174 javascript react engineer jobs at 89 companies in Colorado
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Senior React Developer/Architect
Centennial, Colorado, United States
$99k-$172k/yrHybridFull Time
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years front-end experience with React and TypeScript; expertise in front-end architecture, Node.js, Express.js, Next.js, AEM/Sitecore, testing (Jest/Cypress), Webpack, state management, and CI/CD.
Vienna or Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis
$84k-$141k/yrOnsiteFull Time
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years developing web applications with JavaScript; TypeScript and web framework experience preferred. Bachelor's degree in CS/engineering/math/GIS. Familiarity with digital cartography, EM visualization, code management, and CI/CD.
Javascript - Senior Developers - AI Training - Colorado Springs, US
Colorado Springs or United States
$50/hrRemoteContract, Part Time
Prolific: Platform connecting researchers and AI developers with verified participants.
BS/MS/PhD in CS or related, professional experience building scalable web apps with JavaScript/TypeScript, ability to solve LeetCode Medium–Hard, deep knowledge of event loop/closures/prototypes/async, strong security and code-quality awareness.
Full Stack Engineer - PHP & Javascript (WordPress)
Denver, Colorado, United States
$103k-$155k/yrHybridFull Time
FareHarbor: Provides booking and business management software for tour operators.
3+ YOE3+ years working with large-scale PHP/JavaScript codebases, strong WordPress and web accessibility knowledge, solid HTML/CSS, UX focus, and experience with modern web performance practices.
Gusto: Cloud-based payroll and HR software for small businesses.
8+ YOE8+ years software development experience; experience with Ruby on Rails, JavaScript/React; building AI agents; mentoring engineers; compliance-domain experience preferred.
Ruby on Rails, JavaScript, React, Claude Code, Codex
Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Kansas or Louisiana or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Mississippi or North Carolina or Nebraska or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or Wyoming
$90k-$135k/yrRemoteFull Time
Storable: Provides technology platform for storage and specialty real estate operators.
3+ YOE3+ years software engineering experience, production WordPress expertise, PHP/MySQL/modern JavaScript, experience using AI-assisted development tools, strong engineering fundamentals and communication.
Flagship Specialty Partners: Provides administrative and operational support to oral surgery practices.
0+ YOE0–2 years experience or strong portfolio; strong data fundamentals (data modeling, SQL, ETL); JavaScript/TypeScript + React and Git familiarity; strong quality-control judgment and ability to direct/verify AI coding agents.
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOERequire TS/SCI clearance,5+ years front-end development,BA/BS in CS or related,proficiency in JavaScript/TypeScript and frameworks (React/Angular/Vue),HTML/CSS,Git,REST,available to work onsite in Sterling,VA or Aurora,CO.
Software Engineer: Full Stack - Python, Java or JavaScript/TypeScript (TS/SCI Clearance Required)
Alexandria or Chantilly or Englewood or Gaithersburg or Saint Louis or Tucson
OnsiteFull Time
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with polygraph ability, Bachelor's in CS or related, proficiency in Python/Java/JavaScript/TypeScript, cloud (AWS/Azure), containers, CI/CD, databases, and secure coding practices.
Kiewit: Provides large-scale construction and engineering services for diverse infrastructure.
3+ YOE3+ years software development; bachelor’s in CS/SE/Engineering or equivalent; strong C#/.NET, REST API, React, SQL, Git, CI/CD; familiarity with BIM, ETL, and cloud platforms.
Arizona or California or Colorado or Florida or Georgia or Illinois or Louisiana or Nevada or New Jersey or New York or North Carolina or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Virginia or Wisconsin
$100k-$125k/yrRemoteFull Time
Albert: A remote-first building educational practice and assessment tools for students and teachers.
Experience building services with functional languages and modern frameworks; proficiency with Elixir/Phoenix, PostgreSQL, React/TypeScript; tested, maintainable code; product-driven experience.
Senior / Staff Applied Research Software Engineer - Emerging Tech
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or Vermont or New York or New Jersey or Washington or California or District of Columbia
$142k-$252k/yrRemoteFull Time
TwilioNYSE: TWLO: Cloud communications platform for building customer engagement applications.
3+ YOEBachelor's degree or equivalent, 3+ years (Senior) or 5+ years (Staff) full-stack software development experience, proficiency in JavaScript/Python/Java, front-end (React/Angular) and/or back-end (Node.js/Springboot), SQL/NoSQL, effective communication, and experience leveraging AI/LLMs.
Bayview Asset Management: Investment management firm specializing in credit and mortgage assets.
6+ YOEBA/BS in CS or engineering required; 6+ years software development experience with C#, JavaScript, SQL/T-SQL, REST/.NET Core; experience with web development, React preferred, relational DB and SDLC (Agile/Scrum).
Software Development Engineer - Developer Platform
Boulder, Colorado, United States
$130k-$196k/yrHybridFull Time
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
5+ YOE5+ years software engineering; 5+ years JVM backend (Java or Kotlin) with Spring Boot; 5+ years TypeScript/JavaScript and React; 3+ years cloud-native (GCP or AWS); Bachelor\u0002s or equivalent experience; EM/agentic system familiarity.
JVM, Java, Kotlin, Spring Boot, TypeScript, JavaScript, React, GCP, AWS, OpenAI-compatible APIs, OpenAI-compatible endpoints, Model Context Protocol (MCP), Cursor, Claude Code, Windsurf, Cline, SSE, WebSockets, Jest, React Testing Library, JUnit, Cypress, LangChain, Kubernetes, Helm, HTML, CSS
Arkansas or Arizona or Colorado or Florida or Georgia or Idaho or Indiana or Illinois or Iowa or Kansas or Massachusetts or Maryland or Minnesota or Missouri or Montana or North Carolina or New Mexico or Nevada or New York or Ohio or Oklahoma or Oregon or Rhode Island or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia
$175k-$220k/yrRemoteFull Time
OpenEd: Personalized online education program partnering with public schools.
5+ YOE5+ years professional software development; deep React, JavaScript, NextJS experience; SQL/PostgreSQL knowledge; mentoring experience; strong communication and remote work capability.
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years software development experience; proficiency with Python, JavaScript/TypeScript, Flask/FastAPI, React, Postgres, SQLAlchemy; TS/SCI clearance required; Bachelor’s in CS or related.
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
4+ YOEBachelor's degree in CS/IT, 4+ years backend engineering, 3+ years with Java and Python, experience with Amazon Connect and AWS services (Lambda, DynamoDB, S3, IAM, CloudWatch), React/JavaScript, AI/RAG/LLM implementation.
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Bachelor's in CS or related field, active TS/SCI clearance (polygraph-able), experience with Java, Python, JavaScript/TypeScript, Angular, React, ElasticSearch/ELK, CI, databases, and strong verbal/written communication.
Java, Python, JavaScript, TypeScript, Angular, React, ElasticSearch, ELK stack, Redis, Web Services (REST), Machine Learning, Data Analytics, Android, NoSQL, SQL, Xmidas, Digital Signal Processing
BS in engineering or related required; experience with satellite ground systems, ground-system tools, cloud, web services, and back-end/front-end languages; eligible for Top Secret/SCI clearance.