Experience working in distributed or remote teams

     

    We offer

    • Remote work
    • Flexible workload within a full-time setup
    • Contract up to 6 months
    • Clear tasks and technical focus
    • Professional team and structured workflow
    More
  • · 16 views · 0 applications · 5d

    Embedded Software Engineer (bare metal experience-must)

    Full Remote · Ukraine · 5 years of experience · English - B2
    Project Description: Join the team modernizing the software delivery process for the Body Controls Organization, focusing on Body Control Module (BCM) and Battery Access Module (BAM) Electronic Control Units (ECUs) within the Fully Networked Vehicle (FNV)...
    • Project Description:

      Join the team modernizing the software delivery process for the Body Controls Organization, focusing on Body Control Module (BCM) and Battery Access Module (BAM) Electronic Control Units (ECUs) within the Fully Networked Vehicle (FNV) architecture. This initiative aims to design, implement, and maintain a robust Level 2 (L2) testing framework using a Virtual ECU (vECU) platform. The framework will automate and continuously improve software validation, ensuring all functional and performance requirements are verified in a virtual environment before hardware deployment. Integration with CI/CD pipelines will deliver continuous feedback on component quality, enabling early defect detection and improved software stability.

       

    • Responsibilities:

      - Develop a scalable and modular Virtual ECU Development Studio (VEDS) for BCM and BAM ECUs.
      - Ensure compatibility with existing toolchains and enterprise development environments.
      - Implement co-simulation capabilities for seamless interaction between virtual and physical ECUs.
      - Configure the VEDS environment for L2 testing, including network simulation, signal routing, and diagnostic interfaces.
      - Create and execute detailed L2 test cases aligned with software requirements.
      - Automate test script development and integrate automated tests into CI/CD pipelines.
      - Expand virtual ECU test coverage and support development teams in debugging and root cause analysis.
      - Implement reporting and analytics for test coverage, defect trends, and performance metrics.
      - Participate in sprint-based development, contributing to objectives such as test strategy, environment setup, automation integration, test execution, and continuous improvement.

       

    • Mandatory Skills Description:

      - Proficiency in Bash, C/C++, Conan, Docker, Cmake, ARM\RH850 baremetal, ghs toolchain, Python.
      - Experience with version control and artifact management tools (GitHub, Jfrog Artifactory).
      - Familiarity with test management tools (e.g., Testrail), defect tracking systems (e.g., JIRA), automation frameworks, and debugging tools.
      - Ability to develop modular, reusable automated test scripts and integrate them into CI/CD pipelines.
      - Knowledge of Automotive network simulation, signal routing, and diagnostic interfaces in automotive environments.
      - Hands-on experience with Matlab co-simulation (Simulink, Stateflow).
      - Strong analytical skills for software requirements analysis and test coverage alignment.

       

    • Nice-to-Have Skills Description:

      - Proficiency in Groovy.
      - Experience with Polyspace and SonarQube for code quality and static analysis.
      - Prior involvement in mixed-mode testing scenarios (virtual and hardware ECUs).
      - Exposure to reporting and analytics for test coverage and defect trends.
      - Experience supporting development teams in debugging and root cause analysis.

    More
  • · 52 views · 5 applications · 5d

    ML Senior (AI / LLM, Gaming Industry)

    Full Remote · Countries of Europe or Ukraine · Product · 3 years of experience · English - None
    About: The team is building an AI platform in the gaming industry, working with LLMs, RAG, and multi-agent systems in production. Responsibilities: Design LLM architecture: RAG, multi-agent, tool-calling, memory Scale/optimize vector & semantic search...

    About: The team is building an AI platform in the gaming industry, working with LLMs, RAG, and multi-agent systems in production.

