Frontend Developer

🏢 Summary: Senior Frontend Architect role focused on building and evolving scalable frontend architecture for multiple HTML5 game clients. The position involves developing reusable frameworks, implementing real-time client-server communication, and delivering interactive web-based game experiences using modern frontend technologies. The role also ensures architectural standards, performance, and compliance across game clients. 🗂️ Requirements: 5+ years experience with React and TypeScript, Experience with HTML5 game technologies (Three.js or PlayCanvas), Experience building interactive or real-time web applications, Strong knowledge of event-driven or state-driven frontend architectures, Solid understanding of asynchronous programming and real-time client-server communication, Experience with Vite and modern CSS frameworks, Experience with automated frontend testing frameworks, Strong experience with Git and version control workflows, Ability to design scalable frontend architectures 📃 Skills: React, TypeScript, JavaScript, HTML5, CSS, Vite, Tailwind, Three.js, PlayCanvas, Git, WebSockets, Testing 🏢 Description: Key responsibilities: 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 realtime 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. Define and enforce frontend architecture patterns, testing practices, and coding standards. Collaborate with product, design, backend, and QA teams to ensure smooth integration and reliable player experiences. Identify architectural risks, performance bottlenecks, and technical dependencies early and drive resolution. Ensure all game clients comply with technical, operational, and regulatory requirements Reguirements: 5+ years of experience developing complex frontend applications using React and TypeScript. Experience with HTML5 game development technologies, such as Three.js or PlayCanva s. Experience 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. Nice to have: Experience working in regulated, transactional, or high-reliability environments is a plus. Client: A global leader with a sharp focus on lottery solutions. A confident step forward building on a long history of delivering safe and secure technology, demonstrating strong commitment to customers as a dedicated lottery service provider. Leveraging collective insight, experience, and expertise to create reliable and engaging solutions that help lottery clients achieve objectives, meet player needs, and deliver meaningful benefits to communities.

🏢 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 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 owning the full frontend experience, building engaging, high-performance, game-like interactions using a modern React stack. The position involves designing polished UI components, implementing real-time features, and optimizing animation and application performance. Strong emphasis on reusable architecture, frontend performance, and iGaming/gaming-driven product experiences. 🗂️ Requirements: Strong experience with React 18 and modern frontend ecosystem, Ability to design UI without predefined mockups or Figma files, Expertise in component architecture and reusable component design, Experience with responsive and mobile-first UI development, Strong skills in complex animations and animation performance optimization, Experience building real-time features with sockets, Ability to manage and optimize frontend state architecture, Experience improving code quality, structure, and performance, Experience with frontend testing practices, iGaming or gaming industry experience 📃 Skills: React, Vite, Redux, ReactRouter, Tailwind, FramerMotion, GSAP, Three.js, ReactThreeFiber, Socket.io, JavaScript, HTML, CSS 🏢 Description: We're looking for a frontend developer who can take full ownership of the frontend experience. You should be able to design polished components, build fast and playful interactions, and turn ideas into highly engaging product moments. Our stack is mainly React 18, Vite, Redux Toolkit, React Router, Tailwind, Framer Motion/GSAP, Three.js/React Three Fiber, socket.io , and a mix of charting, particles, sound, and animation libraries. - You should be strong at component architecture, responsive UI, animation performance, real-time experiences, and building in-house games like our current boxes, battles, dice, race, and jackpot flows. Ideally, you think like both a product designer and frontend engineer: making the app feel exciting, smooth, mobile-friendly, and reliable while owning everything from UI structure to frontend performance. - You could also help improve the codebase by making components more reusable, tightening design consistency, reducing duplicated UI logic, improving animation and bundle performance, adding stronger frontend testing, cleaning up large files, and gradually introducing clearer patterns around state, sockets, forms, and game UI architecture. It's really important that the candidate is a naturally great designer, who can design without references/pre made designs/figmas, along with being a really good animator. IMPORTANT: iGaming/Gaming experience is highly preferred. Do you have iGaming or Gaming experience? Please share it in your application message.

