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Top Front End Developer Jobs in Denver & Boulder, CO

Reposted 4 Days AgoSaved
Remote
Colorado
170K-225K Annually
Expert/Leader
170K-225K Annually
Expert/Leader
Artificial Intelligence • Machine Learning • Software • Defense
Develop and implement advanced UI applications for defense intelligence using TypeScript and React, mentoring junior engineers and collaborating with cross-functional teams.
Top Skills: Node.jsOpensearchPostgresReactTailwindTypescript
Reposted 7 Days AgoSaved
In-Office or Remote
Colorado
65-90 Hourly
Senior level
65-90 Hourly
Senior level
Food • Healthtech • Information Technology • Other
Youtopia Marketplace seeks a Senior Front-End Engineer to develop high-performance UIs using Angular and Ionic for a 6-month contract, focusing on user experience and mobile application engineering.
Top Skills: AngularIonicRxjsSignal FormsSignalsTypescript
16 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
118K-223K Annually
Junior
118K-223K Annually
Junior
Artificial Intelligence • Enterprise Web • Software • Design • Generative AI
Build and ship performant, accessible subscription and billing UIs. Implement plan selection, checkout, and billing management features using React/TypeScript, ensuring maintainable, tested, and high-quality front-end code. Collaborate with product, design, and cross-functional teams to improve monetization, conversion, and retention.
Top Skills: CSSCypressHTMLJavaScriptJestMochaPlaywrightReactTypescript
16 Days AgoSaved
Hybrid
Colorado
135K-165K Annually
Senior level
135K-165K Annually
Senior level
Information Technology • Insurance • Software
Lead architecture and build high-performance React 19 applications using TypeScript and modern patterns. Define design-system-driven components, optimize front-end performance, mentor teams, drive technical direction, and collaborate across product, design, and customers to deliver scalable enterprise UIs.
Top Skills: React 19,React Compiler,React Concurrent Features,Typescript,Web Apis,Restful Apis,Backend-For-Frontend (Bff),Angular,Extjs,Winforms,Oracle,Sqlserver,Postgresql,Cassandra,Agile
Reposted 20 Hours AgoSaved
In-Office
Colorado
90K-115K Annually
Junior
90K-115K Annually
Junior
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
Contribute to the development of web-based frontend space ground system software, collaborating with teams and ensuring code quality through testing and reviews.
Top Skills: CSSGitGraphQLGrpcHTMLJavaScriptJestReactReact Testing LibraryRestfulTypescriptVitestWebsocket
Reposted YesterdaySaved
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
As a Staff Engineer in the Prime UI Platform Team, you'll design core systems for frontend experiences, focusing on reliability and performance. You'll lead architecture decisions, develop APIs, optimize data streams, and enhance developer tools while collaborating with frontend engineers and product teams.
Top Skills: DockerGoGraphQLPostgresRuby on RailsRestRubySinatraSseWebsocket
3 Days AgoSaved
In-Office
Colorado
118K-200K Annually
Senior level
118K-200K Annually
Senior level
Aerospace • Information Technology • Software • Cybersecurity • Design • Defense • Manufacturing
The Front-End Software Engineer will develop and deliver software solutions, focusing on web-based command-and-control systems and training capabilities for defense applications.
Top Skills: AgileCesiumCesiumjsFlaskGitlabJavaJavaScriptNode.jsPythonSpring BootThreejsWebgl
Reposted 4 Days AgoSaved
In-Office
Colorado
175K-230K Annually
Expert/Leader
175K-230K Annually
Expert/Leader
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
Lead the frontend technical direction for spacecraft modeling and simulation software, driving strategic initiatives, mentoring engineers, and shaping product direction.
Top Skills: CSSGraphQLGrpcHTMLJavaScriptReactRestThree.JsTypescriptWebglWebsockets
5 Days AgoSaved
Remote
Colorado
138K-221K Annually
Senior level
138K-221K Annually
Senior level
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Lead frontend architecture for menu management workflows, developing scalable UI, collaborating with teams, and mentoring engineers while ensuring system reliability.
Top Skills: GraphQLReactRestTypescript
5 Days AgoSaved
Remote
Colorado
174K-261K Annually
Senior level
174K-261K Annually
Senior level
Artificial Intelligence • Productivity • Software • Automation
As a Senior Frontend Engineer at Zapier, you'll design and develop complex UIs, lead feature delivery, and integrate AI into products while collaborating with cross-functional teams.
Top Skills: AIReactTypescript
2 Hours AgoSaved
Remote
Colorado
Internship
Internship
Fitness • Healthtech • Payments • Software
As a Front-End Developer Intern, you will design and build web applications, collaborate with teams, participate in code reviews, and maintain code quality.
Top Skills: CSSGitHTMLJavaScriptJqueryReactTypescript
Reposted 2 Days AgoSaved
Remote
Colorado
136K-180K Annually
Mid level
136K-180K Annually
Mid level
AdTech • Marketing Tech • Software
The Product Frontend Engineer will design and build scalable applications, collaborate with teams, and enhance frontend quality using AI tools.
