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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - Frontend - **Company:** ESL FACEIT GROUP - **Location:** London, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Computing Platforms, Video Game Development, OAuth, Open Source Technology, OpenID, Next.js, Systems Integration, TypeScript, Web Applications, WebSocket, Enterprise Software Applications, ReactJS, Large Language Models, Front End Software Development, React Redux - **Published:** May 27, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=702afbfccb9fae7e ## About the Role Do you have experience in TypeScript?, * Building large-scale applications with React, Redux and Next.js; * Good demonstrable ability with recognised open-source languages; * Knowledge of relevant testing frameworks. * Experience with WebSockets and real-time messaging; * Continue to learn new technologies and frameworks; * Work with large complex applications. Requirements Core Technical Expertise * Indepth working and hands on knowledge of frontend platform technologies and systems; * Possesses an excellent understanding of system and solution architectures; * Exhibits an R&D forward-thinking mindset for exploring future state solutions; * Extensive experience designing and building high-quality, large-scale, and performant web applications; * Deep proficiency with our core frontend frameworks and libraries technologies: React, Redux, and Next.js; * Proven ability to implement robust features and ensure excellent type safety and code maintainability; * Leverage the ability to architect AI-assisted interfaces, including streaming LLM responses while working with backend api, agent solutions. Development & Testing * Hands-on experience integrating and managing real-time functionality using technologies and real-time messaging protocols; * Commitment to quality assurance, demonstrated by experience writing comprehensive unit and integration tests using a recognised testing framework. Architecture & Growth * Contribute to architectural and scaling decisions for complex, high-traffic applications; * Security & compliance awareness with the implementation of Content Security Policies (CSP), OAuth/OIDC flows and other security standards; * Push forward with technical roadmaps, working with engineering and product leaders to align the 1-3 year technical vision with business goals ensuring the platform can deliver its capabilities; * Proactive approach to continuous learning, staying current with emerging frontend technologies and best practices, and demonstrating a desire to drive technical improvements. Bonus skills * Passionate about learning new, cutting-edge technologies and finding applicable business cases as needed; * A passion for video games and esports is a plus; * Our tech stack moves as fast as the industry does. We're looking for engineers who love leveling up their skills and staying agile as we evolve... ## Description The purpose of this role is to take full ownership of the front-end platform as well as initiatives across various platform offerings. In this role, you will utilize cutting-edge technical platforms, environments and technologies (React, Redux, TypeScript, Next.js) to constantly evolve and improve the product ensuring the roadmap is defined, understood, planned and delivered. Furthermore, the role involves proactive contribution to the improvement of best practices and the technical foundation of the entire Frontend Guild, in collaboration with the Frontend Platform team. Additionally, while we are currently developing ambitious new features, we maintain an open-door policy for innovation. We highly value colleagues who bring fresh perspectives and exciting ideas to the table to help shape the future of our product. ## Related Videos - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [WeAreDevelopers LIVE – Frontend Inspirations, Web Standards and more](https://www.wearedevelopers.com/videos/1761-wearedevelopers-live-frontend-inspirations-web-standards-and-more) - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Get started with securing your cloud-native Java microservices applications](https://www.wearedevelopers.com/videos/123-get-started-with-securing-your-cloud-native-java-microservices-applications) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [From Zero to Hero: NextJS 13 and Tailwind CSS for Beginners](https://www.wearedevelopers.com/videos/766-from-zero-to-hero-nextjs-13-and-tailwind-css-for-beginners) ## Related Articles - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)