     

    Responsibilities:

    • Design LLM architecture: RAG, multi-agent, tool-calling, memory
    • Scale/optimize vector & semantic search (pgvector, hybrid search, reranking)
    • Build pipelines for GDD processing and validation
    • Develop prompt engineering, evaluation, and guardrails
    • Integrate local and cloud LLMs (Ollama / OpenAI-compatible APIs)
    • Design fault-tolerant AI systems for production workloads
    • Implement monitoring for quality, latency, and cost
    • Architect multi-agent workflows and manage agent coordination
    • Prepare the platform for TypeScript code auto-generation
    • Code review, mentoring, and team technical growth

     

    Must-have:

    • 3+ years in ML / Applied AI / LLM projects
    • Strong Python
    • Hands-on LLM, RAG, embeddings, vector search
    • Production AI/ML system design & maintenance
    • Multi-agent architectures and LLM orchestration
    • PostgreSQL + pgvector (or similar)
    • Async and event-driven pipelines
    • Docker (production)
    • Architectural mindset and ownership

       

    Nice-to-have:

    • HuggingFace / vLLM / OpenAI / Ollama
    • Hybrid search, rerankers, long-context strategies
    • RabbitMQ / Redis
    • CI/CD and MLOps practices
    • TypeScript (basic understanding)
    • Experience in game dev or content generation
    • Confluence / Jira API integrations

     

     

    More
  • · 93 views · 28 applications · 5d

    Technical Project Manager (Web3 / DeFi)

    Full Remote · Countries of Europe or Ukraine · 5 years of experience · English - B1
    About the company GraphDex is building a unified trading and analytics terminal for DeFi. We aggregate liquidity, trading execution and analytics across multiple blockchains into a single interface. We are a product Web3 startup with a small, highly...

    About the company

    GraphDex is building a unified trading and analytics terminal for DeFi. We aggregate liquidity, trading execution and analytics across multiple blockchains into a single interface.

    We are a product Web3 startup with a small, highly technical team. We move fast, release often, and solve real infrastructure challenges.

     

    About the role

    We are looking for a Technical Project Manager who understands how Web3 development works and can coordinate engineers in a fast-changing environment.

    This role is not about formal sprint bureaucracy or just tracking tasks. We need someone who can see bottlenecks early, coordinate team efforts, and help deliver features and releases under real

    market pressure.

     

    Responsibilities

    • Coordinate development across backend, frontend and blockchain modules
    • Work closely with Founder, QA and Product team
    • Break product goals into clear technical priorities
    • Identify blockers, risks and weak points in delivery
    • Quickly reorganize team focus when priorities shift
    • Coordinate integrations, releases and production launches
    • Help the team handle bugs, scaling issues and unexpected production problems

     

    Requirements

    • Experience in technical project / delivery management from 5 years
    Solid understanding of Web3 / DeFi ecosystem
    • Previous software development experience or strong technical background
    • Understanding of system architecture, APIs and development workflows
    • Experience participating in product launches or high-pressure release cycles
    • Strong prioritization and decision-making skills

     

    Will be a strong plus

    • Experience with trading platforms or fintech products
    • Experience working with Solana or other high-performance chains
    • Experience with real-time or high-load systems

     

    Language requirements

    Working proficiency in Ukrainian or Russian is required.
    English — intermediate level or higher.

     

    What we offer

    • Real Web3 infrastructure product (not outsourcing)
    • Small expert team with direct communication
    • High level of ownership and influence on processes
    • Competitive compensation + possible equity

    More
  • · 146 views · 28 applications · 5d

    Application Support Engineer (Power Platform / Low-code)

    Full Remote · Worldwide · 1 year of experience · English - B1
    About the role We are looking for a Technical Support Specialist to support and maintain solutions built on Microsoft Power Platform. The role focuses on production support, system stability, incident management, and troubleshooting of business-critical...

    About the role
     

    We are looking for a Technical Support Specialist to support and maintain solutions built on Microsoft Power Platform.

    The role focuses on production support, system stability, incident management, and troubleshooting of business-critical applications.

     

    You will work with Power Apps, Power Automate, Azure SQL Database, and integrations with external services, supporting existing solutions and ensuring their reliability and performance.

     

    This is a long-term, full-time position with a structured workflow and clear responsibilities.

