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80 frontend developer jobs at 49 companies in Castle Rock, CO

1mo
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Frontend Engineer
Toulouse or San Francisco or Golden
OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in TypeScript, HTML, CSS, experience with Vue.js or React, SPA development, GraphQL APIs, and unit/integration testing (e.g., Vitest, Jest, Cypress). Web Components and geospatial libraries are a plus.
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components (Lit), Leaflet, Mapbox, CesiumJS
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1mo
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Senior Frontend Engineer
Denver, Colorado, United States
$160k-$185k/yr OnsiteFull Time
AgentSync
AgentSync: Modern insurance compliance and producer management software.
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
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1d
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Frontend Software Engineer - Senior (TS Clearance)
Denver, Colorado, United States
OnsiteFull Time
Solerity
Solerity: Provides IT and engineering services for federal government agencies.
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
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1mo
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Senior Frontend Software Developer
Aurora, Colorado, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
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
York Space Systems
York Space SystemsNYSE: YSS: Designs and manufactures modular spacecraft platforms and mission solutions.
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
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3w
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Junior Front-End Developer
Westminster, Colorado, United States
$88k-$155k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
2+ YOEBachelor's or equivalent, 2+ years related experience, working knowledge of Python and JavaScript, familiarity with PyQT/ReactJS/Dash/Streamlit, HTML/CSS, basic AI/ML concepts, and ability to work onsite in Denver.
Python, JavaScript, PyQT, ReactJS, Dash, Streamlit, HTML, CSS, Git, Azure Machine Learning, Roboflow
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22h
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Front End Software Developer
Sterling or Sarasota or Denver or Aurora
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
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
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22h
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Front End Software Developer
Sterling or Sarasota or Denver or Aurora
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
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
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1mo
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Frontend Software Engineers - Colorado Springs
Colorado Springs, Colorado, United States
$75k-$150k/yr OnsiteFull Time
In-Depth Engineering
In-Depth Engineering: Develops combat systems and radar software for the US military.
2+ YOEU.S. citizen with valid passport and active Secret clearance, Bachelor's in a STEM field, 2+ years professional experience, frontend development experience with Angular, JavaScript, HTML, CSS, familiarity with Docker and REST APIs, and UI/UX tooling experience.
Figma, MockFlow, UXPin, Axure, Angular, javascript, CSS, HTML, Docker, REST APIs, Cypress, Selenium, Playwright, Jest, Gitlab CI/CD, Helm, Kubernetes, gRPC, Python, Flask, Figma AI, UX Pilot, Google Stitch
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2mo
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Staff Software Engineer, Front End
Denver or Long Beach
$185k-$320k/yr OnsiteFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
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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1mo
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Front End Software Engineer
San Francisco or Denver or New York City
$150k-$200k/yr OnsiteFull Time
Candid Health
Candid Health: Automates medical billing and revenue cycle management for healthcare providers.
3+ YOEBachelor's in CS or similar, 3+ years software engineering experience, proficiency with HTML, CSS, React, TypeScript and API development; familiarity with SSR, GraphQL, Tailwind, Firebase, and Codegen; strong UX instincts.
HTML, CSS, React, TypeScript, API, GraphQL, Tailwind, Firebase, Codegen
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2mo
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AVP, Frontend Outsystems Manager
San Diego or Irvine or Las Vegas or Centennial
$110k-$140k/yr RemoteFull Time
Axos Financial
Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.
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
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2mo
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Front-End Software Engineer
Colorado Springs, Colorado, United States
$122k-$157k/yr OnsiteFull Time
Caliola
Caliola: Develops secure and resilient solutions for mission-critical communications.
7+ YOE7–12 years of front-end software engineering; strong TypeScript/JavaScript; Vue/React/Solid/Angular experience; server-side tech exposure; CI/CD; U.S. government security clearance; Bachelor's in CS or related field.
TypeScript, Vue.js, Node.js, Ionic, Tauri, Git, GitLab
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2w
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Front End Software Engineer
Englewood or Denver
$140k-$180k/yr OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Bachelor's in a related field, TS/SCI clearance required, experience with Java/JavaScript/Python and front-end frameworks, strong communication and problem-solving skills.
Java, Python, JavaScript, Angular, React, ElasticSearch, TypeScript, ELK, Redis, Web Services (REST), Docker, LXC, Kubernetes, Helm, Machine Learning, Android, NoSQL, SQL, Xmidas, Digital Signal Processing, Svelte
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1d
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Software Engineer – Frontend Web Developer
Littleton or Denver
$134k-$181k/yr OnsiteFull Time
Four Sea Group
Four Sea Group: Technical mission support and software engineering for aerospace.
4+ YOEBachelor’s degree or equivalent practical experience, 4+ years of software or frontend development, active Top Secret clearance, and experience with frontend applications, JavaScript, APIs, Git, Agile, and accessible interfaces.
HTML5, CSS3, LESS, SASS, Bootstrap, Bourbon, JavaScript, Angular, React, Git, GitHub, GitLab, Rails, Express, Django, RESTful APIs, Jenkins, Puppet, Docker, Kubernetes, D3, SAFe
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2mo
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Senior Front-End UI/UX Engineer
Colorado Springs, Colorado, United States
$130k-$170k/yr OnsiteFull Time
GXM Technologies
GXM Technologies: Delivering rapid software solutions and innovation for defense organizations.
8+ YOEU.S. citizen with active TS/SCI clearance, Bachelor's in a related field, 8+ years front-end/UI/UX experience, expertise with React/Angular/Vue, TypeScript, JavaScript, HTML, CSS, and data visualization.
React, Angular, Vue, TypeScript, JavaScript, HTML, CSS, Figma
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1mo
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Staff Software Engineer (Frontend Developer)
Colorado Springs or King of Prussia or California or Massachusetts or New York or Colorado or Hawaii or Illinois or Maryland or Minnesota or New Jersey or Vermont or Washington or District of Columbia
$114k-$227k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
5+ YOEFrontend development with Angular, JavaScript, CSS, HTML; REST and Docker experience; UI/UX tools and test frameworks; 5+ years relevant experience; Secret clearance and U.S. citizenship required/preferred candidates in CO or PA.
Angular, JavaScript, CSS, HTML, REST, Docker, Figma, MockFlow, UXPin, Axure, Cypress, Selenium, Playwright, Jest, Kubernetes, Helm, GitLab CI/CD, gRPC, Python, Flask
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3d
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Sr Software Engineer/Front-End Developer
Denver, Colorado, United States
$97k-$165k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
4+ YOEBachelor's degree plus 4 years experience (or equivalent), US person required, Top Secret/SCI clearance required or obtainable, experience with modern front-end frameworks, RESTful APIs, Git, and agile methods.
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
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1d
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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
Roo
Roo: Digital marketplace connecting veterinary professionals with animal hospital shifts.
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
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1w
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Retail Front End Supervisor - Full-Time
Sheridan, Colorado, United States
$18-$20/hr OnsiteFull Time
Burlington Stores
Burlington StoresNYSE: BURL: Off-price retailer of apparel, footwear, and home goods.
1+ YOEMinimum 1 year supervisory retail experience, able to lift 40 lbs, coach and develop associates, schedule and manage breaks, work nights/weekends/holidays, strong interpersonal and decision-making skills.
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