Frontend Game Engineer

🏢 Summary: Frontend Engineer role focused on leading and evolving the architecture of digital draw game clients. Responsible for building and optimizing scalable, event-driven frontend systems using a modern React and TypeScript stack, enabling real-time gameplay and backend communication. The position includes ownership of client frameworks, build pipelines, and technical alignment with external studios. 🗂️ Requirements: 5+ years developing complex frontend applications, Strong experience with React, Strong experience with TypeScript, Hands-on experience with HTML5 game technologies, Experience building interactive web applications, Strong knowledge of state-driven systems, Strong knowledge of event-driven systems, Deep understanding of asynchronous programming, Proficiency with Vite, Experience with CSS frameworks, Experience with automated testing environments, Experience with Git and version control workflows 📃 Skills: React, TypeScript, Vite, HTML5, Three.js, PlayCanvas, JavaScript, Tailwind, CSS, Git, Testing, Asynchronous 🏢 Description: Frontend developer We are looking for an experienced Engineer to take technical ownership of the frontend architecture powering our digital draw games. In this role, you will design and maintain the core client frameworks that enable the integration of various game categories with our platform, defining how games handle lifecycles, player interactions, and real-time backend communication. Responsibilities: Architectural Leadership: Lead the evolution of frontend frameworks and reusable client foundations to support diverse game paradigms. Core Development: Build and optimize frontend systems using a modern stack including React, TypeScript, and Vite . Communication Patterns: Implement robust, event-driven client-server interactions for both on-demand and real-time gameplay. Technical Translation: Turn complex gameplay flows, UX layouts, and production specs into scalable, high-performance implementations. External Partnership: Act as a technical guide for external development studios, ensuring their games align with our architectural standards. Standards & Quality: Enforce coding standards, manage build pipelines, and identify technical bottlenecks or risks early in the lifecycle. Requirements: 5+ years of experience developing complex frontend applications with a focus on React and TypeScript . Hands-on experience with HTML5 game technologies , such as Three.js or PlayCanvas , and building interactive web applications. Strong background in state-driven and event-driven systems , including a deep understanding of asynchronous programming. Proficiency with modern tooling, including Vite, CSS frameworks (like Tailwind) , and automated testing environments. Collaboration Skills: Proven ability to work alongside designers and backend teams to translate product concepts into technical reality. Workflow Expertise: Solid experience with Git , version control practices, and managing collaborative development workflows.

🏢 Summary: Senior Frontend Developer role focused on designing, building, testing, deploying, and maintaining a React and TypeScript-based frontend system integrated with backend services and mobile apps. The position involves frontend architecture design, production support, and working within Agile teams to deliver scalable solutions used across multiple countries. 🗂️ Requirements: 5+ years of production experience with React, Strong hands-on experience with TypeScript, Strong understanding of software engineering principles, Experience with testing and design systems, Knowledge of REST APIs, Familiarity with DBMS such as PostgreSQL or DynamoDB, Degree in Computer Science, Experience working with Agile methodologies (SCRUM or Kanban), Experience using AI tooling 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, REST, PostgreSQL, DynamoDB, Testing, DesignSystems, Agile, SCRUM, Kanban, AI 🏢 Description: About the role You will need to be an expert in frontend development with a thorough understanding of the technologies involved. Strong frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: React, TypeScript, JavaScript, HTML, CSS, Cypress, Playwright, Node.js, REST APIs, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a frontend system written in React & TypeScript Design frontend software architecture with connection to backend services and mobile apps Deploying and maintaining frontend / backend applications Maintaining system on production used by consumers from several European countries Debugging issues Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Recruiting and mentoring new team members Required qualifications: 5+ years of production software development experience in React Strong understanding of software engineering principles, testing, design systems Solid hands-on experience in TypeScript Know-how of REST APIs Familiarity with DBMS like PostgreSQL, DynamoDB Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Exposure to backend development (can be in TypeScript) Some experience or interest in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc.