     

    Responsibilities

    • Provide technical support for production Power Platform solutions
    • Troubleshoot incidents related to Power Apps, Power Automate, and Azure SQL Database
    • Monitor system stability and respond to incidents in a timely manner
    • Investigate root causes and propose permanent fixes
    • Support integrations with external services and APIs
    • Work with technical documentation and maintain support-related documentation
    • Communicate clearly with stakeholders regarding incidents, status, and resolutions
    • Participate in incident management and service improvement processes
       

    Requirements

     

    • Hands-on experience with Microsoft Power Platform:

      • Power Apps
      • Power Automate

      Understanding of Azure SQL Database

    • Experience supporting production systems
    • Strong troubleshooting and incident management skills
    • Ability to work with technical documentation
    • Clear communication skills and ability to interact with stakeholders
    • Strong sense of responsibility and attention to detail
    • Ability to work independently in a remote environment
       

    Nice to have

    • Experience with Power BI, Customer Voice, or similar Power Platform tools
    • Experience with email services (e.g. SendGrid)
    • Experience supporting enterprise solutions
    • Knowledge of ITIL or incident management best practices
    •  

    We offer

    • Full-time remote work
    • Long-term project
    • Stable workload
    • Clear processes and responsibilities
    • Opportunity to work with Microsoft Power Platform in real production environments
    More
  • · 460 views · 45 applications · 5d

    Front-End Engineer

    Full Remote · Worldwide · 1 year of experience · English - B2
    Requirements: 1+ years of experience in development Strong knowledge of Javascript and TypeScript Strong knowledge of Angular Strong analytical and problem-solving skills Experience working with RxJS ,NgRx ,signals, and new angular syntax...

    Requirements:

    • 1+ years of experience in development
    • Strong knowledge of Javascript and TypeScript
    • Strong knowledge of Angular
    • Strong analytical and problem-solving skills
    • Experience working with RxJS ,NgRx ,signals, and new angular syntax template
    • Confident AI prompting, understanding of LLM principles (Context window, RAG, System prompts)
    • Experience working with AI coding assistants (Cursor, Claude Code, GitHub Copilot)
    • Good understanding of asynchronous and reactive programming
    • Confident working with the Git version control system
    • Understanding of GraphQL
    • Intermediate level of English

    Would be a plus:

    • Experience working with React
    • Experience working with Websockets
    • Experience building large-scale SaaS platforms supporting millions of users.

    Responsibilities:

    • Build features and systems with attention to detail and performance.
    • Own end-to-end development, from conception to production.
    • Engineer not only solutions but also tools to understand the problem.
    • Work closely with cross-functional stakeholders to deliver a world-class product.
    • Identify and implement improvements to our existing systems.

    About the project:

    Project management platform. With the help of own API, it’s possible to do multiple integrations with communication, sales, analytics and other applications that are used by co-workers on a daily basis.

    We are looking for a frontend engineer to improve the beautifully crafted product that helps millions of people to enjoy their remote work! You will be responsible to deliver production-ready functionality in a cross-functional team and will be able to reach millions of people with your best effort and working time as part of a multinational team of highly skilled developers.

     


     

    More
  • · 71 views · 27 applications · 5d

    Senior FullStack Developer

    Full Remote · Ukraine · 4 years of experience · English - B2
    We are looking for a Backend Engineer to join a planned data and services migration project. The main focus of the role is migrating data from MongoDB to PostgreSQL and rewriting part of the backend services. This is not a firefighting role, but a...

    We are looking for a Backend Engineer to join a planned data and services migration project.
    The main focus of the role is migrating data from MongoDB to PostgreSQL and rewriting part of the backend services.

    This is not a firefighting role, but a structured technical migration with a clear scope and team support.

