48 senior frontend developer jobs at 32 companies in Lyons, CO
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Senior Frontend Engineer
Denver, Colorado, United States
$160k-$185k/yr OnsiteFull Time
5+ YOE5+ years building production web apps; deep React expertise; strong HTML/CSS, accessibility, responsive design; experience with component libraries/design systems; proven use of AI tools; familiarity with backend (Java/Go) and AWS is beneficial.
React, Figma, Claude Design, Java, Go, AWS
3d
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Frontend Software Engineer - Senior (TS Clearance)
Denver, Colorado, United States
OnsiteFull Time
Senior frontend engineering experience with modern web development, JavaScript, RESTful APIs, Git/GitHub, agile methods, and Angular or React; active Top Secret clearance required and TS/SCI with Poly eligibility.
HTML5, CSS3, LESS, SASS, Bourbon, Twitter Bootstrap, JavaScript, jQuery, Backbone.js, Ember.js, D3, RESTful APIs, Git, GitHub, Rails, Express, Django, Angular, React, Java, Kubernetes, Docker, Jenkins, Puppet, SAFe, Scrum, Lean
2d
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Senior Software Engineer (Frontend) - Scribd Core
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Washington, D.C. or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas
$124k-$226k/yr HybridFull Time
6+ YOERequires 6+ years of frontend software engineering experience, JavaScript/TypeScript and React expertise, modern web framework experience, architecture knowledge, performance optimization, testing, and strong collaboration skills.
JavaScript, TypeScript, React, Next.js, Microfrontend, monorepos
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Senior Frontend Software Developer
Aurora, Colorado, United States
$87k-$165k/yr OnsiteFull Time
5+ YOEBachelor's in STEM and 5+ years relevant experience; proficiency with JavaScript and Angular; UI development experience; ability to obtain and maintain TS/SCI clearance; experience with Java or C++ preferred; familiarity with Confluence, Eclipse, Jira, and Git.
JavaScript, Angular, Java, C++, Confluence, Eclipse, Jira, Git
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Senior Frontend Software Engineer - Ground Software
Laurel or Austin or Greenwood Village
$120k-$190k/yr HybridFull Time
6+ YOERequired: Bachelor's in CS or related, 6+ years frontend experience, deep React and TypeScript, design system and component library experience, Yarn/Babel/Material-UI, Git, REST APIs, mentoring ability, and ability to obtain security clearance.
React, TypeScript, C# .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, TanStack Query, WebAssembly (WASM), WebGL
3d
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Front End Software Developer
Sterling or Sarasota or Denver or Aurora
$82k-$172k/yr OnsiteFull Time
5+ YOERequires 5+ years of front-end development, a bachelor's degree, JavaScript/TypeScript, HTML/CSS, Git, REST APIs, Agile collaboration, TS/SCI with CI poly, and Security+ certification or willingness to obtain it.
TypeScript, Java, Spring Boot, Spring Framework, REST, JavaScript, Vue 3, Bootstrap, Vite, Mockito, JUnit, Cypress, PostgreSQL, MySQL, Redis, AWS DynamoDB, Amazon Web Services, Amazon EC2, Amazon RDS, Amazon S3, Amazon SNS, Amazon SQS, Lambda, Git, Jira, Confluence, GitLab CI/CD, SonarQube, SAST, React, Angular, Vue.js, HTML, CSS, Docker, Kubernetes
3d
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Front End Software Developer
Sterling or Sarasota or Denver or Aurora
$82k-$172k/yr OnsiteFull Time
5+ YOERequires 5+ years of front-end development, bachelor's degree, JavaScript/TypeScript, HTML/CSS, Git, REST APIs, Agile collaboration, TS/SCI with CI poly, and Security+ certification or willingness to obtain.
TypeScript, Java, Spring Boot, Spring Framework, REST, JavaScript, Vue 3, Bootstrap, Vite, Mockito, JUnit, Cypress, PostgreSQL, MySQL, Redis, AWS DynamoDB, AWS EC2, AWS RDS, Amazon S3, Amazon SNS, Amazon SQS, Git, Jira, Confluence, GitLab CI/CD, SonarQube, SAST, React, Angular, Docker, Kubernetes, GitLab, WebSockets
2mo
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Staff Software Engineer, Front End
Denver or Long Beach
$185k-$320k/yr OnsiteFull Time
12+ YOELead frontend initiatives, define roadmaps, and mentor engineers in a high-impact space-focused platform.
HTML, CSS, JavaScript, TypeScript, React, GraphQL, REST, WebSockets, gRPC, WebGL, Three.js, Design Systems, Testing Frameworks
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AVP, Frontend Outsystems Manager
San Diego or Irvine or Las Vegas or Centennial
$110k-$140k/yr RemoteFull Time
5+ YOE1+ MgmtAVP Frontend Outsystems Manager with 5+ years full-stack web development; Outsystems, Java, JavaScript, MVC, Angular/React, TypeScript; 1+ year leadership; experience with distributed teams.
Outsystems, Java, JavaScript, MVC, Angular, React, TypeScript
4d
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Senior Software Engineer, Frontend Platform
United States or San Francisco or New York City or Los Angeles or Boston or Seattle or Washington or San Diego or Chicago or Austin or Dallas or Portland or Denver or Philadelphia or Baltimore or Sacramento or Minneapolis or Miami or Atlanta or Phoenix or Orlando or Las Vegas or Salt Lake City or Madison or Birmingham or San Antonio or Spokane or Toronto
$125k-$210k/yr HybridFull Time
Significant production software experience with deep React and TypeScript expertise, full-stack fundamentals, mobile experience, design systems, Figma, and hands-on AI-assisted development.