🏢 Summary: Senior Frontend Engineer role focused on owning and evolving the frontend architecture for global-scale digital draw games. The position involves building reusable client frameworks, implementing real-time event-driven systems, and developing interactive web-based game applications. You will guide external studios and ensure scalable, high-quality frontend implementations using modern tooling. 🗂️ Requirements: 5+ years of experience with React and TypeScript, Experience building complex frontend applications, Familiarity with HTML5 game technologies (e.g., Three.js or PlayCanvas), Experience developing interactive or real-time web applications, Experience with state-driven or event-driven frontend architectures, Understanding of asynchronous programming and real-time client-server communication, Experience with modern frontend tooling (e.g., Vite, CSS frameworks, automated testing), Proficiency with Git and collaborative version control workflows, Ability to translate UX and product requirements into technical implementations, Experience working with distributed teams or external development studios 📃 Skills: React, TypeScript, JavaScript, HTML5, Three.js, PlayCanvas, Vite, Tailwind, CSS, Git, REST, WebSockets, Testing 🏢 Description: At Pretius , we are looking for Senior Frontend Engineer to take technical ownership of the frontend architecture powering our digital draw games for global-scale platform in the field of gaming and lotteries. Project / Role Own and evolve the frontend architecture and technical frameworks used across multiple game clients. Design and maintain reusable client foundations and game category frameworks supporting different game paradigms. Develop and maintain frontend systems using React, TypeScript, Vite, and modern CSS frameworks. Implement and maintain event-driven client-server communication patterns for real- time and on-demand gameplay flows. Translate gameplay flows, UX layouts, and production specifications into scalable frontend implementations. Support and guide external development studios building game experiences on top of the client frameworks. Maintain and manage source code repositories, versioning practices, and build pipelines for game clients. Requirements 5+ years of experience developing complex frontend applications using React and TypeScript. Familiarity with HTML5 game development technologies, such as Three.js or PlayCanvas. Proficiency in building interactive or real-time graphical applications for the web. Experience working with external development studios or distributed engineering teams. Strong experience building state-driven or event-driven frontend systems. Solid understanding of asynchronous programming and real-time client-server interactions. Experience with modern frontend tooling such as Vite, CSS frameworks (e.g., Tailwind), and automated testing frameworks. Strong experience with Git, version control, and collaborative development workflows. Ability to translate product and UX concepts into robust technical implementations. Experience collaborating with designers, backend engineers, and product teams. Strong problem-solving and communication skills. Experience working in regulated, transactional, or high-reliability environments is a plus. What do we offer? We focus on long-term relationships based on fair principles and reliability. Co-financing of the Multisport card and Medicover private healthcare. Modern office available. Team bonding activities, internal courses, conferences, certifications.

🏢 Summary: Frontend Developer role focused on designing, developing, testing, deploying, and maintaining React and TypeScript applications used across multiple European markets. The position involves working with modern frontend technologies, integrating with REST/GraphQL APIs, and supporting production systems. The role requires strong software engineering expertise and collaboration within Agile teams. 🗂️ Requirements: 5+ years of production experience with React, Strong proficiency in TypeScript, Strong understanding of software engineering principles, Experience with testing and design systems, Experience with REST APIs, Experience with GraphQL APIs, Familiarity with PostgreSQL or DynamoDB, Computer Science degree, Experience with AI tooling, Experience working in Agile (SCRUM or Kanban) environments 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, Cypress, Playwright, Node.js, REST, GraphQL, AWS, Terraform, PostgreSQL, DynamoDB, Docker, Kubernetes, Jenkins, CircleCI, GitlabCI, Datadog 🏢 Description: About the role You will need to be an expert in frontend development with a thorough understanding of the technologies involved. Strong frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: React, TypeScript, JavaScript, HTML, CSS, Cypress, Playwright, Node.js, REST/GraphQL APIs, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a frontend system written in React & TypeScript Deploying and maintaining frontend / backend applications Maintaining system on production used by consumers from several European countries Debugging issues Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Required qualifications: 5+ years of production software development experience in React Strong understanding of software engineering principles, testing, design systems Solid hands-on experience in TypeScript Know-how of REST/GraphQL APIs Familiarity with DBMS like PostgreSQL, DynamoDB Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Exposure to backend development (can be in TypeScript) Some experience or interest in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc.

