Top Front End Developer Jobs in Denver & Boulder, CO

Own end-to-end frontend development for core crypto payment flows across web and mobile. Improve latency, availability, and SLOs; build user-facing features (contacts, real-time transaction status); identify and fix performance bottlenecks; partner with product/design/backend; mentor junior engineers to reduce customer friction at scale.

Lead architecture and delivery of large-scale React and React Native frontends. Define frontend strategy and best practices, build shared component libraries and design systems, optimize performance and accessibility, collaborate with product/design/backend teams, mentor junior engineers, and resolve complex frontend and cross-stack issues.

Lead front-end development of secure, mission-critical GUIs using TypeScript/Vue and Node.js. Contribute production code, review peers, maintain CI/CD, tests, and UI components, coordinate with UX, produce documentation, and work on-site in Colorado Springs. Requires security clearance.

Lead a team to develop user interfaces for mission-critical solutions. Responsibilities include code contributions, guidance, task assignments, and maintaining CI/CD pipelines.

Build and ship polished, accessible, high-performance front-end features for Deepgram's Console and Playground. Partner with product and design to translate ideas into incremental releases, improve internal tools, and uphold front-end engineering standards through code reviews and design discussions.

Build and own end-to-end full-stack systems for AI-powered agentic trading across web and React Native mobile. Implement real-time, low-latency UIs and Go backend services, integrate streaming AI/ML features and market data, drive architecture and code quality, and collaborate with AI/ML, design, and product teams to ship production-ready features used by millions.

Lead frontend-leaning full-stack implementation work for carrier and enterprise integrations: architect reusable UI and API layers, author RFCs, guide technical delivery, enforce testing and security best practices, and partner with cross-functional teams to scope and ship production integrations.

Design, build, and deploy modern frontend web interfaces using HTML5/CSS3, JavaScript frameworks, and responsive design. Consume RESTful APIs, ensure Section 508 accessibility, work in agile/SAFe teams, use Git/GitHub, create views in full-stack frameworks, and support CI/CD and containerization practices. Mentor peers and rapidly learn new tools.

Senior frontend engineer responsible for building responsive, accessible web interfaces using modern HTML/CSS/JavaScript frameworks, consuming RESTful APIs, working in agile teams, and supporting CI/CD and containerization workflows.

This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.

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.

Lead front-end technical strategy for Coinbase Advanced trading platform: define and execute a scalable roadmap, deliver a low-latency interface across web and mobile, mentor engineers, anchor complex projects, and ensure high standards for code quality and system design.

Build and own end-to-end frontend experiences for Coinbase card products across web and mobile. Ship high-scale consumer features, improve payment flow performance and SLOs, reduce latency and CX contacts, mentor engineers, and collaborate with product, design, and backend teams to deliver reliable, user-focused card functionality.

Build and own complex frontend features using Vue 3 and TypeScript while developing the Python services and APIs that power them. Improve performance, accessibility, testing, CI/CD, and observability; collaborate with product and design; mentor engineers and apply AI-assisted development tools responsibly to accelerate productivity and maintain quality and security.

Own the technical direction and architecture of Arbor, Linktree’s shared frontend design system. Build and maintain component libraries, APIs, tokens, theming, accessibility, and documentation. Establish frontend engineering standards, guide platform strategy, manage versioning and adoption, and lead complex cross-team initiatives from definition through rollout. Partner with Product, Design, and Engineering leaders, mentor engineers, and raise technical quality across the organization.

Develop and enhance interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end web technologies. Build UI/UX components, integrate REST APIs, optimize performance and scalability, review designs, document changes, participate in code reviews, and collaborate with technical teams. The remote role supports a Washington, DC-based federal customer and requires Public Trust clearance and U.S. citizenship.

Develop and support interactive enterprise planning, reporting, and analytics web applications using SAP Analytics Cloud and front-end technologies. Responsibilities include building UI/UX components, reviewing requirements and designs, integrating REST APIs and data formats, improving application performance and scalability, documenting changes, participating in code reviews, and collaborating with technical teams. The role is remote, supports a Washington, DC customer, and requires Public Trust clearance and U.S. citizenship.

Build and scale customer-facing eCommerce and subscription experiences using React and Next.js. Translate designs into responsive, accessible, high-performance features, integrate APIs and third-party services, optimize Core Web Vitals, write tested code, review pull requests, resolve bugs, and own projects through deployment. Collaborate with product, design, marketing, backend engineering, and operations while contributing to architecture and engineering process improvements.

Own the AMS frontend, designing and shipping React and TypeScript features for data-intensive grids, forms, dashboards, and widgets. Integrate RESTful APIs using TanStack Query, manage state with React Context or Zustand, implement SurveyJS forms, and optimize performance for large datasets. Collaborate with backend engineers and designers, contribute to code reviews and Agile ceremonies, and work across time zones with an Australia-based team. The role requires US citizenship and willingness to pursue future security clearance.

Own the AMS frontend end to end, building React and TypeScript features, data-intensive grids, forms, dashboards, and widgets. Integrate RESTful APIs with TanStack Query, manage application state, optimize performance, and deliver accessible, responsive interfaces. Collaborate with backend and design teams, participate in code reviews and Agile ceremonies, and provide technical ownership of the platform’s frontend modernization.

Build performant, well-tested, responsive frontend UIs in collaboration with product and design. Translate Cloud Custodian concepts into user-friendly interfaces, lead frontend initiatives, mentor engineers, and work on a distributed Agile/DevOps team.

Build and ship performant, polished frontend features using React/TypeScript. Refactor code incrementally, implement smooth animations, contribute to backend Node.js APIs when needed, use AI-assisted tools, own production deployments, and collaborate directly with CTO/CPO on product and design.

Build user-facing features with React and TypeScript, implement responsive UIs from Figma, collaborate with design, deploy via continuous deployment, learn Node.js/backend, use AI coding tools, and ship production-ready features while receiving mentorship.

Design, develop, and enhance custom SAP Fiori/UI5 applications; configure Fiori Launchpad; integrate OData services; perform UI debugging, performance optimization, code reviews, unit testing, and documentation while collaborating with backend and functional teams.

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.