Top Skills: Ai ToolsCSSHTMLJavaScriptNext.JsReactTypescript
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Reposted 2 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
110K-150K Annually
Mid level
110K-150K Annually
Mid level
Healthtech • Other • Telehealth
As a Frontend Engineer, you'll develop and maintain frontend features, collaborate cross-functionally, and implement best practices in a dynamic coding environment.
Top Skills: BootstrapCSS3DockerHTML5JqueryMySQLPHPReactRedisSassTwig
Reposted 8 Days AgoSaved
In-Office
Colorado
165K-200K Annually
Senior level
165K-200K Annually
Senior level
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Develop and integrate front-end components for online GIS applications, ensuring effective user experiences while collaborating with cross-functional teams to meet national security needs.
Top Skills: Adobe Creative SuiteAngularCi/CdCypressFigmaGitGrafanaJavaScriptLokiPlaywrightReactSeleniumSketchVue
Reposted 3 Days AgoSaved
In-Office or Remote
Colorado
130K-160K Annually
Mid level
130K-160K Annually
Mid level
Software
As an Intermediate Front End Engineer, you'll collaborate with designers and engineers to develop user-focused features, maintain core products, and ensure code quality and security.
Top Skills: DefiFigmaWeb3
Reposted 4 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
150K-180K Annually
Mid level
150K-180K Annually
Mid level
Software
Build and own interactive frontend features using React and TypeScript, partner with design and backend/AI teams, write testable code, improve frontend architecture, and contribute to shared components and best practices.
Top Skills: JavaScriptReactTypescript
4 Days AgoSaved
Remote
Colorado
Senior level
Senior level
AdTech • Artificial Intelligence • Marketing Tech
As a Lead Frontend Engineer, you will shape the frontend architecture, lead a team of engineers, and ensure high standards of quality and speed for an AI-driven product.
Top Skills: Next.JsReact Hook FormReactRedux ToolkitRtk QueryShadcn/UiTailwind CssTypescript
Reposted 4 Days AgoSaved
Remote
Colorado
136K-180K Annually
Mid level
136K-180K Annually
Mid level
AdTech • Marketing Tech
The Product Frontend Engineer will design and build AI-driven applications, collaborate with teams, and ensure code quality and performance.
Top Skills: CSSHTMLJavaScriptNext.JsReactTypescript
Reposted 10 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
125K-165K Annually
Senior level
125K-165K Annually
Senior level
Cloud • Information Technology • Security • Software
Lead architecture and development of front-end features for the Risk Cloud platform using Angular and TypeScript. Write and review tests and code, collaborate with product, design, QA, and engineering teams using Agile practices, and optimize the front-end for speed, reliability, and scalability while promoting testing-first and iterative delivery.
Top Skills: AngularAnsibleAWSConfluenceCypressDockerGoogle SuiteGitlabGoJasmineJavaJIRAJunitKarmaKotlinKubernetesNeo4JPostgresRabbitMQRedisSassSlackSpectatorSpring BootTerraformTypescriptWebpack
Reposted 4 Days AgoSaved
Remote
Colorado
Junior
Junior
Software
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.
Top Skills: AWSCSSHTMLJavaJavaScriptReact
Reposted 4 Days AgoSaved
Remote or Hybrid
Colorado
Mid level
Mid level
Artificial Intelligence • Information Technology • Software
Design user interfaces and workflows in Figma, implement designs using Vue.js and Next.js, and collaborate with backend engineers on API integration.
Top Skills: GraphQLModern CssNext.JsRest ApisTypescriptVueWebsocket
Reposted 4 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
Senior level
Senior level
Software • Web3
As a Lead Front-End Engineer, you'll own UI architecture, mentor team members, manage technical initiatives, and drive AI-powered feature development.
Top Skills: Ai Coding AssistantsCSSHTMLReactTailwindTypescriptWeb ComponentsWeb Workers
5 Days AgoSaved
Easy Apply
Remote
Colorado
Easy Apply
100K-115K Annually
Mid level
100K-115K Annually
Mid level
Biotech
Develop and optimize front-end applications using React, collaborate with cross-functional teams, and implement best coding practices for UI components.
Top Skills: CSS3GitHTML5JavaScriptReactRestful ApisTypescriptWordpress
11 Days AgoSaved
Remote
Colorado
200K-245K Annually
Senior level
200K-245K Annually
Senior level
Mobile • Real Estate • Software • Database • Analytics
Lead architecture and implementation of a new frontend platform, define org-wide frontend best practices, mentor engineers, collaborate with product/design/backend, operationalize tools and CI/CD, drive cross-team initiatives, and ensure high-performance, maintainable, and accessible frontend systems.
Top Skills: CSSHTML5Javascript (Es6+)ReactTypescript
6 Days AgoSaved
Remote
Colorado
30-40 Hourly
Senior level
30-40 Hourly
Senior level
AdTech • Agency • Marketing Tech • Software
The developer will build and maintain scalable storefront features using Shopify Hydrogen, React, and TypeScript, collaborate with teams, and optimize performance.
Top Skills: GraphQLJavaScriptReactShopify HydrogenTypescript
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