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126 javascript react developer jobs at 56 companies in Denver, CO

1mo
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Senior React Developer/Architect
Centennial, Colorado, United States
$99k-$172k/yr HybridFull Time
CGI
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.
React, TypeScript, Node.js, Express.js, Next.js, Adobe Experience Manager (AEM), Sitecore, Material UI, GraphQL, Jest, Cypress, React Testing Library, Webpack, Redux, Zustand, Recoil, CI/CD, Storybook, SASS, JavaScript
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2d
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Application Developer - JavaScript
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$84k-$141k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years web application development with JavaScript/TypeScript, experience with modern web frameworks, CI/CD, foundational cartography knowledge, bachelor's degree, and ability to travel up to 25–50%.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, React, Angular, Svelte, Vue, WebGL, ArcGIS Experience Builder, CI/CD
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1w
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Full Stack Engineer - PHP & Javascript (WordPress)
Denver, Colorado, United States
$103k-$155k/yr HybridFull Time
FareHarbor
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.
PHP, JavaScript, WordPress, Gutenberg, Twig, Photoshop, Sketch, React, Webpack, Vite, Babel
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2w
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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
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.
Python, Java, JavaScript, TypeScript, HTML, CSS, JSON, AJAX, REST APIs, React, Angular, Vue.js, Node.js, Spring Boot, Django, Flask, AWS, Azure, MySQL, PostgreSQL, SQL Server, Linux, Windows, Git, GitLab CI, Jenkins, JIRA, Confluence, Docker, Kubernetes, RMF, STIGs, Go, OpenSearch, Elasticsearch, S3, EC2, SQS, SNS, RDS, CloudFormation, Terraform, Ansible, GeoServer, PostGIS, OGC APIs, ESRI ArcGIS
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2w
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Staff Software Engineer, PEO Benefits
Denver or San Francisco or New York or Toronto or Los Angeles or Seattle
$163k-$247k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
8+ YOE8+ years software development experience, PEO experience preferred, experience with large Ruby on Rails and JavaScript/React applications, AI tool fluency, and mentoring ability.
Ruby on Rails, Javascript, React
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Software Engineer (Full Stack)
Denver, Colorado, United States
$125k-$165k/yr HybridFull Time
Bayview Asset Management
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).
C#, JavaScript, SQL, TSQL, SQL Server, React, .NET Core, .NET, ADO, HTML, XML, ASP, AJAX, REST, Web services, Git, Jira, TeamCity, Octopus
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1mo
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Staff Software Engineer
Santiago or Denver or San Francisco or Nashville
$66496k-$78230k/yr HybridFull Time
Checkr
Checkr: Provides AI-powered background checks and identity verification services.
10+ YOE10+ years software development, 3+ years project leadership, backend expertise (Ruby, Node.js), frontend proficiency (JavaScript, React), bachelor’s or equivalent, fluent English, hybrid availability in Santiago (3 days/week).
Ruby, Node.js, JavaScript, React
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3w
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App Engineer
Denver, Colorado, United States
$100k-$115k/yr HybridFull Time
Janus Henderson
Janus HendersonNYSE: JHG: Provides global asset management and investment advisory services.
Proficient PHP and WordPress multisite development, React/Gutenberg block development, SCSS/CSS, JavaScript (ES6+), Git, Composer, npm, Docker, Jira; experience working in Agile teams and integrating third-party APIs.
PHP, WordPress, WordPress VIP, React, JavaScript (ES6+), SCSS, Git, Docker, Composer, npm, Jira, GitHub Copilot, PHP Unit, Veracode
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4d
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Mobile Developer, ServeManager
Denver, Colorado, United States
$96k-$135k/yr HybridFull Time
InfoTrack
InfoTrack: Software platform connecting law firms to courts and litigation services.
3+ YOE3+ years building production mobile apps; strong React Native, TypeScript, modern JavaScript; experience debugging iOS/Android, REST APIs, testing tools; understanding of mobile security and privacy.
React Native, TypeScript, JavaScript, Xcode, Android Studio, REST APIs, TestFlight, Google Play, App Store, Jest, React Native Testing Library, Expo, EAS, Google Play
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1mo
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Staff Software Engineer
San Francisco or Denver or Nashville or Santiago
$190k-$264k/yr HybridFull Time
Checkr
Checkr: AI-powered platform for background checks and identity verification.
10+ YOE10+ years software development experience, 3+ years project leadership; backend expertise (Ruby, Node.js), frontend familiarity (JavaScript, React); experience building scalable systems with automated testing and observability; strong communication and mentoring skills.
Ruby, Node.js, JavaScript, React
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Full Stack Developer
Wheat Ridge, Colorado, United States
OnsiteFull Time
Excel Driver Services
Excel Driver Services: Provides commercial driver license training and safety certification.
