Top Web Developer Jobs in London

Lead front-end development using React and TypeScript to build scalable, performant B2C and B2B features. Drive code quality, testing, and cross-functional delivery within squads. Champion enterprise-authorized AI-assisted engineering practices, SDLC automation, and responsible AI standards while mentoring teammates and contributing to technical decisions.

Design and implement reusable website components and page templates, maintain the site's design system, build and update pages (Webflow/HTML/CSS), collaborate with product, marketing and analysts to inform design decisions, explore animation and personalization, and help bring new products and campaigns to market.

Build and optimize high-traffic e-commerce user-facing web applications using React or similar frameworks. Collaborate with product and backend teams to integrate APIs, improve frontend performance, ensure cross-browser/device stability, participate in design and code reviews, and adopt new frontend technologies. Work onsite in London.

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.

Build and maintain high-performance, data-driven web applications for market data and trading services. Design full-stack solutions, implement features, write tests, support production, participate in planning and reviews, mentor engineers, and produce documentation and specifications.

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.

Freelance Drupal developer/designer to restructure site architecture, improve navigation and design, implement responsive layouts, manage Arabic multilingual content, and provide ongoing maintenance and security updates.

Build a production-ready web crawling and AI lead-qualification application: crawl and extract website content, analyze with LLMs to score/qualify industry-specific leads, produce structured outputs, and deliver a maintainable handover-ready product.

Develop and maintain scripts, API integrations, and full-stack Node.js web applications to support CAD, PDM, and engineering platforms; automate processes with PowerShell; work with SQL databases; use Autodesk Forge for integrations; improve development processes and mentor team members.

Build and scale customer-facing web applications using modern frontend technologies. Design and implement new product features, collaborate with design and product teams, participate in code reviews and architecture discussions, mentor junior engineers, and ensure high-quality, tested, and maintainable code supporting rapid feature development.

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 large-scale WordPress platforms, develop reusable plugins and custom blocks, implement features, optimize performance and accessibility, debug and refactor code, collaborate with teams and clients, and take increasing technical ownership on projects.

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

Lead design and development of a high-performance Web SDK for device fingerprinting and behavior analytics. Implement algorithms for fingerprints and interaction capture, optimize cross-browser performance, build CI/CD and automated cross-browser tests, ensure data privacy/security, mentor engineers, conduct code reviews, and collaborate with product and QA to deliver scalable, maintainable SDKs.

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

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

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 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.

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