Process Control Engineer Intern Jobs in Phoenix, AZ

PrePass® is North America's most trusted weigh station bypass and toll management platform. We’re transforming how the transportation industry operates—creating solutions that keep trucks moving safely, efficiently, and compliantly. This means making bold decisions and building systems that support not only fleets but the broader economy. It all starts with enabling commercial vehicles to keep rolling with seamless toll management, weigh station bypass, and safety solutions. It’s what we do best, and we do it to meet the demands of the road every day.

That’s why people join us: our solutions are implemented in real-time, on highways and interstates across the nation, helping fleets go farther, faster. This work challenges and rewards, presenting complex problems that need ambitious answers. We hire bold thinkers with a heart for impact, a passion for progress, and the optimism to shape the future of transportation.

As a Software Engineer Intern at PrePass, you will help build application prototypes, proofs of concept, and performance evaluations for new hardware and software frameworks while enhancing existing products. You will leverage your C# .NET programming skills and collaborate with cross-functional teams to design, implement, and test software solutions focused on hardware interfacing and API integration. This is a great opportunity for a recent graduate or early-career professional looking to expand their skill set in a fast-paced, collaborative environment.

• Write and maintain high-quality code across the full stack using C# .NET on the back end and React on the front end.
• Build and improve web applications for cloud-based environments.
• Support prototypes, proofs of concept, and enhancements to existing products.

• Conduct unit, component, and end-to-end testing to identify and resolve bugs.
• Support software quality and a stable user experience across browsers and devices.
• Troubleshoot and debug application issues as part of the development process.

• Work closely with developers, product stakeholders, and team members to understand feature requirements.
• Contribute ideas and develop effective solutions through an iterative development process.
• Participate in Agile/Scrum ceremonies, including sprint planning, daily stand-ups, and retrospectives.

• Produce clear, concise technical documentation to support code maintainability, onboarding, and future enhancements.

Requirements

• We don’t expect you to check every box—we’re looking for curiosity, a willingness to learn, and a strong foundation to build on.
• Currently pursuing a bachelor’s degree in Computer Science, Software Engineering, Web Development, or a related field, or equivalent experience.
• Coursework or project experience with C#, JavaScript, or TypeScript; hands-on experience through personal projects, coursework, or internships all count.
• Some familiarity with React or another modern front-end framework, such as Vue or Angular.
• Exposure to web development concepts such as REST APIs, HTTP, or responsive design.
• Familiarity with Agile/Scrum development practices.
• Strong problem-solving and analytical skills.
• Excellent communication and collaboration skills, with the ability to work effectively in a team environment.
• Proficiency with common development tools such as Git, VS Code or Visual Studio, and browser developer tools.

• Experience consuming or designing RESTful APIs.
• Familiarity with Test-Driven Development.
• Familiarity with state management libraries such as Redux or Zustand.
• Experience with cloud platforms such as Microsoft Azure.
• Familiarity with CI/CD pipelines or tools such as Azure DevOps.
• Exposure to containerization tools such as Docker.
• Experience in the transportation or logistics industry.

• Career Growth: Work on meaningful projects and advance your skills in a supportive, fast-paced environment.
• Collaborative Culture: Join a team of dedicated professionals who value knowledge sharing and continuous improvement.
• Innovative Work: Contribute to solutions that directly impact the transportation industry by improving safety and efficiency.

If you’re a motivated early-career software engineer looking to grow your career and make a meaningful impact, we’d love to hear from you.

Benefits

At PrePass, our mission drives us.

We invest in relationships. We challenge ourselves to innovate and improve. We win together. Simply put, we live our Core Values.

Ready to help move the transportation industry forward? Join us and let’s drive progress—together.