🏢 Summary: Frontend Developer role focused on building and maintaining scalable, high-quality user interfaces using TypeScript and React. The position involves close collaboration with designers, backend developers, and product stakeholders to deliver performant and maintainable user-facing features. The offer includes hybrid work, professional growth opportunities, and a comprehensive social benefits package. 🗂️ Requirements: Extensive experience building large, scalable frontend applications, Strong proficiency in TypeScript, Strong proficiency in React, Solid understanding of frontend architecture, Knowledge of design patterns, Ability to design complex user interfaces, Experience ensuring code scalability and performance optimization 📃 Skills: TypeScript, React, JavaScript, HTML, CSS 🏢 Description: We are looking for a frontend developer who is passionate about designing and building high-quality, intuitive user interfaces. In this role, you will collaborate closely with engineers, designers, and product stakeholders to deliver user-facing features across a range of products and internal tools. We value developers who actively contribute to shaping solutions - thinking through usability, performance, and long-term maintainability. You should feel comfortable discussing ideas, proposing improvements, and helping refine both technical and product decisions. In our company, frontend developers are expected to combine attention to detail, strong collaboration skills, and a proactive mindset. We value people who take ownership of their work, communicate clearly, and continuously look for ways to improve the user experience and the systems behind it. Key Responsibilities: Develop and maintain high-quality frontend applications using TypeScript and React . Design complex user interfaces. Ensure the application’s code is scalable, consistent, maintainable and optimised for performance. Collaborate closely with UX/UI designers Collaborate closely with backend developers and BA/product managers Take ownership of features and technical decisions, diving into details to ensure high-quality results. Requirements: A proactive problem solver and analytical thinker . Keen attention to detail and willingness to dive deep into technical challenges. Extensive experience in building large, consistent, maintainable and scalable frontend applications. Solid understanding of frontend architecture and design patterns. Strong proficiency in TypeScript and React . Additional information: Working for one of the top gambling companies in the world Opportunity to influence the quality of the products, improve process and implement your ideas Social package, including sport compensation & medical insurance Professional growth Free parking space (hybrid type of work- 3 days from the office, 2 days from home) Sport activities, parties, and team buildings

🏢 Summary: Frontend Developer role focused on building and maintaining modern web applications using React.js. The position involves creating responsive, user-centered interfaces, integrating RESTful APIs, and delivering scalable, maintainable frontend solutions. Emphasis is placed on performance, accessibility, and clean code standards. 🗂️ Requirements: 3–4+ years commercial frontend development experience, Strong hands-on experience with React.js, Proficiency in modern JavaScript (ES6+), Solid knowledge of HTML5 and CSS3, Experience with responsive design principles, Experience integrating RESTful APIs, Understanding of UI/UX best practices, Familiarity with state management, Experience with component-based architecture, Experience with Git and collaborative workflows, Ability to write scalable and maintainable code, Strong debugging and problem-solving skills 📃 Skills: React, JavaScript, ES6, HTML5, CSS3, REST, API, Git, UI, UX 🏢 Description: Responsibilities Develop and maintain modern web applications using React.js . Create responsive and intuitive user interfaces with a strong focus on usability and user experience. Connect frontend applications with RESTful APIs and backend systems. Translate business and design requirements into scalable frontend solutions. Write clean, reusable, and maintainable code following frontend development standards. Collaborate closely with designers, product owners, and backend engineers. Optimize application performance, accessibility, and cross-browser compatibility. Requirements 3–4+ years of commercial experience in frontend development. Strong hands-on experience with React.js and modern JavaScript (ES6+). Solid knowledge of HTML5, CSS3, and responsive design principles. Experience integrating APIs and working with backend services. Understanding of UI/UX best practices and user-centered design. Familiarity with state management and component-based architecture. Experience with Git and collaborative development workflows. Ability to write efficient, scalable, and well-structured frontend code. Strong problem-solving and debugging skills.

🏢 Summary: Frontend-focused role developing and maintaining scalable React applications with TypeScript, integrated with Node.js backend services and data pipelines. The position involves building production-grade, data-driven solutions, contributing to architecture decisions, and optimizing complex UI workflows. It offers work on a high-impact product within a modern TypeScript and React ecosystem. 🗂️ Requirements: Strong proficiency in React, Strong proficiency in TypeScript, Experience building large-scale production applications, Experience with Node.js and API integrations, Experience with data-driven applications, Understanding of modern frontend architecture, Knowledge of testing practices, Ability to work in cross-functional teams 📃 Skills: React, TypeScript, Node.js, APIs, Microservices, Snowflake, Testing, Architecture, Data, Pipelines 🏢 Description: ✅ Your responsibilities: Develop and maintain scalable React applications with TypeScript across the full frontend stack Collaborate closely with backend engineers, data teams, and product managers to deliver high-quality solutions Ensure type safety, code quality, and maintainability throughout the application Participate in design and architecture discussions, proposing improvements to frontend patterns and integrations Troubleshoot and optimize complex UI and data-intensive workflows Support knowledge sharing and mentor junior developers when needed 🧠 Our requirements: Strong proficiency in React and TypeScript , with experience building large-scale, production-grade applications Familiarity with Node.js backend development and integration with APIs or microservices Experience working with data-driven applications , ideally with Snowflake, data lakes, or pipelines Solid understanding of modern frontend architecture, testing, and best practices Ability to communicate effectively in a cross-functional, high-stakes environment Proactive, self-motivated, and capable of delivering high-quality solutions under tight timelines 🌟 What we offer: Opportunity to work on a premium, high-profile product with global business impact Exposure to a modern TypeScript/React ecosystem, integrated with backend Node.js services and advanced data pipelines Collaborative environment with experienced engineers and product leaders Career growth and technical mentorship in a cross-functional team Competitive employment package and benefits.

