Top Senior Front End Developer Jobs in Denver & Boulder, CO

YesterdaySaved
In-Office
Colorado
127K-217K Annually
Senior level
127K-217K Annually
Senior level
Aerospace • Information Technology • Software • Cybersecurity • Design • Defense • Manufacturing
Lead a team of HMI developers to design and implement high-performance web-based HMI and visualization components. Build front-end applications and APIs integrating backend services, simulations, and digital twin data. Collaborate with cross-functional teams, prototype features, participate in design/code reviews, testing, documentation, and support deployment and operational testing for defense command-and-control systems.
Top Skills: APIsCesiumCesiumjsDigital TwinFlaskHmiJavaJavaScriptMod & SimNode.jsPythonSpring BootThreejsWebgl
Reposted 25 Days AgoSaved
Remote
Colorado
170K-230K Annually
Senior level
170K-230K Annually
Senior level
Healthtech • Pet
The Staff Frontend Engineer will lead frontend architecture, build high-performance React applications, mentor junior engineers, and collaborate closely with product teams to enhance user experiences.
Top Skills: ClickhouseDjangoDjango Rest FrameworkElasticsearchGitJavaScriptPostgresPythonReactReact NativeRedisTypescript
Reposted YesterdaySaved
Remote or Hybrid
Colorado
200K-250K Annually
Senior level
200K-250K Annually
Senior level
Cloud • Digital Media • Enterprise Web • Marketing Tech • Software
The Staff Frontend Engineer will lead frontend system development, architect scalable solutions, mentor engineers, and drive best practices while collaborating cross-functionally.
Top Skills: Angular 2+JestNgrxPlaywrightReactRxjsTypescriptVite
Reposted YesterdaySaved
Remote
Colorado
175K-200K Annually
Senior level
175K-200K Annually
Senior level
Healthtech • HR Tech • Sales • Social Impact • Software
As a Staff Front End Engineer, you will lead the front end vision, drive architecture decisions, and mentor engineers while developing high-impact web applications in a collaborative environment.
Top Skills: JavaScriptReactReact NativeTypescriptWebpack
Reposted YesterdaySaved
Remote
Colorado
Senior level
Senior level
Food • Manufacturing
Design, build, test, and maintain scalable React/Redux web applications. Implement responsive UIs, integrate with Node.js and REST APIs, write unit tests with JEST, perform code reviews, debug issues, and participate in Agile ceremonies while maintaining project documentation.
Top Skills: CSSDynatraceGrafanaHTMLJavaScriptJestMicroservicesNode.jsReactReduxRestful ApisWebpack
YesterdaySaved
In-Office or Remote
Colorado
Senior level
Senior level
Information Technology • Software • Web3 • Infrastructure as a Service (IaaS)
Build and own frontend surfaces for trading and DeFi products, designing scalable real-time UIs, improving UX, setting frontend standards, collaborating on SDKs/APIs, and contributing to tooling, testing, and CI/CD.
Top Skills: ClaudeFigmaReactReact QueryReduxTypescriptWebsocketsZustand
YesterdaySaved
In-Office or Remote
Colorado
Senior level
Senior level
Information Technology • Software
Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.
Top Skills: Ci/CdClaudeCursorEsbuildFigmaGitHotwireHTMLJavaScriptRuby On Rails 8SlackStimulusTailwind CssTurboTurbo FramesViewcomponent
Reposted YesterdaySaved
Remote
Colorado
160K-220K Annually
Senior level
160K-220K Annually
Senior level
Fintech • Payments • Software • Financial Services
The Frontend Engineer will lead the development of applications using React, focusing on user experience and collaborating with cross-functional teams to improve frontend architecture and address user needs.
Top Skills: React
Reposted 7 Days AgoSaved
In-Office
Colorado
185K-320K Annually
Senior level
185K-320K Annually
Senior level
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
Lead the development of front-end architecture for spacecraft modeling software, drive cross-functional initiatives, mentor engineers, and influence product strategy.
Top Skills: CSSGraphQLGrpcHTMLJavaScriptReactRestTypescriptWebsockets
Reposted 4 Days AgoSaved
Remote
Colorado
200K-245K Annually
Senior level
200K-245K Annually
Senior level
Machine Learning • Software
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.
Top Skills: APIsCSSGitHTMLJavaScriptJIRAMicro-ServicesTypescript
Reposted 10 Days AgoSaved
In-Office
Colorado
122K-157K Annually
Senior level
122K-157K Annually
Senior level
Aerospace • Hardware • Machine Learning • Software • App development • Defense • Data Privacy
Lead a team to develop user interfaces for mission-critical solutions. Responsibilities include code contributions, guidance, task assignments, and maintaining CI/CD pipelines.
Top Skills: IonicNode.jsTauriTypescriptVue
Reposted 10 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
232K-310K Annually
Senior level
232K-310K Annually
Senior level
Big Data • Fintech • Mobile • Payments • Financial Services
This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.
Top Skills: Ai ToolingCi/CdNxOxlintReactRspackTurborepoTypescriptVite
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6 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Big Data • Healthtech • Software • Biotech
Lead frontend development for native iOS and Android apps using React Native. Turn Figma designs into high-performance screens, ship end-to-end releases to App Store and Google Play, optimize performance and startup time, design architecture and state management, own code quality and reviews, implement rich animations and gestures, integrate APIs and AI features, and maintain analytics, logging, and monitoring.
