69 javascript html developer jobs at 43 companies in Westminster, CO
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Full Stack Engineer - PHP & Javascript (WordPress)
Denver, Colorado, United States
$103k-$155k/yr HybridFull Time
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
1mo
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Principal Software Engineer, Type Script, JavaScript - Video Engineering
Englewood, Colorado, United States
$160k-$240k/yr OnsiteFull Time
10+ YOE10+ years software development experience; Bachelor's degree; strong JavaScript/TypeScript and web browser knowledge; experience with MSE/EME, API design, HTTP video, and computer science fundamentals.
TypeScript, JavaScript, HTML5, Media Source Extensions (MSE), Encrypted Media Extensions (EME)
3w
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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
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
2w
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Senior Full-Stack Lead Developer
Broomfield, Colorado, United States
$89k-$125k/yr HybridFull Time
5+ YOE5+ years C# application development, Web API and Agile experience; SQL Server, HTML/CSS/JavaScript; experience leading developers, BS/MS in CS or related field; strong communication and leadership.
C#, .NET, Web API, Angular, WPF, Microsoft SQL Server, HTML, CSS, JavaScript, Git
1mo
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Senior Software Engineer - Data Engineering
Denver, Colorado, United States
$170k-$190k/yr HybridFull Time
5+ YOE5+ years commercial software development, 2+ years on multi-tenant cloud platforms, experience with Go, JavaScript, HTML, Linux; strong problem-solving and scalable data ingestion expertise.
Go, JavaScript, HTML, Linux, Elasticsearch
2mo
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Sitecore Web Developer
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
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
2w
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Full-Stack Developer II
Broomfield, Colorado, United States
HybridFull Time
4+ YOEBachelor's degree and minimum 4 years full-stack development experience; strong .NET (ASP.NET/MVC), C#, Visual Studio, Microsoft SQL Server, REST/Web API, JavaScript/TypeScript, HTML/CSS skills; U.S. work authorization required.
.NET, ASP, MVC, XML, JSON, TypeScript, JavaScript, jQuery, Visual Studio, Microsoft SQL Server, C#, REST, Web API, HTML, CSS
1mo
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Full Stack Developer
Wheat Ridge, Colorado, United States
OnsiteFull Time
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
3w
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Junior Front-End Developer
Westminster, Colorado, United States
$88k-$155k/yr OnsiteFull Time
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
1w
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Sr. User Interface Engineer (Vue.js)
Westminster, Colorado, United States
$150k-$170k/yr OnsiteFull Time
5+ YOE5+ years front-end experience with strong Vue.js and modern JavaScript skills, HTML/CSS, responsive design, production web app experience, Linux/Unix familiarity, and strong problem-solving.
Vue.js, JavaScript, HTML, CSS, Linux/Unix
1mo
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Advanced Full Stack Developer
Centennial or Tucson or Colorado Springs
$133k-$178k/yr OnsiteFull Time
8+ YOEDegree in Computer Engineering or Computer Science; 8+ years full-stack experience; proficiency in C++, Python on Linux, JavaScript/CSS/HTML, RESTful APIs, SQL and relational data modeling; experience with DevOps/Cloud (GitLab, CI/CD, Docker, Kubernetes, pip); ability to obtain/hold TS/SCI and U.S. citizenship required.
C++, Python, Linux, JavaScript, CSS, HTML, Vue, React, Angular, RESTful APIs, SQL, GitLab, CI/CD, Docker, Kubernetes, pip
1mo
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Software Engineer
Denver, Colorado, United States
$120k-$150k/yr HybridFull Time
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
1mo
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Full Stack Engineer
Denver, Colorado, United States
$95k-$125k/yr HybridFull Time
5+ YOEBachelor's degree, 5+ years JavaScript/TypeScript and web application development experience with Node.js or React.js, strong CS fundamentals, RESTful APIs and MySQL experience, agile delivery and testing skills.
