Web development jobs in Boulder, CO

 ...for clarity and craftsmanship, Nexee is the place. Position Overview: We are seeking a Senior UI Software Engineer to lead development of a an enterprise-grade interface. You will architect highly interactive, intelligent User Interfaces using a unified .NET and WiseJ... 

 ...thrives in collaborative settings, takes ownership across the full development lifecycle, and is motivated by building interfaces that bridge...  ...frontend software, tests, and documentation for geospatial web interfaces Design, prototype, and implement modular React components... 

Duration: 8-9 Months Job Description: We are seeking an experienced Enterprise Applications Interaction/Visual Designer to join our team. This role focuses on creating intuitive, elegant, and user-centered experiences across digital products. You will collaborate...

  Want a sleepy 9-5 gig? Keep looking. No boring work or corp-speak here -- we’re a TechStars startup. There are three of us (you make it four). And we’re about to change the world. Seriously.   Simple Energy is building a multi-platform app on game mechanics...

 ...Qualifications/Experience:  ~3+ years professional experience writing web backend ~5+ years professional software engineering ~...  ...and basic system administration ~Familiarity with JavaScript development and at least one JavaScript framework ~Proficiency using and developing... 

 ...with technical depth and business acumen. ~ Strong understanding of modern application architectures, RESTful APIs, mobile and web development frameworks, and cloud services (AWS, GCP, or Azure). ~ Experience with at least one major programming language (e.g.,... 

 ...architecture and system design discussions, with an eye toward performance, maintainability, and extensibility Support DevOps and local development setups (Docker, Kubernetes, Azure DevOps), CI/CD pipelines, and observability instrumentation Required Qualifications ~7+... 

Summary: Circadence is hiring a Staff Front End Engineer to lead the development of the RangeGPT user interface—a cutting-edge cyber range design and analysis tool that combines a WYSIWYG canvas editor with LLM-driven agentic workflows. You’ll be responsible for building... 

 ...ideal candidate will have a passion for creating user-friendly interfaces and a deep understanding of both front-end and back-end development. Experience with the Department of Defense (DoD) projects and Gitlab is a plus. Essential Duties & Responsibilities Implement... 

 ...market needs.  This individual will work closely with Business Development and Sales teams to identify customer interests and translate...  ...PREFERRED QUALIFICATIONS   ~ Experience with React and web-based UI development for demos.  ~ Experience with radar systems... 

 ...multiple departments. The position involves adhering to established development practices for planning, design, source control, and testing,...  ...Science or Software Engineering 5+ years of experience in web-based application development Experience creating C#... 

 ...equivalent practical experience. ~2 years of experience with software development or 1 year of experience with an advanced degree in an industry...  ...to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from...