React, TypeScript, React Native, Figma, Cursor, Claude, Storybook, style-dictionary, Framer Motion, Rive, Lottie, Expo
2w
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Senior Full Stack Developer (Front-End Specialist)
Denver, Colorado, United States
$129k-$161k/yr RemoteFull Time
5+ YOE5+ years building enterprise applications; deep Angular frontend expertise; strong Java/Spring Boot and SQL skills; experience with containerization, cloud (AWS), CI/CD, and collaborating with UX; Bachelor's degree or equivalent.
Angular 17, Java 17, Spring Boot, Spring Web, Spring Data, Spring Security, PostgreSQL, REST APIs, Message Queues, Docker, Kubernetes, CI/CD, Figma, AWS, SQL
5d
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Sr Staff Fullstack Developer (Frontend focused)
Exton or Boulder or Huntsville or Dayton
$136k-$204k/yr OnsiteFull Time
4+ YOEBachelor's with 8 years, master's with 6, or PhD with 4; front-end and back-end development expertise, cloud deployment, web components, Git, Agile, and testing experience.
HTML5, CSS3, JavaScript, React, Angular, C#, Java, Python, Node.js, Docker, Kubernetes, AWS, Microsoft Azure, Git, Jasmine, Karma, Jest, Vitest, Ansys
5d
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Principal SW Engineer/Front-End Developer
Denver, Colorado, United States
$118k-$201k/yr OnsiteFull Time
6+ YOEBachelor's degree (or equivalent) with 6+ years experience; strong frontend web skills (HTML5,CSS3,JavaScript,JS frameworks), Git, agile experience; must be U.S. person and able to hold Top Secret/SCI clearance.
HTML5, CSS3, LESS, SASS, Bourbon, Twitter Bootstrap, JavaScript, jQuery, Backbone.js, Ember.js, D3, Git, GitHub, Rails, Express, Django, Angular, React, Java, Kubernetes, Docker, Jenkins, Puppet
1mo
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Software Engineer II – Portal (Front End)
Atlanta or Denver or Cincinnati or Salt Lake City
$92k-$139k/yr HybridFull Time
6+ YOE6+ years software development experience; 3+ years Angular front-end; 2+ years ExpressJS; experience with Node.js, TypeScript, relational databases, REST APIs and AWS; strong communication and SDLC knowledge.
Node.js, TypeScript, Angular, Playwright, MariaDB, AWS EC2, AWS S3, API Gateway, Git, GitHub, CI, JIRA, Confluence, Qualys, Jenkins, ExpressJS, Postgres, REST APIs
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Senior Software Engineer
Denver, Colorado, United States
$160k-$185k/yr HybridFull Time
5+ YOE5+ years backend software development with .NET/.NET Core and Web/REST APIs; frontend experience with React/Vue/Angular/Svelte and Typescript; SQL experience; unit testing; AI/LLM development experience; strong communication and problem-solving.
Cognition AI, Devin, Cline, Replit, Cursor, Azure OpenAI, Anthropic, GitHub, Azure DevOps, Bit, Microsoft Visual Studio Code, Microsoft Visual Studio, SQL Azure, SQL Server, Unknit, MSTest, PostgreSQL, Docker, Azure, AWS, GCP, GitHub Copilot, Windsurf, Codex
1mo
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Senior Embedded Software Engineer
Louisville, Colorado, United States
$131k-$231k/yr OnsiteFull Time
5+ YOE5+ years Rust development experience, bachelor's degree or equivalent, embedded Linux and FPGA integration experience, familiarity with C++, frontend tech, and system-level interfaces (SPI, I2C, UART, PCIe, Ethernet).
Rust, C++, JavaScript, TypeScript, React, WebAssembly (WASM), Embedded Linux
3w
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Senior Software Engineer
Denver, Colorado, United States
$150k/yr HybridFull Time
Strong backend/API skills, solid SQL and relational design, frontend proficiency, CI/CD troubleshooting, ability to own features end-to-end, clear written communication.
Python, C#, PostgreSQL, TypeScript, React, AWS, LLM APIs, EHR, CI/CD
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Senior Full Stack Product Engineer
Denver, Colorado, United States
OnsiteFull Time
Senior full-stack engineer with experience shipping GenAI/LLM features, React/TypeScript frontend, Node.js/Python backend, cloud (GCP/AWS/Azure), strong product judgment and cross-functional leadership.
React, TypeScript, Node.js, Python, Google Cloud Platform, GCP, AWS, Azure
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Senior Software Engineer (Full-Stack)
Denver, Colorado, United States
$160k-$210k/yr OnsiteFull Time
5+ YOE5+ years software engineering experience with frontend depth; strong React and TypeScript skills; experience with canvas/2D rendering, WebRTC, data visualization; backend fluency in Python/Django, GraphQL, and PostgreSQL; AWS and container experience; testing and observability; participate in on-call rotations.
React, TypeScript, Django, Python, GraphQL, PostgreSQL, WebRTC, Storybook, AWS, WebSocket
3mo
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Staff Software Engineer
Denver, Colorado, United States
$150k-$180k/yr OnsiteFull Time
8+ YOESenior software engineer with 8+ years of experience, strong system design, backend and frontend skills, SQL, cloud, DevOps, and production ownership.
TypeScript/JavaScript, React, API contracts (tRPC), PostgreSQL, ClickHouse, Playwright, AWS, Terraform, Docker, CI/CD
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