Top Front End Developer Jobs in St. Louis, MO

Own front-end architecture and build React + TypeScript applications for Device OS. Focus on performance, accessibility, real-time data, REST integration, design systems, testing, and cross-functional collaboration. Mentor engineers, conduct reviews, and deliver scalable, responsive UIs for field-deployed devices.

The Sr/Staff Frontend Engineer will develop new web applications, enhance UI experiences, architect solutions, and collaborate with various stakeholders to ensure a scalable and secure platform.

As a Senior Frontend Engineer, you will design and build web applications, owning major UI projects, collaborating with cross-functional teams, and optimizing performance for a seamless user experience.

The Frontend Engineer will develop high-performance trading UIs for a decentralized exchange platform, manage state across various blockchains, and implement reliable transaction handling features.

The role involves designing and building internal web applications for Nebius, focusing on automating data center operations and developing user interfaces for infrastructure management.

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

Contract frontend engineer to build and maintain a Sanity-backed Next.js order page platform. Responsibilities include component development, Sanity Studio schema work, end-to-end test ownership (Playwright or similar), routing and architecture improvements, performance optimization, and supporting A/B testing and monitoring. Work closely with marketing, product, and engineering on a high-traffic, revenue-critical purchase flow and participate in on-call and CI/CD processes.

Design, build, and maintain scalable Angular frontend applications using TypeScript, RxJS, and Tailwind. Implement complex UI features, mapping/geolocation with Google Maps API, state management, testing (Jasmine/Karma), error monitoring (Sentry), and CI/CD workflows while collaborating cross-functionally and supporting multiple environments.

Lead design, development, and maintenance of enterprise-grade React + TypeScript applications. Own front-end performance, responsiveness, and security; integrate with .NET/Azure backends; mentor junior developers; perform code reviews and debugging; modernize legacy apps; collaborate with designers, offshore teams, and stakeholders in Agile ceremonies.

Build and evolve the guest-facing booking experience using React and TypeScript. Collaborate with product, design, and backend to ship performant, accessible, and well-tested features. Improve conversion through profiling and experimentation, lead technical discussions and frontend architecture, mentor teammates, and champion engineering best practices across testing, performance, and accessibility.

Lead front-end development using React and JavaScript to build responsive, high-performance web applications. Collaborate with UX designers, build reusable components, implement dynamic forms and drag-and-drop features, optimize for cloud deployment and security, mentor junior developers, and maintain design standards and testable, maintainable code.

Design, build, and maintain scalable, responsive frontend applications using React, Vue, and TypeScript. Convert UI/UX designs to pixel-perfect interfaces, optimize performance and memory usage, ensure accessibility, integrate with backend APIs, and contribute to architectural and technical decisions while collaborating with product, design, and backend teams.

Lead frontend development of production web applications using Svelte and other frameworks. Build reusable components, integrate REST/GraphQL APIs, ensure UI/UX quality, accessibility, and performance. Lead a small team, coordinate releases with QA, write tests, follow Git and CI/CD workflows, and collaborate remotely with stakeholders across the US.

Design and build performant, accessible frontend solutions across web apps, email campaigns, kiosks, and interactive experiences. Collaborate with UX and backend teams, write maintainable tested code, drive test automation and performance optimization, maintain codebases, and mentor junior engineers.

The Frontend Engineer will collaborate with design and product teams to create responsive user interfaces, write maintainable code, and optimize performance for a financial platform.

Develop and improve real-time drone tele-operations features, cloud-based products, and quickly prototype new front-end experiences while transitioning to a new tech stack.

Lead frontend architecture and product development for member-facing web and mobile apps. Build high-performance, accessible React/React Native UIs, own end-to-end features including APIs and backend services, mentor engineers, drive design system and frontend standards, and collaborate with Product, Design, Clinical, and Data teams to deliver scalable, user-centered health experiences.

The Software Engineer (Frontend) at Metabase will develop user-friendly data tools, leveraging React and CSS while ensuring optimal communication and coding practices.

Build, optimize, and maintain high-performance front-end components using Adobe Edge Delivery Services. Implement content blocks, templates, and responsive HTML/CSS/JS aligned to EDS and AEM. Improve Core Web Vitals and accessibility, lead migration POC work, integrate with Adobe Experience Cloud, collaborate across UX, architecture, and backend teams, and contribute to reusable component libraries and documentation.

Translate design specs into pixel-perfect, responsive web interfaces using TypeScript, CSS3, and HTML. Follow design systems and accessibility (WCAG) standards, optimize frontend performance, resolve spec ambiguities, collaborate remotely via documentation and code reviews, and provide frontend expertise to support AI model evaluation.

Build responsive, accessible web applications using JavaScript/TypeScript and a modern framework. Translate designs into reusable UI components, integrate with APIs, improve performance and accessibility, write tests, participate in code reviews, and collaborate with design, QA, backend and product teams.

Build and ship frontend features end-to-end for Supabase Studio and marketing/docs sites. Launch 0→1 products, iterate from user feedback, and own quality pipelines (types, tests, CI, accessibility, visual/regression, bundle budgets). Work across the stack publicly, tighten tooling for AI agents, add automated checks to prevent regressions, and operate autonomously in an async, remote environment.

Build and evolve HR tech products remotely as a TypeScript/React developer. Implement web interfaces, backend logic, database structures, and integrations (payroll, email/SMS, eSign, billing). Participate in daily agile rituals, perform code reviews, write technical documentation, and collaborate across cross-functional teams. Communicate with development teams in Russian and use intermediate English for requirements and docs.

The Front-End Web Developer will create visually appealing web interfaces, collaborate with designers, and write scalable code using modern frameworks.

Design user interfaces and workflows in Figma, implement designs using Vue.js and Next.js, and collaborate with backend engineers on API integration.