    Responsibilities

    • Participate in the migration of data from MongoDB to PostgreSQL
    • Rewrite and adapt backend services using NestJS
    • Translate MongoDB aggregation logic into SQL-based solutions
    • Work with relational data models and transactions
    • Optimize queries and data-related computations
    • Collaborate with the team on migration-related technical decisionsTech Stack (Core)

      • Node.js 18+, TypeScript
      • react, socket.io
      • NestJS (modules, controllers, services, DI)
      • MongoDB + Mongoose
      • PostgreSQL
      • TypeORM
      • REST APIs, DTOs, validation

      Requirements

      • Commercial experience with Node.js and TypeScript
      • Strong knowledge of MongoDB, including aggregation pipelines
      • Good understanding of relational databases and SQL
      • Careful and accurate work with data and computations
      • Basic understanding of backend security (JWT, roles, permissions)
      • English level: Upper-Intermediate (sufficient for daily communication).
        Nice to Have (Not Required)
        • Experience with NestJS guards, pipes, interceptors
        • Redis, background jobs, or queues
        • Previous experience with database migrations
        • Neo4j or real-time features (Socket.IO)
        • Experience using AI-assisted tools (e.g. Claude Code)

    Yojji is a development center, based in Europe. We are a team of specialists with great experience in JavaScript, full-stack development and web design. We provide outsource and outstaff services to reliable frequent customers and startups in the USA, Europe and Israel.

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  • · 88 views · 18 applications · 5d

    Marketing Manager

    Full Remote · Countries of Europe or Ukraine · Product · 2 years of experience · English - B1 Ukrainian Product 🇺🇦
    Horoshop is the largest SaaS platform for creating online stores in Ukraine. More than 12,000 entrepreneurs already use our product, and we continue to grow. We are looking for a Marketer who will help scale the product in Ukraine and international...

    Horoshop is the largest SaaS platform for creating online stores in Ukraine. More than 12,000 entrepreneurs already use our product, and we continue to grow.

    We are looking for a Marketer who will help scale the product in Ukraine and international markets. If you think strategically, enjoy experimenting with new channels, and know how to analyze results, we’ll be happy to welcome you to the team.
     

    Key Responsibilities

    • Planning and executing marketing activities to grow brand awareness and sales.
    • Searching for and testing new promotion channels.
    • Analyzing campaign performance, optimizing costs, and increasing efficiency.
    • Monitoring the market, competitors, and trends in the e-commerce and SaaS domains.
    • Collaborating with design, sales, and product teams.
       

    Requirements

    • 2+ years of experience as a marketer (preferably in B2B, SaaS, or e-commerce).
    • Understanding how different marketing channels work.
    • Experience with analytics tools (Google Analytics, Looker Studio, etc.).
    • Proven successful cases and understanding how to achieve measurable results.
    • Proactive mindset with the ability to propose new ideas and bring them to execution.
       

    Nice to Have

    • Upper-Intermediate level of English or higher.
    • Experience launching marketing activities in international markets.
       

    We Offer

    • A team with minimal bureaucracy and no micromanagement.
    • Opportunity to work remotely or from a Kyiv office (with a terrace and lunches).
    • Paid vacation and sick leave, as well as learning compensation.
    • Competitive salary based on experience and interview results.
       

    If you share Horoshop’s approach and want to grow one of the most successful Ukrainian SaaS products, please send your CV and portfolio.

    We’ll be happy to get to know you 🙂

    More
  • · 60 views · 19 applications · 5d

    Motion Design

    Countries of Europe or Ukraine · Product · 1 year of experience · English - None
    Motion Designer (UA Creatives) We are looking for a Motion Designer to create UA video creatives for paid channels: Meta, TikTok, YouTube. Responsibilities: - Creating and animating UA video creatives (6–30 sec) - Animating text, UI elements, icons,...

    Motion Designer (UA Creatives)
    We are looking for a Motion Designer to create UA video creatives for paid channels: Meta, TikTok, YouTube.

    Responsibilities:
    - Creating and animating UA video creatives (6–30 sec)

    - Animating text, UI elements, icons, simple characters

    - Adapting creatives to different formats and placements

    - Fast iterations and revisions based on feedback and performance metrics

    - Close collaboration with marketing and the creative producer


    Requirements
    Must-have:

    - After Effects — confident user (main working tool)

    - Photoshop — basic level (asset preparation, minor edits)

    - Understanding of UA creatives and performance-driven video

    - Ability to create simple, clean, and highly readable animations

    - Strong sense of timing, rhythm, and composition

    - Working with text (hooks, CTAs, visual accents)

    - Exporting videos for Meta / TikTok / YouTube

    - Working with pre-made assets (PSD, Figma, footages)


    Nice-to-have:

    - AI tools for creative production (image/video generation, upscaling, voice, subtitles, etc.)

