Intern, Test Development Engineering

KB Signaling; Grain Valley (MO); On-site; USD 43,000 - 44,000; Full time

Job summary

KB Signaling Inc. is seeking a motivated Test Hardware Engineer Intern to support the design and development of a custom switch matrix used in automated production test systems.

The role offers hands‑on experience with analog and digital circuit design, relay and switching technologies, PCB development, and test automation hardware. The intern will work with engineering teams to create a scalable architecture for routing precision signals during manufacturing and validation tests.

Qualifications

• 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.

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.

Skills

Circuit analysis

Analog/digital design

Instrumentation

Problem solving

Team collaboration

Education

Bachelor's or Master's in Electrical Engineering

Tools

Schematic capture

PCB layout

Job description

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.

KB Signaling Inc. is an Equal Employment Opportunity (EEO) employer. It is the policy of the Company to provide equal employment opportunities to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.

Test Hardware Engineer Intern – Production Test Systems (Switch Matrix Design)

Position Title: Test Hardware Engineer Intern

Department: Production Test Development

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.

Key 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.

Required Qualifications

• 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.

Preferred Qualifications

• Experience with PCB design and fabrication processes.


• Knowledge of relay switching systems, analog multiplexers, or automated test equipment (ATE).


• Familiarity with signal integrity concepts, low‑level measurements, and precision instrumentation.


• Experience with embedded systems, microcontrollers, I2C, SPI, UART, or GPIO interfaces.

Desired Technical Skills

• Analog circuit design


• Relay and switch matrix architecture


• PCB schematic capture and layout


• Signal integrity analysis


• Hardware debugging and validation


• Test fixture development


• Embedded hardware interfaces


• Technical documentation

What You Will Learn

• End‑to‑end hardware development from concept through validation.


• Production test system architecture and automated test methodologies.


• High‑density switching systems for precision electrical measurements.


• Real‑world tradeoffs between performance, cost, reliability, and manufacturability.

Example Internship Deliverable

By the end of the internship, the selected candidate will have designed, prototyped, and validated a custom switch matrix design capable of automatically routing measurement and stimulus signals between production test instruments and multiple device‑under‑test (DUT) interfaces.

Pay 31$-32$