🏢 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: 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 Front-End Software Architect role focused on modernizing and scaling a large enterprise web platform through micro-frontend architecture and React-based solutions. The position combines hands-on development with architectural leadership, driving migration from legacy systems and defining front-end standards across teams. You will design a shared App Shell, improve performance and security, and guide technical direction while staying close to the code. 🗂️ Requirements: 8+ years of front-end development experience, Expert knowledge of JavaScript, Expert knowledge of TypeScript, Hands-on experience with micro-frontends architecture, Experience modernizing legacy front-end systems, Strong knowledge of scalable and high-performance web applications, Advanced knowledge of modern build tools, Experience with unit and end-to-end testing, Experience with design systems and component-driven development, Strong CSS knowledge including preprocessors, Experience with CI/CD pipelines 📃 Skills: JavaScript, TypeScript, React, Webpack, Vite, Rollup, Jest, TestingLibrary, Vitest, Storybook, SASS, LESS, CSS, CI/CD, GitHubActions, Jenkins, Terraform, ModuleFederation, Microfrontends 🏢 Description: We’re looking for an experienced Front-End Software Architect to help modernize and scale a large enterprise web platform. In this role, you’ll work hands-on with modern front-end technologies, design and implement a micro-frontend App Shell architecture, and support the migration from legacy systems to modern, React-based solutions. You’ll have a strong technical voice, influence architectural decisions, and help shape front-end standards used across multiple teams — all while staying close to the code. Responsibilities: Design and implement a scalable micro-frontend architecture, including a shared App Shell and reusable component libraries. Lead the migration of features from legacy applications (e.g. .NET-based systems) to modern React solutions. Collaborate closely with full-stack and platform engineers to define patterns for module federation, routing, and inter-application communication. Establish and promote front-end standards, architectural patterns, and best practices across teams. Define integration approaches for shared authentication, login flows, routing across multiple apps on the same domain, and inter-app communication. Drive improvements in performance, security, observability, and reliability across distributed front-end systems. Review code, mentor other engineers, and contribute to a culture of high engineering standards and continuous improvement. Requirements: 8+ years of experience in front-end development, with a strong technical background and experience influencing architecture. Expert-level knowledge of JavaScript and TypeScript. Hands-on experience designing and delivering micro-frontends and modernizing legacy front-end architectures. Strong understanding of building scalable, high-performance web applications. Experience aligning technical solutions with business and delivery goals. Advanced knowledge of modern build tools such as Webpack, Vite, or Rollup. Solid testing experience, including unit and end-to-end testing (Jest, Testing Library, Vitest, or similar). Deep understanding of design systems and component-driven development (Storybook, design tokens). Strong CSS knowledge, including preprocessors (SASS / LESS) and responsive layouts. Experience working with CI/CD pipelines and tools like GitHub Actions, Jenkins, or Terraform. Familiarity with backend technologies and microservices architectures is a plus. Nice to have: Knowledge of web accessibility standards (WCAG) and internationalization (i18n). Experience building offline-ready applications and implementing graceful degradation strategies.

🏢 Summary: Frontend Developer role focused on building and evolving a large-scale, high-performance administrative web platform using React. The position emphasizes scalable architecture, code quality, automated testing, and integration with backend services. You will contribute to architectural decisions and maintain robust, maintainable frontend solutions in an enterprise environment. 🗂️ Requirements: 5+ years frontend development experience, Strong commercial experience with React, Expert knowledge of modern JavaScript (ES2024+), Advanced TypeScript proficiency, Experience integrating REST APIs, Hands-on experience with Webpack and Babel, Proficient with npm or yarn, Strong Git experience, Experience designing scalable frontend architectures, Experience with automated testing (unit, component, E2E) using Jest, React Testing Library, Cypress 📃 Skills: React, JavaScript, TypeScript, REST, Webpack, Babel, npm, yarn, Git, Jest, Cypress, GraphQL 🏢 Description: We are looking for an experienced Frontend Developer passionate about building scalable, high-performance user interfaces. In this role, you will contribute to the development and evolution of a large-scale administrative web platform, ensuring high code quality, maintainability, and performance. Key Requirements 5+ years of experience in frontend development, preferably in complex or enterprise-scale environments Strong commercial experience with React (state management, hooks, component lifecycle, application architecture) Expert knowledge of modern JavaScript (ES2024+) , including asynchronous programming and modular architecture Solid hands-on experience with TypeScript (advanced typing, generics, large-scale React integration) Experience integrating frontend applications with REST APIs (HTTP methods, authentication, data handling) Practical knowledge of build tools such as Webpack, Babel, npm/yarn Strong experience with Git (branching strategies, code reviews, conflict resolution) Experience designing and implementing scalable and high-performance frontend architectures Ability to write automated tests using Jest, React Testing Library, and Cypress Nice to Have Experience working with GraphQL in React-based applications Understanding and practical use of software design patterns Responsibilities Develop and enhance a complex React-based administrative platform Contribute to frontend architecture decisions and scalability improvements Maintain high standards of code quality (Clean Code, SOLID principles) Write and maintain unit, component, and end-to-end tests Collaborate with cross-functional teams in an agile delivery environment