    - Experience with mobile games or apps

    - Understanding of A/B testing for creatives

    - Basic editing and sound skills (cuts, transitions, music timing)

    - Experience adapting creatives for different markets

     

    We value
    Data-driven mindset and creativity focused on results, not “beauty for beauty’s sake”


    Ability to test ideas quickly and iterate without fear

    Attention to detail and clean execution

    Responsibility and realistic deadlines

    More
  • · 105 views · 18 applications · 5d

    Senior Fullstack Engineer (front-end focused)

    Full Remote · EU · 5 years of experience · English - B2
    We are looking for a Fullstack Engineer to join our growing team. In this role, you will take ownership of building modern, scalable web applications with a strong emphasis on frontend development using React, while also contributing to backend services...

    We are looking for a Fullstack Engineer  to join our growing team. In this role, you will take ownership of building modern, scalable web applications with a strong emphasis on frontend development using React, while also contributing to backend services built with Node.js.

     

    Responsibilities

    • Design, develop, and maintain responsive web applications using React
    • Lead frontend architecture decisions and ensure best practices
    • Build and maintain backend APIs and services using Node.js
    • Collaborate with cross-functional teams to define and implement new features
    • Write clean, maintainable, and well-tested code
    • Optimize application performance, scalability, and security
    • Review code and mentor other engineers
    • Participate in technical discussions and contribute to product decisions

     

    Requirements

    • 5+ years of experience in software development
    • Strong expertise in React and modern frontend tooling
    • Solid experience with Node.js and RESTful APIs
    • Deep understanding of JavaScript / TypeScript
    • Experience with state management, component architecture, and performance optimization
    • Familiarity with databases (SQL and/or NoSQL)
    • Experience with Git and CI/CD pipelines
    • Strong problem-solving and communication skills

     

    Nice to Have

    • Experience with Next.js
    • Knowledge of cloud platforms (AWS, GCP, or Azure)
    • Experience with GraphQL
    • UI/UX sensibility and attention to detail
    • Prior experience leading technical initiatives

     

    More
  • · 28 views · 8 applications · 5d

    Data Scientist

    Full Remote · Countries of Europe or Ukraine · 5 years of experience · English - B2
    Domain: iGaming / Gambling Format: Product company Experience: 5+ years About the Company We are an international product company operating in the gambling sector. Our platform delivers real-time personalization for casino and sportsbook products using...

    Domain: iGaming / Gambling
    Format: Product company
    Experience: 5+ years


    About the Company

    We are an international product company operating in the gambling sector. Our platform delivers real-time personalization for casino and sportsbook products using advanced machine learning. The solution processes live behavioral, transactional, and contextual data to improve player engagement, retention, and overall performance for operators worldwide.


    Our focus is on building production-grade ML systems that directly influence what users see in real time — from game recommendations to personalized content and promotions.


    Role Overview

    We are looking for a Senior Data Scientist to join a product-focused team working on real-time personalization and recommendation systems for iGaming platforms.

    This is a hands-on role that combines modeling, experimentation, and close collaboration with engineering and product teams in a high-load, real-time production environment.


    Main Responsibilities

    • Develop ML-driven features for casino products using supervised learning (regression, ranking, classification)
    • Maintain and improve existing recommendation systems in production
    • Enhance models using gradient boosting and other supervised approaches
    • Perform data cleaning, preprocessing, and feature engineering
    • Design and maintain pre- and post-processing workflows
    • Optimize training and inference pipelines for performance and reliability
    • Integrate ML models into Airflow pipelines in a multi-tenant environment
    • Adapt and configure the solution for different clients (tenants)
    • Collaborate closely with product and engineering teams on experimentation and feature delivery