Experience building full-stack web and mobile apps using C#/.NET, JavaScript, React Native, HTML/CSS, SQL and Git/GitHub; strong communication, documentation, and collaborative skills.
C#/.NET, JavaScript, HTML, CSS, SQL, React Native, Git, GitHub, Unity
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Software Development Engineer - Developer Platform
Boulder, Colorado, United States
$130k-$196k/yr HybridFull Time
Workday
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
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Software Engineer
Centennial or Warrenton
$95k-$150k/yr OnsiteFull Time
Altamira Technologies
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
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1mo
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Lead Amazon Connect Developer
Englewood, Colorado, United States
$110k-$157k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
8+ YOE8+ years backend engineering experience; bachelor's in CS or related; 6+ years with Java and Python; deep AWS experience (Lambda, DynamoDB, S3, IAM, CloudWatch); experience with Amazon Connect, React, JavaScript, and AI/RAG systems.
Amazon Connect, Java, Python, React, JavaScript, Amazon Bedrock, AWS Lambda, DynamoDB, Amazon S3, IAM, CloudWatch, AWS API Gateway, Amazon Connect Streams API
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2mo
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Full Stack Engineer
Denver, Colorado, United States
$115k-$130k/yr OnsiteFull Time
AIR Communities
AIR Communities: Owns and operates residential apartment communities across the US.
5+ YOE5+ years full-stack development with C#, .NET, React; strong API, database, security, and cloud experience.
C#, .NET, ASP.NET Core, Entity Framework, React.js, JavaScript, TypeScript, SQL, Azure, AWS, GCP, CI/CD, Git
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2w
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Software Developer Technical Lead
Centennial, Colorado, United States
$100k-$120k/yr OnsiteFull Time
Axos Financial
Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.
5+ YOE1+ MgmtBachelor's in CS or related,5+ years full-stack .NET development,1+ year leading technical resources,experience with Angular/React,REST/SOAP,APIs,Agile,strong OOP and communication skills.
.NET framework, C#, Java, JavaScript, MVC, Angular 10, React, TypeScript, jQuery, SQL Server, RabbitMQ, Swagger Docs, REST, SOAP, AWS
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1mo
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Software Engineer
Denver, Colorado, United States
$120k-$150k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
3+ YOE3–5 years software development experience; strong C# and TypeScript/JavaScript; .NET/.NET Core, ASP.NET Core, REST APIs, SQL, Entity Framework; web technologies and frameworks; CI/CD and Git workflows; prompt engineering.
C#, TypeScript, JavaScript, .NET, .NET Core, ASP.NET Core, REST APIs, SQL, Entity Framework, HTML, CSS, React, Angular, Vue, LLM, Git, GitHub, Microsoft Azure, Microsoft Azure DevOps, Microsoft Azure Data Factory, Docker, Kubernetes, AWS, SSAS, MDX, DAX, SSIS, Power BI, SQL Agent Jobs, Stored Procedures, Views
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1mo
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Sitecore Web Developer
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
BDR Solutions
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
8+ YOESenior full‑stack web developer with 8+ years experience, Sitecore and ASP.NET/C# expertise, HTML/CSS/JavaScript and modern front-end frameworks, SQL, MVC5/PWAs, IAT II and CE certifications (DoD 8570/8140), U.S. citizenship required.
HTML, CSS, JavaScript, React, Angular, Vue, Active Server Pages (ASP.NET), C#, Sitecore Content Management System (CMS), SQL, MVC5, PWAs, Jira
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2mo
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Software Engineer II (Signup & Activation)
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-$195k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
4+ YOE4+ years of frontend software development; strong TS/JS and React; Next.js; Rails familiarity; REST/GraphQL; A/B testing and personalization; accessible UX; collaborative, growth-minded; AI-assisted development.
TypeScript, JavaScript, React, Next.js, Ruby on Rails, REST, GraphQL, Redis, Kafka, MySQL, Terraform, CI/CD
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Senior Full Stack AI Engineer
Denver, Colorado, United States
HybridFull Time
Ombud
Ombud: AI-powered sales automation and response management software
6+ YOE6+ years full-stack experience; deep Python; JavaScript/TypeScript and React competence; production LLM integration experience (Anthropic/OpenAI/Google); RAG/embeddings/vector DB knowledge; system design and end-to-end production ownership.
LlamaIndex, Qdrant, Anthropic Claude, OpenAI, Google, Python, JavaScript, TypeScript, React, Node.js, PostgreSQL, Elasticsearch, LangChain, LangGraph, Langfuse, Braintrust, Pinecone, Weaviate, Claude Code
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