UI Engineer - BAS UI Framework (React/TypeScript)

Loyal Source; Glendale (WI); On-site; USD 50,000 - 83,000; Full time

Job summary

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) UI framework in Glendale, WI.

You will build reusable UI components, integrate with REST APIs, and ensure performance and accessibility. The role emphasizes collaboration in Agile ceremonies, testing, and continuous improvement within a modern front-end stack.

Qualifications

• 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

Responsibilities

• 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

Skills

React

TypeScript

HTML/CSS

Responsive design

REST APIs

Frontend testing

Git & CI/CD

Agile development

Troubleshooting

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

CI/CD pipelines

Git

Job description

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) UI framework in Glendale, WI.

You will build reusable UI components, integrate with REST APIs, and ensure performance and accessibility. The role emphasizes collaboration in Agile ceremonies, testing, and continuous improvement within a modern front-end stack.