KellyMitchell Group · 13 hours ago
UI Developer
Greenwood Village, CO
Contract
Onsite
Mid Level
$104K/yr - $123K/yrKellyMitchell Group is seeking a UI Developer to join their team in Greenwood Village, Colorado. The role involves building and maintaining front-end applications using React, TypeScript, and JavaScript, as well as designing reusable UI components and integrating applications with RESTful APIs.
Human ResourcesInformation TechnologyStaffing Agency
Responsibilities
Build and maintain front-end applications using React, TypeScript, and JavaScript
Design and implement reusable UI components with Material UI (MUI) or similar libraries
Manage application state using React Context, Redux, or related state management tools
Integrate front-end applications with RESTful APIs and backend services
Implement authentication and authorization using OAuth2 / OpenID Connect
Write clean, maintainable code and create unit tests for React applications
Configure, build, and package applications using Webpack
Troubleshoot and support CI/CD pipelines (GitLab or similar)
Deploy and support applications using Node.js or NGINX
Participate in Agile development and contribute to iterative releases
Qualification
Required
Build and maintain front-end applications using React, TypeScript, and JavaScript
Design and implement reusable UI components with Material UI (MUI) or similar libraries
Manage application state using React Context, Redux, or related state management tools
Integrate front-end applications with RESTful APIs and backend services
Implement authentication and authorization using OAuth2 / OpenID Connect
Write clean, maintainable code and create unit tests for React applications
Configure, build, and package applications using Webpack
Troubleshoot and support CI/CD pipelines (GitLab or similar)
Deploy and support applications using Node.js or NGINX
Participate in Agile development and contribute to iterative releases
Strong proficiency in JavaScript (ES6+) and TypeScript
Hands-on experience building applications with React and React Router
Experience with state management libraries such as React Context and Redux
Strong UI development skills using Material UI (MUI) or similar UI/CSS frameworks
Solid understanding of RESTful APIs, including integration and best practices
Experience writing and maintaining unit tests for React applications
Working knowledge of CORS and browser security concepts
Experience with OAuth2 / OpenID Connect for authentication and authorization
Proficiency with Git and source control workflows
Experience with Webpack and front-end build tools
Ability to run and troubleshoot CI/CD pipelines (GitLab or similar)
Experience deploying and supporting applications using Node.js or NGINX
Familiarity with Agile development practices
Benefits
Medical, Dental, & Vision Insurance Plans
Employee-Owned Profit Sharing (ESOP)
401K offered
Company
KellyMitchell Group
KellyMitchell is a HR firm for IT and technical staffing for organizations globally.
Founded in 1998
1001-5000 employees
H1B Sponsorship
KellyMitchell Group has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2021 (2)
2020 (2)
Funding
Current Stage
Late StageLeadership Team
Cassandra Sanford
CEO and Owner
Gina Chisholm
Vice President - Business Operations
Company data provided by crunchbase