Top Skills: AIAndroidApp StoreEasExpoFigmaGoogle PlayiOSReactReact NativeTypescript
Reposted 6 Days AgoSaved
Remote
Colorado
123K-184K Annually
Senior level
123K-184K Annually
Senior level
Artificial Intelligence • Information Technology • Consulting
The role involves designing and building internal web applications for Nebius, focusing on automating data center operations and developing user interfaces for infrastructure management.
Top Skills: DockerJavaScriptLinuxReactTypescript
7 Days AgoSaved
Remote
Colorado
1M-2M Annually
Senior level
1M-2M Annually
Senior level
Information Technology • Professional Services • Consulting
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.
Top Skills: Business Application Studio (Bas)CSS3EclipseHTML5JavaScriptJqueryMvc ArchitectureOdataSap FioriSap Fiori LaunchpadSap Ui5Sap Web IdeSapui5
7 Days AgoSaved
In-Office or Remote
Colorado
120K-170K Annually
Senior level
120K-170K Annually
Senior level
Edtech • Information Technology • Professional Services • Software
Design, build, and deliver front-end features with strong UX focus. Own technical design, coding, testing, deployment, and monitoring in a continuous delivery, microservices environment. Collaborate with Product, implement automated QA practices, and contribute to production deployments while practicing robust testing methodologies.
Top Skills: AngularAutomated QaAWSContinuous DeliveryCSSHTMLJavascript (Es2015)MicroservicesMockingNext.JsReactServer Side RenderingTddTypescriptUnit Testing
Reposted 15 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
218K-257K Annually
Senior level
218K-257K Annually
Senior level
Artificial Intelligence • Blockchain • Fintech • Financial Services • Cryptocurrency • NFT • Web3
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.
Top Skills: BitcoinBlockchainDappsDockerEnsEthereumGoPostgresRuby on RailsRubySinatra
Reposted 9 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Professional Services • Consulting • Automation • Manufacturing
The UI Frontend Developer will design and develop responsive web applications, coordinate with backend developers, and create modular components, while ensuring high-quality coding standards.
Top Skills: Adobe PhotoshopAngularAWSAzureCloud ComputingCSSGimpGitHTML5HypervIllustratorJavaScriptJSONLinuxPythonRest ApisSQLTypescriptVMware
Reposted 15 Days AgoSaved
In-Office
Colorado
155K-200K Annually
Senior level
155K-200K Annually
Senior level
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
The Sr. Software Engineer, Front End will develop 2D and 3D frontend features, drive architectural direction, mentor junior engineers, and address technical debt under high accountability in a complex simulation environment.
Top Skills: CSSGrpcHTMLJavaScriptReactReact Testing LibraryRestTypescriptVitestWebsocket
Reposted 10 Days AgoSaved
Remote
Colorado
Senior level
Senior level
eCommerce • Information Technology • Software • App development
The Lead Front-End Developer will lead frontend initiatives, ensuring an optimal user experience, architecting solutions, and mentoring developers.
Top Skills: BitbucketCSSGitHTMLJavaScriptReact
12 Days AgoSaved
Remote
Colorado
Senior level
Senior level
Agency • Artificial Intelligence • Blockchain • Web3
Develop and maintain Java backend services for enterprise blockchain applications, integrate APIs with React/Vue frontends, design scalable blockchain solutions, troubleshoot complex backend issues, and collaborate with the team to apply best practices and stay current with blockchain trends.
Top Skills: APIsBlockchainJavaReactVue
13 Days AgoSaved
Hybrid
Colorado
90K-190K Annually
Senior level
90K-190K Annually
Senior level
Information Technology • Consulting
Design, develop, and deliver front-end enterprise solutions in a consulting environment. Collaborate with designers and clients to convert designs into accessible, responsive, cross-browser implementations, apply front-end patterns and best practices, mentor teammates, and contribute to CI/CD, testing, containerization, and cloud deployment workflows.
Top Skills: 508/Wcag AccessibilityAngularCi/CdClient-Side State ManagementCloud PlatformsContainerizationCSSFlutterHTMLJavaScriptLessPostcssReactReact NativeResponsive DesignSassSeoSource ControlStylusUnit TestingVue
18 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
145K-175K Annually
Senior level
145K-175K Annually
Senior level
Cannabis • eCommerce • Enterprise Web • Logistics • Payments • Software • Database
Design, build, and maintain scalable frontend applications using Vue 3 and TypeScript. Own feature delivery from design through production, build reusable components and architecture, improve performance and accessibility, collaborate with backend teams on APIs, write tests, mentor engineers, and help shape frontend tooling, CI/CD, observability, and security practices.
Top Skills: Composition ApiCore Web VitalsCSSDockerEsbuildEvent-Driven ApisGraphQLHTMLJavaScriptKubernetesNpmPiniaPlaywrightPnpmRestTypescriptViteVitestVue 3Vue Test UtilsVueVuexWcagYarn
Reposted 13 Days AgoSaved
Remote
Colorado
170K-253K Annually
Senior level
170K-253K Annually
Senior level
Gaming • Mobile
The Staff Front End Engineer will lead technical direction, improve app features, mentor engineers, and collaborate with cross-functional teams using React Native.
Top Skills: C++Ci/CdExpoGithub ActionsJavaJavaScriptKotlinObjective-CReact NativeSwiftTypescriptUnity
19 Days AgoSaved
Hybrid
Colorado
135K-165K Annually
Senior level
135K-165K Annually
Senior level
Information Technology • Insurance • Software
As a Principal Software Engineer, you will lead frontend development using React and TypeScript, mentor teams, and drive technical excellence in high-impact web applications. Responsibilities include designing scalable systems, optimizing performance, and collaborating with cross-functional teams.
Top Skills: ReactTypescriptWeb Apis
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