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# UI Engineer - BAS UI Framework

- **Company:** Loyal Source LLC
- **Location:** Glendale, WI, United States
- **Experience:** Experienced
- **Salary:** $124,800.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Agile Methodology, Application Performance Management, Automation of Tests, C Sharp (Programming Language), Code Coverage, Continuous Integration, Database Applications, Software Debugging, Human-Computer Interaction, Supervisory Control and Data Acquisition (SCADA), Performance Tuning, Responsive Web Design, Software Engineering, Systems Integration, TypeScript, Web Content Accessibility Guidelines, Web Applications, ReactJS, Software Troubleshooting, Backend, Git, Material UI, Information Technology, Real Time Data, Front End Software Development, Restful APIs
- **Published:** October 7, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=681766adcdfdcd59

## About the Role

Loyal Source is seeking a skilled UI Engineer with strong React and TypeScript experience to support the development of a next-generation Building Automation System (BAS) user interface platform., * Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)

 * 4+ years of experience building production web applications
 * Strong hands-on experience with:
 + React
 + TypeScript
 + HTML/CSS
 + Responsive web design
 * Experience integrating with REST APIs and data-driven applications
 * Experience building, debugging, and optimizing front-end applications
 * Knowledge of testing frameworks and test coverage practices
 * Familiarity with Git, pull requests, CI/CD, and Agile development
 * Strong troubleshooting and problem-solving skills, * .NET/C# experience
 * Building Automation Systems (BAS) experience
 * SCADA or industrial automation experience
 * Experience with accessibility standards (WCAG)
 * Experience with real-time data applications and streaming APIs, A strong front-end engineer with recent React and TypeScript experience, proven experience building modern web applications, and a solid understanding of API integration, testing, performance optimization, and Agile development practices. Experience with BAS, SCADA, or .NET technologies is a plus.

## Description

* Develop and maintain reusable React/TypeScript UI components
 * Build new user-facing features and workflows
 * Integrate applications with APIs and backend services
 * Troubleshoot and resolve application defects
 * Optimize application performance and user experience
 * Create and maintain automated tests
 * Participate in Agile ceremonies and collaborate with the development team