    As Part of the Team You Will

    • Work cross-functionally with data scientists, engineers, product owners, designers, and researchers
    • Analyze large-scale datasets to extract insights for product and business decisions
    • Propose, implement, and evaluate ML approaches to solve real business problems
    • Support and evolve a recommendation solution used across multiple tenants
    • Influence product strategy through research, experimentation, and data-driven insights into user behavior


    Experience & Education

    • 5+ years of professional experience in data science
    • Degree in a quantitative field (Mathematics, Statistics, Computer Science, or similar)


    Core Skills

    • Strong proficiency in Python and SQL
    • Hands-on experience with data processing tools (Pandas, Polars)
    • Solid engineering skills for building and maintaining scalable ML systems
    • Experience implementing observability in ML pipelines (metrics, logging, alerting)
    • Knowledge of Docker and Kubernetes
    • Strong analytical mindset with the ability to solve loosely defined problems
    • Hands-on experience with supervised ML techniques, including:
      • Regression and ranking models (XGBoost, LightGBM, CatBoost, neural networks)
      • Feature engineering and model evaluation (AUC, NDCG, MSE, uplift metrics)
      • Personalization or recommendation systems
    • Proven experience deploying ML models to production (near real-time or batch)
    • Solid understanding of statistical methods (A/B testing, significance testing)


    Nice to Have

    • Production experience with large-scale recommendation systems
    • Experience with Airflow, Valkey/Redis, FastAPI in production
    • Familiarity with contextual bandits or reinforcement learning
    • Experience with AutoML tools
    More
  • · 78 views · 13 applications · 5d

    Senior React Native Developer

    Full Remote · Countries of Europe or Ukraine · 5 years of experience · English - B2
    Preferably with experience in apple/google TV apps. We already have and Android and iOS apps with video content, and we need to extend them to Apple TV and Google TV without distracting the core team. We’re building these TV apps because we plan to...

    Preferably with experience in apple/google TV apps.

    We already have and Android and iOS apps with video content, and we need to extend them to Apple TV and Google TV without distracting the core team.

    We’re building these TV apps because we plan to apply for the Apple and Google video programs.

     

    application process via test task and then interview with head of engineering

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  • · 117 views · 14 applications · 5d

    Junior Manual QA(iGaming)

    Full Remote · EU · Product · 1 year of experience · English - B1
    Our team provides quality assurance for mobile games developed by the company. We work closely with game designers, developers, and product stakeholders to ensure high quality, stability, and an engaging player experience across different mobile devices...

    Our team provides quality assurance for mobile games developed by the company. We work closely with game designers, developers, and product stakeholders to ensure high quality, stability, and an engaging player experience across different mobile devices and operating system versions.

    We continuously improve our QA processes step by step, focusing on efficient testing practices and product quality.

     

    We are looking for a strong junior Manual QA team member who can perform manual testing of mobile games across different devices and operating system versions.

    We work remotely, with formal meetings kept to a minimum — one weekly stand-up, and the rest scheduled based on work needs.

    Our focus is on maintaining a balance between game quality and business goals to ensure long-term project sustainability and a positive team atmosphere.

    We strive to deliver games that we can truly be proud of :)

     

    Requirements

    • 1+ year of experience in manual QA, preferably in the iGaming industry;
    • Experience in testing mobile applications on real devices and emulators;
    • Good problem-solving and debugging skills, with the ability to investigate and clearly describe issues;
    • Basic understanding of CI/CD processes;
    • Familiarity with Agile development processes;
    • Confident knowledge of Jira, TestRail, Confluence, Postman, and basic Unix shell commands;
    • Basic understanding of containerization technologies (e.g., Docker) is a plus;
    • English level: Intermediate;
    • Technical education background.

     

    Responsibilities

    • Communicate with product owners and developers to ensure alignment with project goals;
    • Participate in product development activities from early stages, providing QA feedback;
    • Identify, document, and track bugs throughout the development process;
    • Develop and maintain test cases, checklists, and bug reports;
    • Test the product across different mobile devices and operating system versions;
    • Collaborate effectively within the team, maintaining a proactive and results-driven approach;
    • Ensure accuracy, responsibility, and attention to detail in all testing activities.