HTML, CSS, JavaScript, TypeScript, Node.js, React.js, MySQL, RESTful APIs, ETL, Agile, Scrum
2w
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Full Stack Software Engineer
Denver or United States
RemoteFull Time
3+ YOEMinimum 3 years modern web development; strong PHP (Laravel/Symfony) and OOP PHP7+; JavaScript (ES7+), TypeScript, React18+, Redux; unit/integration testing (PHPUnit, Jest); API development; Git and Docker experience.
Laravel, Symfony, PHP, JavaScript, TypeScript, React 18, Redux, PHPUnit, Jest, Git, Docker, Babel, Webpack, ESLint, Kubernetes, TestCafe, Playwright, MySQL, HTML5, CSS3
1mo
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Software Development Engineer - Developer Platform
Boulder, Colorado, United States
$130k-$196k/yr HybridFull Time
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
4w
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Software Engineer Sr
Strongsville or Pittsburgh or Cleveland or Dallas or Phoenix or Denver or Birmingham
$86k-$158k/yr OnsiteFull Time
3+ YOE3+ years building Microsoft 365 solutions with SharePoint Online, SPFx, Power Platform, PowerShell, JavaScript/TypeScript, REST/Microsoft Graph, and Git; Bachelor's degree typical.
SharePoint Online, SharePoint Framework (SPFx), Power Platform, PowerShell, JavaScript, TypeScript, REST APIs, Microsoft Graph, JSON, HTML, CSS, Git, Microsoft 365, Power Apps, Power Automate
3w
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Front-End Software Developer
Denver, Colorado, United States
$76k-$156k/yr OnsiteFull Time
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
3w
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Front-End Software Developer
Denver, Colorado, United States
$76k-$156k/yr OnsiteFull Time
3+ YOETS/SCI with polygraph, Bachelor’s in CS or related, 3+ years experience, proficiency with JavaScript/Typescript, HTML/CSS, RESTful APIs/WebSockets, modern JS frameworks, Agile; Kubernetes and CI/CD desired.
JavaScript, Typescript, HTML, CSS, RESTful APIs, WebSockets, Browser APIs, Angular, Svelte, Vue, Bootstrap, Tailwind, SASS, NPM, Node, AWS, Kubernetes, CI/CD
6d
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Sr. Optimizely Developer
Boston or Denver
HybridFull Time
5+ YOE5+ years full-stack web development with 3+ years in Optimizely; deep C#/.NET Core/MVC backend and advanced HTML5/CSS3/JS frontend skills; experience with experimentation, personalization, and CI/CD.
Optimizely CMS, Optimizely Web Experimentation, Optimizely Feature Experimentation, C#, .NET Core, MVC, HTML5, CSS3, SASS, JavaScript, ES6+, jQuery, React, Vue, Project JS, Figma, Git, Azure DevOps, GitHub Actions, GitHub Copilot, ChatGPT, Salesforce, Marketo, Adobe Commerce
2mo
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Software Engineer
Denver, Colorado, United States
OnsiteFull Time, Internship
Bachelor's degree in CS or related field; software development across Mac/Windows/Linux; ability to learn new technologies; U.S. Citizenship.
Java, OSGi, Karaf/ServiceMix, Camel, ActiveMQ, Cassandra, Lucene/Solr, SoapUI, Enterprise Integration standards (WS-*), GeoTools, JavaScript, HTML5, CSS3, Less/Sass, Backbone, Marionette, React, Redux, Bootstrap, Handlebars, Cesium, Ozone Widget Framework (OWF), Ozone Platform (OZP), Grunt, Bower, NPM, WebPack, XML, XSD, XSLT, XPath, XQuery, Geospatial (OGC), CometD, WebSockets, Agile, Scrum processes or tools, Eclipse/IntelliJ, Maven, JUnit, CXF SOAP and REST web services, Git/Stash, JIRA, Confluence, Crucible, Jenkins, SonarQube
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