Top Web Developer Jobs in London

The Senior Web Developer will implement user-facing features, optimize web applications, and build frameworks to enhance development efficiency at CoinMarketCap.

This role involves managing and improving the company's Wordpress website, optimizing content, supporting cross-functional teams, and addressing technical issues efficiently.

Maintain and update client websites for automotive dealership accounts: implement content and structural changes, fix redirects and errors, optimize for SEO and performance, work in CMS platforms (e.g., WordPress), and collaborate with SEO, content, and design teams in a fully remote agency environment.

Maintain and build features across multiple global marketing websites using modern front-end frameworks. Improve site performance, UX, SEO, and documentation. Collaborate with marketers, DevOps, and regional developers to deliver new sites and optimizations.

Looking for developers with e-Commerce platform experience, strong JavaScript skills, and knowledge of HTML/CSS, working on high-profile projects.

As a Wordpress Web Developer, you will manage and improve the company website's performance, support teams with technical issues, and ensure effective content sharing.

Responsible for architecting and taking ownership of complex web projects, mentoring other developers, and optimizing performance and security in a WordPress context.

Lead the architectural direction of Intercom's web platform, overseeing performance, scalability, and cross-functional collaboration to support marketing and engineering efforts.

Design, build, and maintain end-to-end web solutions, collaborating across teams. Optimize performance, manage backend systems, and stay updated on trends.

Build and maintain internal Web Platform tooling and libraries used by M&S engineering teams. Own end-to-end platform features, improve CI/CD, monorepo health, testing, observability, and reliability. Mentor engineers, collaborate across teams, and operate platform services with a production-first mindset.

Build and evolve web platform capabilities — shared tooling, libraries, CI/CD and monorepo architecture — to improve developer productivity. Set technical direction, own architecture decisions, collaborate with teams, and mentor engineers.

Lead development of FlexONE web and mobile applications across a Scala/Play backend and React/TypeScript frontend. Drive mobile migration, ensure quality, observability and performance, mentor engineers, assist hiring, and collaborate with desktop teams to deliver feature parity.

The Ruby Engineer will focus on web scraping and browser automation, fix code issues promptly, support customers, and enhance search engine integrations.

Design and implement frontend applications using JS, CSS, React, and Flutter. Collaborate on technical specs and contribute to documentation, ensuring user experience and performance.

The Senior Web Application Developer will design, develop, and maintain scalable web applications, lead cloud migration efforts, and collaborate with cross-functional teams to enhance system performance and reliability.

Ship real open-source integrations and MCP servers to bring SearchApi to agent and automation frameworks. Create PRs, example apps, docs, and integration guides. Stay current with the agent ecosystem, pick high-leverage targets, and work independently to deliver production-ready integrations.

As a Frontend Engineer, you will develop new features for Proton's services, collaborate with teams, ensure code quality, and implement testing strategies.

The Senior Frontend Engineer will develop and support innovative privacy-centric tools, ensuring seamless user experiences and collaborating with teams to enhance product features while managing software quality and team mentorship.