UI Engineer – BAS UI Framework

UI Engineer – BAS UI Framework

Location: Glendale, WI

Loyal Source is seeking a skilled UI Engineer with strong React and Type Script experience to support the development of a next-generation Building Automation System (BAS) user interface platform.

PAY: $60/hr

• 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
  • Type Script
  • 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

• Develop and maintain reusable React/Type Script 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

A strong front-end engineer with recent React and Type Script 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.

Please note: this position is notional and contingent upon the award of a government contract.

About Notional Opportunities:

Notional opportunities are roles in the planning stages and contingent on contract awards. By applying to notional positions, you can express early interest, enhancing your employment prospects and positioning yourself at the forefront of potential job opportunities. This proactive approach gives you an edge and boosts your visibility to employers, making it a strategic choice for those eager to explore future roles and expand their professional network.

About Loyal Source

Loyal Source provides healthcare and technology solutions designed to improve outcomes and support mission-critical operations. Guided by innovation and purpose, we help organizations achieve success across complex challenges worldwide. Loyal Source is a military friendly employer and proud partner of the Military Spouse Employment Partnership program.

Loyal Source uses AI‑powered voice screening as part of our application process. After you apply, you will receive a brief qualification survey via text or email. Candidates who meet the position requirements will then be invited to complete a quick AI‑powered voice assessment. This easy, no‑scheduling‑required process helps us and the candidate move the hiring process forward faster.

We are committed to providing equal employment opportunities to all applicants. If you have a disability or medical condition and need a reasonable accommodation to participate in this step of the hiring process, you may request an alternative method or accommodation at any time by contacting Human Resources at

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You can also request reasonable accommodations by contacting a telecommunications relay service by dialing 711 for direct access and assistance (tty).

This contractor and subcontractor abides by the requirements of 41 CFR 60-300.5(a) and 41 CFR 60-741.5(a).
These regulations prohibit discrimination against qualified individuals on the basis of protected veteran status or disability, and require affirmative action by covered prime contractors.