Top Front End Developer Jobs

Architect and build a high-performance, low-latency trading web platform. Integrate real-time market data and execution workflows, collaborate cross-functionally on large initiatives, and deliver scalable, performant, user-focused frontend applications with strong attention to API design, tooling, and developer experience.

Design and implement frontend features for patient and provider web experiences at scale. Build realtime, accessible, high-performance interfaces, own application reliability and monitoring, contribute to architecture and technical roadmap, drive testing and observability best practices, collaborate cross-functionally, and participate in on-call rotations.

As a Sr. Distinguished Engineer, you will lead technical vision, mentor talent, drive engineering excellence, and oversee large-scale web platform migrations.

Build mission-critical frontend features for civil aviation: develop fast, maintainable React/TypeScript interfaces, real-time map-based visualizations with Mapbox/Maplibre/Google Maps, and leverage WebGL/WebGPU/ThreeJS and WebAssembly for accelerated rendering and performance.

Build, maintain, and optimize scalable front-end systems and web experiences. Translate Figma designs into reusable components, support large-scale site migrations, improve performance, accessibility, and SEO, and work with cross-functional teams using modern workflows and AI-assisted tools.

Design, build, and maintain provider- and care-team-facing web interfaces for clinical and operational workflows. Own features end-to-end, drive frontend architecture, optimize client-side performance and accessibility, collaborate with product/design/data/clinical teams, instrument metrics, and participate in on-call rotations to ensure reliable production systems.

Design, build, and maintain provider-facing web interfaces for clinical workflows. Own end-to-end frontend architecture, performance, accessibility, testing, observability, and reliability. Collaborate with product, design, data, and clinical teams, contribute to technical roadmap, and participate in on-call rotations to ensure production reliability.

The Front End Web Developer translates UI/UX designs into code, develops web applications, advises on graphic design, and collaborates with teams in Agile projects.

Develop and maintain production-ready front-end components using HTML5, CSS and JavaScript. Translate designs into responsive, accessible web assets, integrate with Sitecore/other CMS, optimize performance, collaborate with UX, implement APIs, and support testing, personalization, search, and ML-enabled features.

Volunteer Principal Front End Developer to build React/React Native web and mobile features, mentor engineers, implement scalable full‑stack solutions, ensure cross‑browser compatibility and testing, work with Node/MongoDB/AWS, attend weekly standups, and support a fundraising launch. Minimum 4 hours/week commitment.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end developers, implement UI/UX designs, write clean maintainable code, and debug front-end issues to ensure high performance across devices and browsers.

Build high-performance, responsive, and accessible frontend applications across e-commerce, B2B, and internal tools using Next.js, React, and TypeScript. Implement design-system components, optimize Core Web Vitals, add animations, support A/B testing, collaborate in a monorepo with backend teams, and design interfaces for AI agents with real-time streaming and error handling.

Build responsive enterprise web applications for digital banking using React, TypeScript, JavaScript, and GraphQL. Develop reusable UI components, integrate Apollo Client, implement state management, optimize accessibility and performance, troubleshoot production issues, and collaborate with backend engineers, product owners, designers, and QA in an Agile environment.

Build and maintain responsive, accessible React/NextJS web interfaces and support Chrome extension development (Manifest V3). Integrate with backend APIs or WebSockets, optimize performance, write tests, perform code reviews, monitor and document extension and web app behavior, and collaborate with cross-functional teams.

Build and maintain responsive, accessible front-end interfaces using React, React Native, HTML, CSS, and Shopify. Apply UX/UI principles, collaborate with designers and multidisciplinary teams, provide clear technical feedback, and independently deliver high-quality work on complex technology or AI-related projects. Contractors complete output-based tasks and must meet weekly minimum submission requirements, with an expected start within 24–48 hours of onboarding.

The Founding Frontend/UX Engineer will design and develop user interfaces using modern web technologies, collaborating closely with AI engineers and co-founders to deliver a leading AI platform for life sciences.

Design and build a scalable, responsive UI; lead frontend architecture and optimization; apply UI/UX best practices; integrate with backend APIs; ensure high web performance and deploy user-facing features.

Lead and deliver frontend engineering projects: build scalable progressive web apps, maintain the design system, collaborate with designers, researchers, and product teams, ensure UI excellence and high-quality frontend code across products.

3-month contract Frontend Engineer to build client-facing UIs and integrations for cybersecurity use cases. Collaborate with product, design, and engineering to deliver secure, performant, scalable features, maintain component libraries and automated tests. Remote (GMT+8) role focused on TypeScript and modern web tooling.

Build and maintain Microsoft Ads front-end UI for campaign management. Collaborate with PMs and designers to design, implement, and operate features, build metrics, and integrate AI-powered capabilities to improve product and engineering productivity.

Build and refine customer-facing React features and internal dashboards, implement TypeScript-based UIs in strict mode, integrate frontend with backend APIs, and contribute to product and design decisions for an AI-driven scheduling assistant.

Build and refine front-end experiences for web and mobile: onboarding, checkout, gallery features, design system and enterprise dashboard. Collaborate closely with designers and PMs, ship fast, maintain aesthetic quality, and iterate with user feedback using React, Next.js and TypeScript.

Lead ownership of Belfry's React Native/Expo mobile app and React web platform; establish frontend best practices, design systems, observability, and performance standards; contribute across the full stack (APIs, backend, integrations); deploy and scale production systems; mentor engineers and promote AI-assisted development workflows.

Build and improve Belfry’s React Native and Expo mobile application and React web platform for field officers and back-office teams. Establish UI best practices, observability, and design systems; contribute to APIs, backend services, integrations, and infrastructure as needed. Help adopt AI-powered coding tools, take ownership of product initiatives, communicate technical and product ideas, and mentor engineers.

Develop and lead front-end implementation for large-scale web applications using HTML/CSS/JavaScript and related technologies. Integrate front-end with back-end systems, optimize performance (minification, caching, CDNs), ensure cross-browser compatibility, use build tools, prototype UIs rapidly, and collaborate across teams with strong communication and problem-solving skills.