🏢 Summary: Senior Frontend Engineer role focused on driving architectural direction and building scalable, high-quality frontend solutions using React and TypeScript. The position involves designing core features, shaping best practices, improving CI/CD and observability, and mentoring engineers. The engineer will collaborate cross-functionally to deliver performant, maintainable, and accessible user experiences. 🗂️ Requirements: Extensive experience with large-scale frontend applications, Strong hands-on experience with React, Strong hands-on experience with TypeScript, Deep understanding of web architecture and component design, Experience with performance optimization and responsive UI patterns, Solid knowledge of build tools, Experience with version control systems, Experience with CI/CD pipelines, Ability to design scalable and maintainable frontend solutions, Experience contributing to testing and deployment processes 📃 Skills: React, ReactNative, TypeScript, JavaScript, CI/CD, Git, HTML, CSS, Web, Serverless, Cloud 🏢 Description: Senior Frontend Engineer We’re looking for a seasoned engineer who combines deep hands-on skills with the ability to guide architectural direction, influence technical strategy, and mentor others. About the Role Your work will directly shape how thousands of businesses worldwide interact with the clients solutions — improving user experiences, driving customer satisfaction, and helping companies save valuable time. As part of this role, you will be making technical decisions, mentor colleagues, and contribute to setting best practices that strengthen frontend engineering across the company. You’ll collaborate closely with product managers, UX designers, and backend engineers to turn ideas into well-engineered solutions — balancing product velocity with long-term maintainability. Key Responsibilities Drive architectural and technical direction for frontend solutions across product suite. Design and implement core features and shared components using React/React Native, and TypeScript. Evaluate and introduce new technologies, patterns, and tools that improve scalability, maintainability, and performance. Contribute to the design system and ensure consistent, accessible, and performant user experiences. Work closely with other engineers to review code, share knowledge, and improve development practices. Act as a technical mentor — helping others grow through feedback, guidance, and collaboration. Ensure strong build, deployment, and testing processes that support rapid, reliable delivery. Contribute, or lead, broader engineering initiatives such as CI/CD improvements, observability, and cross-product consistency. Key Requirements Extensive experience in building and maintaining large-scale frontend applications. Deep understanding of web architecture, component design, performance optimization, and responsive UI patterns. Strong hands-on experience with React and TypeScript. Solid knowledge of build tools, version control, and CI/CD pipelines. A pragmatic mindset — able to balance innovation with delivery. Excellent collaboration and communication skills. Passion for technical craftsmanship and for helping others grow through mentorship and example. Nice to Have Experience in designing intuitive user interfaces. Familiarity with cloud services and serverless architectures. Knowledge of accessibility standards in web development. Location: København Allocation: Full-time. Start date: ASAP End date: 3-6 months

🏢 Summary: The role is for a Senior Frontend Developer responsible for designing, developing, testing, deploying, and maintaining Angular-based frontend systems used in production across multiple European countries. The position involves working with modern frontend technologies, integrating with APIs, and collaborating in Agile teams to deliver new features and maintain high-quality applications. 🗂️ Requirements: 5+ years of production experience with Angular, Strong expertise in TypeScript, Experience with reactive programming using RxJS, Understanding of software engineering principles and testing practices, Experience with REST or GraphQL APIs, Familiarity with PostgreSQL or DynamoDB, Experience maintaining production systems, Degree in Computer Science, Experience working with Agile methodologies (SCRUM or Kanban), Proficiency in English 📃 Skills: Angular, TypeScript, JavaScript, RxJS, HTML, CSS, Cypress, Playwright, Node.js, REST, GraphQL, AWS, Terraform, PostgreSQL, DynamoDB 🏢 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: Angular, TypeScript, JavaScript, RxJS, HTML, CSS, Cypress, Playwright, Node.js, REST/GraphQL APIs, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a frontend system written in Angular & 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 Angular Skilled within reactive programming patterns (RxJS) 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 AI Tooling usage Computer Science degree 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.