Top Front End Developer Jobs in London

Championing customer-facing product development, working closely with product and design teams, architecting, building, testing, and releasing features with high quality, and automating engineering tasks. Requires 3+ years of experience in a similar role, deep knowledge of JavaScript and web fundamentals, expertise in Front End stacks, understanding of testing and deployment processes, willingness to learn new technologies, data-driven mindset, and problem-solving skills for complex issues.

Develop and optimize product features, collaborate with product managers, interaction designers, and backend engineers, responsible for front-end infrastructure and component abstraction.

Seeking a Senior Frontend Engineer to join the Core Frontend team at RevenueCat. Responsibilities include designing, building, and shipping user-friendly web tools for developers.

As a Senior Frontend Engineer at Accurx, you will work closely with the Product Team to scale and innovate the product. Your responsibilities include supporting complex features, mentoring junior engineers, collaborating with stakeholders, and contributing to the development of the frontend guild. You should have experience in React, TypeScript, and Javascript, and be passionate about positively impacting lives through technology.

Join Contentful as a Senior Backend Engineer in the Search team to work on building and improving search engines systems, REST and GraphQL APIs, and large-scale database systems. Utilize your expertise in Node.js, TypeScript, Elasticsearch, and other modern services to enhance user experiences.

Lead Software Engineer at JPMorgan Chase within the Strategy and Growth Office responsible for designing and building scalable front-end solutions using TypeScript, React, and React Native. Advocate for high code quality, provide feedback to teammates, and contribute to technical discussions. Collaborate in cross-functional teams and demonstrate adaptability and strong communication skills.

As a Principal Application Engineer (Back End) at Discover, you will analyze, develop, and design solutions for application software. Responsibilities include creating solutions for high impact technology and business priorities, participating in strategic technology decisions, coaching technology communities, and proactively identifying and mitigating issues. Preferred qualifications include experience with Java programming, cloud-based technologies, CI/CD pipelines, test automation, and collaboration with business and product owners.

Develop new features for SpotMe's CMS (Backstage) and WebApp, optimize user experience, maintain integrations with external systems, participate in cross-team projects, and refactor legacy code.

Seeking a Senior Fullstack Engineer to design, develop, deploy, and operate business-critical features for Aircall's communication technology. Responsibilities include requirements analysis, code development, mentoring, and optimization of products and platforms. Must have 5+ years of backend development experience and 2+ years of frontend development experience.

Chainlink Labs is looking for a Senior Software Engineer (Backend) in the EMEA region to join their engineering team. The ideal candidate should have 5+ years of professional engineering experience, expertise in Golang, Typescript, Solidity, or Rust, a passion for blockchain and decentralized technologies, strong communication skills, and a good understanding of computer science fundamentals. Experience in project communication, blockchain technologies, open source contributions, and mentoring junior developers is preferred. This role involves working remotely as part of a distributed team located across multiple time zones.

Join HubSpot as a Staff Software Engineer on the Forms Frontend team within Marketing Hub. Help build the future of the Forms product, write and ship production code, collaborate with cross-functional teams, and contribute to product innovation. Experience with React and TypeScript is preferred. Passion for clean code, product development, and mentoring is essential.

Webflow is seeking a Senior Frontend Engineer to help build and maintain Webflow's Designer User Experience. Responsibilities include writing performant and accessible user interfaces, working with technologies like React.js, Javascript/Typescript, HTML, and CSS, leading projects, and mentoring junior engineers. Full-time remote position with a salary range of GBP 75,100 - GBP 121,650 per year in the United Kingdom.

Hiring a Senior Frontend Engineer at Testlio to deliver high-quality software experiences leveraging data and AI advancements for software testing services. The role involves shaping the future of testing with AI and making a tangible impact on client success and product quality.

Senior Backend Software Engineer role at Motorola Solutions with a focus on developing projects across the backend stack, building new features, optimizing performance, and scaling the Ava Aware solution. Involvement in mentoring graduate developers and contributing to the development of a disruptive product in the security industry.

Senior Software Engineer - Front End role at Doccla, responsible for building the Virtual Ward and clinician portal to improve clinical outcomes for patients across the UK. Requires self-motivation, experience with Elm language, and strong UX/UI design skills. Experience with web components and quality management system IEC-62304 is a plus.

Staff Software Engineer needed to join the Forms Frontend team at HubSpot to build and innovate on the Forms product within Marketing Hub. Responsibilities include writing production code, collaborating with cross-functional teams, implementing experiments, and contributing to company growth. Seeking engineers with strong programming fundamentals and a passion for clean, scalable code and product innovation.

The Senior Software Engineer - Frontend at EFG (ESL FACEIT Group) is responsible for building large-scale applications using React, Redux, and Next.js. They should have experience with WebSockets, real-time messaging, and a passion for video games and esports. Ideal candidates will have knowledge of Webpack, testing frameworks, optimization strategies, web best practices, and scalable architecture systems.