62 frontend developer engineer jobs at 41 companies in Westminster, CO

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1mo
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Lead Frontend Engineer
Chicago or Peoria or Westminster or Irving or Dallas or Denver
$128k-$209k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
10+ YOE10+ years software engineering with frontend architecture expertise; strong Angular, RxJS, NgRx, JavaScript/TypeScript; experience with Ionic/Capacitor, WebGL/Three.js, WebSockets, cloud platforms, CI/CD, and real-time/3D visualization.
Angular, Ionic, Capacitor, RxJS, NgRx, JavaScript, TypeScript, WebGL, Three.js, WebSockets, Unity, Unreal, AWS, Azure, GCP, Node.js, NVIDIA Omniverse, CI/CD, AI/ML
3mo
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Frontend Engineer
San Francisco or Golden or Toulouse
$140k-$190k/yr OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in TypeScript, HTML, CSS; experience with Vue or React; SPA development; GraphQL; testing (Vitest/Jest/Cypress).
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components, Lit
3mo
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Principal Software Engineer - Frontend, Developer Experience
San Francisco or Phoenix or Denver or Austin or Jacksonville or Bridgeport or Boston or New York City or Atlanta
RemoteFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
5+ YOEDevelop frontend UIs with TypeScript/React; collaborate with product/design; contribute to architecture and testing; mentor colleagues.
TypeScript, React, GraphQL, Node.js
2w
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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
4w
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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
1mo
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Software Engineer II (Frontend)
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$103k-$186k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
4+ YOE4+ years frontend software development; strong TS/JS/React; Next.js; Rails familiarity; API integration; accessibility; testing; A/B testing; AI tools.
TypeScript, JavaScript, React, Next.js, Ruby on Rails, REST, GraphQL, Redis, Kafka, MySQL, Terraform, CI/CD, Monorepos, UI Libraries, AI Tools
1mo
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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
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
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
1w
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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
3w
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Senior Software Developer, Front-end
Denver or Sterling
$99k-$207k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOEActive TS/SCI clearance (polygraph preferred), 7+ years software development, proficiency in JavaScript/TypeScript, Linux experience, Security+ (or willingness), strong system design, leadership and cloud-native development experience.
JavaScript, TypeScript, Linux, Svelte, WebSocket, Kubernetes, RESTful API
1w
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Front-End Software Developer
Denver, Colorado, United States
$76k-$156k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEBachelor's in CS or related, TS/SCI with polygraph, 3+ years' relevant experience. Proficiency with JavaScript/TypeScript, HTML/CSS, RESTful APIs, WebSockets, modern JS frameworks and Agile practices.
JavaScript, TypeScript, HTML, CSS, RESTful APIs, WebSockets, Browser APIs, Angular, Svelte, Vue, Bootstrap, Tailwind, SASS, NPM, Node, Kubernetes, CI/CD, AWS
1d
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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
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
Worldpay
Worldpay: Global payment processing and merchant technology solutions for businesses.
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
3mo
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Lead Sr Staff Software Engineer - Front End Fundamentals
Bellevue or Boulder or Chicago or Denver or Irvine or Los Angeles or New York or San Francisco or San Jose or Seattle or Ventura
$166k-$305k/yr HybridFull Time
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
13+ YOE1+ MgmtSenior frontend leadership role requiring 13+ years of software development, 1+ year of people management, strong TypeScript/JavaScript or other languages, cloud and distributed systems experience, and mentoring.
TypeScript, JavaScript, C#, Java, C, C++, Python, SQL, Scala
1mo
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Frontend Full Stack Staff Software Engineer, AI Platform Experiences
New York City or Seattle or San Francisco or Denver or Los Angeles or San Jose
$163k-$247k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
8+ YOE8+ years software development experience (4+ building scalable platforms), strong front-end skills, experience with Ruby on Rails, React, GraphQL, platform/AI experience preferred, mentoring and cross-functional collaboration skills.
Ruby on Rails, React, GraphQL
2mo
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Software Engineer, Infrastructure/Developer Tooling (Hybrid)
Toronto or Denver
$109k-$128k/yr HybridFull Time
Homebase
Homebase: Provides scheduling, payroll, and HR software for hourly teams.
3+ YOE3+ years of software or infrastructure engineering; experience with internal tooling, cloud (AWS) and CI/CD; frontend/backend versatility; strong developer experience focus.
Ruby, Golang, Terraform, AWS, CI/CD, Observability, Infrastructure as Code, Containerization
3mo
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Software Engineer, Labs
San Francisco or New York or Denver or Remote
HybridFull Time
Ambrook
Ambrook: Financial management platform for agricultural and industrial businesses.
Experience shipping AI/LLM-powered features; full-stack work across frontend, API, prompts, and evals; ability to scope from ambiguity and own projects.
Frontend, APIs, LLM, Prompting, Evaluation Framework
2mo
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Design Engineer
Austin or Denver or Indianapolis or Los Angeles or Minneapolis or Nashville or New York or Salt Lake City or San Francisco or Seattle
$150k-$170k/yr RemoteFull Time
Givebutter
Givebutter: Fundraising and CRM platform for nonprofit organizations.
4+ YOE4+ years frontend engineering; strong JS/TypeScript; HTML/CSS; modern frameworks (Astro/React/Next.js/Svelte); animation and analytics integration; accessible, performance-focused frontend; Git workflows; collaboration with design and product teams.
JavaScript, TypeScript, Astro, React, Next.js, Svelte, GSAP, Framer Motion, View Transitions API, Lottie, PostHog, LaunchDarkly, Segment, Amplitude
3mo
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Software Engineer II
Denver or Lexington or Waltham
$78k-$120k/yr HybridFull Time
Xometry
XometryNASDAQ: XMTR: Operates an AI-powered marketplace for custom manufacturing and prototyping.
4+ YOE4+ years frontend development with React/TypeScript; AWS experience; marketplace product exposure; strong leadership and communication.
React, TypeScript, AWS