🏢 Summary: Mid-level Frontend React Developer role focused on building and scaling high-performance web applications in the lottery domain. The position involves developing modern, responsive user interfaces, managing application state, and integrating with REST APIs within a collaborative team environment. 🗂️ Requirements: Commercial experience as Mid-level Frontend Developer in React ecosystem, Strong knowledge of React.js, Strong knowledge of TypeScript, Strong knowledge of JavaScript ES6+, Experience with HTML5, Experience with CSS3, Experience with SCSS, Practical experience with React Hooks, Experience with state management (Redux, Zustand, or ContextAPI), Experience with REST API integration, Understanding of Responsive Web Design, Experience with Git and GitHub 📃 Skills: React, TypeScript, JavaScript, HTML5, CSS3, SCSS, Redux, Zustand, ContextAPI, Git, GitHub, REST, RWD, Storybook, Cypress, Next.js, ReactNative, Three.js, WCAG, AgilityCMS, AWS, Azure 🏢 Description: We are seeking a Frontend React Mid Developer to build and scale modern, high-performance frontend applications for a client in the lottery industry. Our expectations Commercial experience as a Frontend Developer (Mid level) specializing in the React ecosystem; Strong knowledge of React.js, TypeScript, and JavaScript (ES6+); Knowledge of and experience working with HTML5, CSS3, and SCSS; Practical experience with React Hooks; Experience in application state management (Redux, Zustand, or Context API); Proficiency with Git version control and the GitHub platform; Experience in REST API integration, as well as a solid understanding of Responsive Web Design and component-driven development; English language skills at a level that allows fluent communication (B2). Readiness to work in a hybrid workmodel in a client's office (Warsaw), fostering a collaborative and engaging team environment. Welcome Skills Familiarity with component testing and documentation tools (Storybook, Cypress); Experience with the Next.js framework or React Native technology; Knowledge of 3D graphics libraries (Three.js) and accessibility standards (WCAG); Experience working with Headless CMS systems (e.g., Agility CMS); Basic knowledge of or exposure to cloud environments (AWS or Azure). Key tasks Create and develop frontend applications using the React library, TypeScript, and modern JavaScript (ES6+); Design and implement reusable UI components and efficiently manage application states; Collaborate with the backend team and integrate applications with APIs (REST API); Create responsive and polished user interfaces (RWD) using HTML5, CSS3, and SCSS; Use the Git/GitHub version control system in daily team collaboration; Maintain high code quality, apply best programming practices, and participate in the code review process; Collaborate with the cross-functional team (developers, testers, designers) to optimize application performance.

🏢 Summary: Contract role focused on leading end-to-end development of complex frontend features using TypeScript and React for large-scale enterprise applications. The position emphasizes scalable architecture, advanced state management, performance optimization, security, and integration with backend services. Involves contributing to Node.js services, CI/CD pipelines, testing strategies, and ensuring high-quality, accessible, and secure UI delivery. 🗂️ Requirements: Strong experience with TypeScript and React, Experience delivering complex frontend features end-to-end, Experience designing scalable frontend architectures, Expertise in state management libraries (Redux, Zustand, React Query), Experience integrating with APIs and BFF layers, Proficiency with Node.js, Experience with performance optimization techniques, Knowledge of WCAG and semantic HTML, Experience with secure coding practices and authentication flows, Experience with CI/CD pipelines and automated testing, Strong debugging and production issue resolution skills, Experience working in Agile environments 📃 Skills: TypeScript, React, Redux, Zustand, ReactQuery, Node.js, HTML, CSS, WCAG, CI/CD, REST, API, BFF, Testing, Jest, Cypress, Security, OAuth, PCI, Cloud, CDN 🏢 Description: Job description: * Own end-to-end delivery of complex frontend features using TypeScript and React, from design through production. * Design scalable, maintainable architectures for large enterprise applications (modularization, code splitting, performance). * Lead state management strategy (e.g., Redux, Zustand, React Query), ensuring predictable data flow and performance. * Build and integrate with APIs and BFF layers; contribute to Node.js services where needed. * Translate product and design requirements into high-quality, accessible UI (WCAG-compliant, semantic HTML, responsive CSS). * Drive performance optimization (rendering, bundle size, network usage, caching). * Establish and enforce coding standards, patterns, and best practices across the codebase. * Conduct code reviews, mentor engineers, and raise the overall engineering bar. * Apply strong, proactive debugging practices to identify, isolate, and resolve issues early across environments. * Diagnose and resolve complex production issues using structured debugging, logging, and observability tools. * Embed security best practices into development (secure coding, input validation, auth flows, data protection), and ensure compliance—especially for payment-related flows. * Collaborate with backend, SRE, security, and product teams to ensure reliable, secure, and scalable solutions. * Contribute to CI/CD pipelines, testing strategies (unit, integration, e2e), and release processes. * Participate actively in Agile ceremonies; break down work, estimate, and deliver iteratively. Nice to Have / Preferred Experience * Experience in payments domain (checkout flows, PCI considerations, transaction handling). * Full-stack exposure with Node.js, API design, and BFF patterns. * Familiarity with cloud platforms and edge/CDN strategies. * Experience with design systems and component libraries at scale. Period from: 2026-05-25 Period to: 2026-12-31

