221 reactjs developer jobs at 118 companies in Fraser, CO
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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
1mo
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Principal Software Engineer
Golden, Colorado, United States
$195k-$250k/yr HybridFull Time
8+ YOE8+ years full-stack engineering experience, 5+ years contributing to architecture, AWS/cloud experience, Java Spring/Python or Rust, SQL, ReactJS, REST/RPC, experience with resilient distributed systems and mentoring skills.
Anthropic Claude, Java Spring, Python, Rust, SQL, ReactJS, REST, RPC, AWS, CI/CD
2d
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Software Engineer – Frontend Web Developer
Littleton or Denver
$134k-$181k/yr OnsiteFull Time
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
1mo
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App Engineer
Denver, Colorado, United States
$100k-$115k/yr HybridFull Time
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
1w
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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
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
3w
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Software Engineer - iOS/Android
Strongsville or Denver or Pittsburgh or Birmingham or Dallas
$60k-$150k/yr OnsiteFull Time
5+ YOEBachelor's degree and 5+ years software development experience, 3+ years Java enterprise development, Spring Boot, REST, microservices, SQL, Git, frontend and mobile development experience.
Java, Java 11, Java 17, Spring Boot, Spring MVC, Hibernate/JPA, REST APIs, Microservices, Maven, Gradle, Angular, React, Vue, JavaScript, TypeScript, HTML5, CSS3, Swift, Objective-C, Kotlin, Android SDK, iOS SDK, React Native, Flutter, Oracle, PostgreSQL, SQL Server, MongoDB, Azure, AWS, Docker, Kubernetes, Git, Jenkins, SonarQube, Jira, Postman, Kafka, GitHub Actions, Azure DevOps, GitLab
5d
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Sr Web Developer
Boulder, Colorado, United States
$163k-$245k/yr HybridFull Time
7+ YOEBachelor's in Computer Science or equivalent,7+ years full-stack web development,expert CSS/JavaScript,TypeScript,React,Next.js,Webpack,Storybook,Git,CI/CD,experience with CMS and web performance/accessibility.
Next.js, Webpack, JavaScript, TypeScript, Storybook.js, React, Git, Sanity.io, CI/CD
1w
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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
1mo
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AI Software Developer
Grand Rapids or Denver or Chicago or Massachusetts or New Hampshire or New York or North Carolina or Oregon or Texas or Utah or Vermont or Virginia or United States or Canada
$120k-$160k/yr RemoteFull Time
3+ YOE3+ years professional software development; experience with Claude Code and Anthropic API; strong TypeScript and React; knowledge of prompt engineering, REST APIs, async patterns; ability to review AI-generated code and write tests.
Claude Code, Anthropic API, TypeScript, React, REST APIs
2d
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Junior Software Engineer
Englewood or Denver
$75k-$85k/yr OnsiteFull Time
2+ YOERequires 2-4 years of software engineering, Azure cloud development, full-stack development, containers, RESTful APIs, modern programming languages, CI/CD, security, Agile/Scrum, and Azure services experience.
Azure, Kubernetes, Azure Kubernetes Service, React, Angular, .NET Core, Node.js, C#, TypeScript, Git, Azure DevOps, Cosmos DB, Microsoft SQL Server, Azure SQL Database, Web Apps, API Apps, Logic Apps
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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Senior Software Engineer, Offers
Denver, Colorado, United States
$125k-$155k/yr HybridFull Time
Experience leading development teams, mentoring developers, cloud platform experience, knowledge of React, Typescript, Go/Golang, SQL and Kafka; strong problem-solving and delivery focus.
Go, Typescript, React, SQL, Kafka, GCP, C#, .net, MSSQL, WPF
4w
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Applications Engineer III - Full Stack Developer
Louisville, Colorado, United States
$95k-$166k/yr HybridFull Time
5+ YOEBachelor's in engineering/computation plus 5+ years (or MS/PhD equivalents), strong experience with containerized and desktop app development, git and CI/CD, C/C++/Python/Rust/Bash, and familiarity with communication protocols.
C, C++, Python, Rust, Bash, Git, Docker, Docker Compose, Podman, Kubernetes, CI/CD, JavaScript, HTML, React, AWS, Azure, Google Cloud Platform (GCP)
1mo
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Software Engineer
United States or Boston or New York City or Denver
$110k-$125k/yr RemoteFull Time
2+ YOE2+ years professional software engineering experience; full‑stack web development using TypeScript, React, Express, and MongoDB; strong testing, collaboration, and productive use of AI coding tools.
TypeScript, React, Express, MongoDB
2mo
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AppSec Engineer
Austin or Chicago or Denver or Los Angeles or San Diego or San Francisco or United States or Australia or New Zealand or Canada or United Kingdom or Philippines
$131k-$169k/yr HybridFull Time
4+ YOE4+ years security/development experience embedding AppSec in SDLC, cloud (Azure/AWS/GCP), SAST/SCA/DAST configuration, CI/CD security, code review, Python/PowerShell/Bash, and strong communication skills.
Microsoft .NET/C#, JavaScript, React, EmberJS, Python, Azure, AWS, GCP, PowerShell, Bash, Claude Code, GitHub Co-Pilot, Portswigger Burp, SAST, SCA, DAST, GitHub Actions, Azure Devops, EDR, MDM
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
1w
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Senior Software Engineer
Denver, Colorado, United States
$185k-$225k/yr OnsiteFull Time
Experience with full-stack development, microservices, cloud, containers, Kubernetes, REST APIs, modern web frameworks, CI/CD tools, and TS/SCI clearance with CI polygraph.
REST, AWS, GCP, Azure, Kubernetes, Docker, Node.js, NPM, Linux, Subversion, Git, JIRA, Confluence, HTML5, CSS, SASS, Less, Stylus, Browserify, WebPack, Closure, Angular, Ember, React, Redux, Reactive, VueJS, SVG, HTML5 Canvas, WebGL, WebSockets, Svelte, Cesium, OpenLayers, Spring
5d
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Sr. AI Engineer
New York City or Denver or Dallas or Miami or United States
$175k-$215k/yr RemoteFull Time
5+ YOE5+ years building production applications; experience with full-stack development, AI/ML feature design, LLM optimization, strong communication and leadership; healthcare or HIPAA experience a plus.
Node.js, React, TypeScript, Ruby, GraphQL, Postgres
3w
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Software Engineer II
Denver or Fort Collins or Boulder
$90k-$110k/yr HybridFull Time
3+ YOE3+ years software development with C#/.NET and Angular, Azure and SQL Server experience, CI/CD and DevOps familiarity, strong problem solving and communication; U.S. citizenship required.
.NET, Angular, C#, SQL Server, Microsoft Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure SQL, Microsoft Azure Storage, Microsoft Azure Key Vault, GitHub, Azure DevOps, GitHub Actions, BICEP, Terraform, ARM templates, Docker, Kubernetes, ServiceNow, JavaScript, TypeScript, HTML, CSS, React, Vue
4d
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Software Engineer II
Seattle or Denver
$124k-$189k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
2+ YOE2+ years professional software development, Bachelor's in CS or equivalent experience, proficiency in Python, TypeScript, Ruby or C#, backend and frontend web frameworks, SQL, and modern software practices.
Python, TypeScript, Ruby, C#, Next.js, Ruby on Rails, Laravel, Django, Flask, HTML, CSS, JavaScript, JSX, React, Tailwind, Material UI, Bootstrap, REST, GraphQL, SQL, JIRA, Gitlab, Confluence, Linux, Docker, Kubernetes, AWS, S3, RDS, EC2
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