     

    Benefits

    Why Join Us?

    🎰 Be part of the international iGaming industry – Work with a top European solution provider and shape the future of online gaming;

    💕 A Collaborative Culture – Join a supportive and understanding team;

    💰 Competitive salary and bonus system – Enjoy additional rewards on top of your base salary;

    📆 Unlimited vacation & sick leave – Because we prioritize your well-being;

    📈 Professional Development – Access a dedicated budget for self-development and learning;

    🏥 Healthcare coverage – Available for employees in Ukraine and compensation across the EU;

    🫂 Mental health support – Free consultations with a corporate psychologist;

    🇬🇧 Language learning support – We cover the cost of foreign language courses;

    🎁 Celebrating Your Milestones – Special gifts for life’s important moments;

    ⏳ Flexible working hours – Start your day anytime between 9:00-11:00 AM;

    🏢 Flexible Work Arrangements – Choose between remote, office, or hybrid work;

    🖥 Modern Tech Setup – Get the tools you need to perform at your best;

    🚚 Relocation support – Assistance provided if you move to one of our hubs.

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  • · 4 views · 0 applications · 5d

    OpenText Exstream Senior Developer

    Full Remote · Poland · 5 years of experience · English - B2
    Contract period: 23.02.2026 – 31.12.2030 Experience: 5+ years Location: Remote from Poland Job Overview We are looking for a senior, results-driven OpenText Exstream Specialist to design and deliver advanced multi-channel document solutions for an...

    Contract period: 23.02.2026 – 31.12.2030
    Experience: 5+ years
    Location: Remote from Poland
     

    Job Overview

    We are looking for a senior, results-driven OpenText Exstream Specialist to design and deliver advanced multi-channel document solutions for an enterprise-level project. The role requires deep hands-on expertise with OpenText Exstream, strong skills in data transformation, REST API development, and CI/CD automation using Jenkins and Groovy.


    The specialist will work with multiple document output formats (PS, PDF, HTML) and actively contribute to building high-performance, scalable document generation solutions.


    Main Responsibilities

    • Develop and deliver multi-channel document solutions using OpenText Exstream
    • Integrate Exstream with enterprise platforms and core business systems
    • Upgrade, refactor, and optimize legacy templates using Exstream frameworks
    • Build, maintain, and improve CI/CD pipelines using Jenkins and Groovy
    • Diagnose, troubleshoot, and optimize performance in complex environments
    • Collaborate closely with business stakeholders to translate requirements into technical solutions
    • Mentor junior team members and promote engineering best practices


    Technical Requirements (Must have)

    • Strong commercial experience with OpenText Exstream
    • Solid expertise in multi-channel document generation and composition
    • Experience working with REST APIs
    • Hands-on experience with CI/CD pipelines
    • Practical knowledge of Jenkins and Apache Groovy
    • Strong understanding of data transformation processes
    • Experience working with multiple output formats (PS, PDF, HTML)
    • Ability to work independently and deliver outcome-oriented solutions


    Preferred Skills

    • Solid understanding of document structure, architecture, and composition
    • Experience working with XML and JSON data formats
    • Exposure to related platforms and tools such as DocuShare and Eloqua
    • Familiarity with Agile development methodologies
    • Strong English communication skills, both written and spoken


    Required Technical Skills

    • OpenText
    • REST API
    • CI/CD
    • Jenkins
    • Groovy


    Location & Work Model

    • Remote from Poland
    • Preferred location: Warsaw, Poland (alternative locations may be considered)
    • Hybrid model: approximately 30% office / 70% remote, subject to agreement


    Project Information

    Profiles are uploaded directly to the client’s system. To proceed with the application, please ensure the following information is provided:

    • CV must include full first and last name
    • CV must list all companies where you have previously worked
    • Notes section must include:
      • Your nationality
      • Visa or work permit validity date (if applicable)
      • Day and month of birth (required to generate an individual code)


    All candidates must agree to undergo a mandatory identification verification process. This includes a one-time online verification of a government-issued photo ID (passport, ID card, or driver’s license).

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