🏢 Summary: The offer is for a Front End Developer responsible for building and maintaining responsive, full-stack applications with a strong focus on modern frontend architecture. The role involves working closely with designers and backend engineers to deliver scalable, high-performance digital experiences across web, desktop, and mobile platforms. It requires expertise in React, TypeScript, .NET Core, and modern tooling within a collaborative, partially or fully remote B2B environment. 🗂️ Requirements: Experience with React.js 18, Experience with TypeScript, Experience with .NET Core, Experience with RESTful APIs, Experience with MongoDB or CosmosDB, Experience with SQL Server or MySQL, Experience with Git, Experience with CI/CD pipelines, Experience with cloud platforms, Experience with Entity Framework, Experience with Tailwind CSS, Experience with Redux Toolkit, Experience with Vite or Webpack, Experience with micro-frontend architecture, Experience with Storybook, Experience with monorepos (NX, Turborepo or Lerna), Experience with Vitest 📃 Skills: React, TypeScript, .NET, REST, MongoDB, CosmosDB, SQL, MySQL, Git, CI/CD, Cloud, EntityFramework, Tailwind, Redux, Vite, Webpack, Storybook, NX, Turborepo, Lerna, Vitest 🏢 Description: Description The Front End Developer needs to be able to transform and implement engaging user interfaces. You’ll work closely with UI/UX designers and backend engineers to bring high-quality digital experiences to life, creating seamless user experiences. Responsibilities Implement responsive User Interfaces from design prototypes across web, desktop and mobile applications Ensure responsive Build and maintain full-stack applications using modern frameworks Collaborate with designers, developers, and stakeholders Optimize applications for speed, scalability, maintainability and security Maintain frontend codebases using modern JS framework Requirements Experience in React.js 18 with Typescript for building type-safe component-based UIs for enhanced developer experience, type checking and maintainability Experience in latest MS .NET Core Experience with RESTful APIs Experience with document databases, like MongoDB or CosmoDB Experience with relational databases, like SQL server or MySQL Familiarity with Git, CI/CD pipelines, and cloud platforms Experience with Entity Framework Experience with Tailwind CSS: Utility-first CSS framework for rapid and responsive UI styling, enabling consistent and customizable design systems Experience in Redux Toolkit: State management library for predictable and maintainable global state handling, leveraging RTK Query for data fetching and caching Experience in next generation FE tooling and micro-frontend architecture, such as Vite and Webpack and their respective module federation, for fast development, building, and hot module replacement (HMR), optimized for modern JavaScript frameworks, and implementation of modular, independently deployable frontends using microfrontend patterns, enabling team autonomy and scalable development, and dynamic module loading and sharing Experience in Storybook:, for component-driven development and documentation tool for building, testing, and showcasing UI components in isolation, ensuring reusable and well-documented component libraries Experience in mono-repos, such as NX, Turborepo or Lerna, for efficient code sharing, dependency management, and consistent tooling across multiple applications and libraries Experience in Vitest, a fast, Vite-powered unit testing framework for testing React components, hooks, and utilities in a type-safe environment. Includes support for Jest-compatible APIs and mocking Nice to have Prior experience in the EdTech domain (e-learning platforms, digital classrooms, LMS) Knowledge of learning science, instructional design, or accessibility standards (e.g., WCAG) Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration Working conditions Partly / fully remote B2B contract