Intern, Test Development Engineering

About the role

KB Signaling delivers unparalleled end-to-end wayside and onboard conventional signaling platforms and solutions, supporting our Control, Command, and Signaling (CCS) global business unit. A trailblazer, we are driven to provide the best solutions for improved safety, performance, and lower overall operating cost for today’s transit and freight railway systems and operators in North America and beyond. Our team is fueled by innovation and grounded in solid values, like giving back to the communities where we do business and embracing sustainability to help protect our planet. KB Signaling is part of a global, high-tech company that will challenge you and help you grow. Discover your potential.

Position Summary: We are seeking a motivated Test Hardware Engineer Intern to support the design and development of a custom switch matrix used in automated production test systems. This role provides hands-on experience with analog and digital circuit design, relay and switching technologies, PCB development, and test automation hardware. The intern will work closely with various engineering teams to create a reliable, scalable switching architecture capable of routing precision measurement and stimulus signals during manufacturing and validation testing.

Responsibilities

• Design and develop a custom switch matrix subsystem for use in automated production test equipment.
• Evaluate and select switching technologies including electromechanical relays, reed relays, solid-state relays, multiplexers, and analog switches.
• Create schematics and PCB layouts.
• Develop signal routing architectures for voltage, current, resistance, and communication interface testing.
• Perform circuit simulations and analysis to verify signal integrity, switching performance, leakage current, contact resistance, and isolation specifications.
• Assist with prototype assembly, bring-up, troubleshooting, and validation testing.
• Design relay driver circuits, protection circuitry, and interface logic for microcontroller or FPGA-based control systems.
• Conduct bench testing using oscilloscopes, digital multimeters, source measure units (SMUs), LCR meters, and other laboratory equipment.
• Document hardware designs, test procedures, design reviews, and validation results.
• Collaborate with manufacturing and test engineering teams to ensure the switch matrix meets production throughput, reliability, and maintainability requirements.
• Support debugging and root-cause analysis of prototype and production hardware issues.

Requirements

• Currently pursuing a Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related field.
• Completed coursework in circuit analysis, electronics, and digital systems.
• Understanding of analog and digital circuit fundamentals.
• Familiarity with schematic capture and PCB design tools.
• Experience using common laboratory test equipment.
• Strong analytical and problem-solving skills.
• Ability to work independently while collaborating effectively within a multidisciplinary engineering team.

Qualifications

• Experience with PCB design and fabrication processes.
• Knowledge of relay switching systems, analog