Test Engineer

Location: Suzhou

Remote Type: On-site

Time Type: Full time

Job Description

Littelfuse (NASDAQ: LFUS) is a diversified industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy. Headquartered in Chicago, Illinois, USA, we serve customers across industrial, transportation, and electronics markets worldwide. With approximately 16,000 employees we design and manufacture innovative technologies that support electrification, energy efficiency, and advanced automation. Our global reach is matched by a culture that empowers innovation and long-term growth. Guided by our principles We Care, We Succeed With Our Customers, and We Own the Outcome, we work collaboratively, think boldly, and deliver solutions that move industries forward.

About the job:

Manufacturing Test System Support

• Troubleshoot manufacturing test equipment, fixtures, software, and product test failures to quickly isolate root cause and restore production flow.
• Maintain, calibrate, and improve existing PCBA functional test systems, including hardware upgrades, component replacement, and obsolescence management.
• Drive corrective actions and continuous improvement projects that improve tester reliability, robustness, throughput, and uptime.

Test Software, Automation & Data

• Maintain and update test software, scripts, automation tools, diagnostics, and data collection capabilities.
• Collaborate with engineering teams to implement software improvements and support new product introductions.
• Document software changes and maintain appropriate version control practices.

Fixture, Hardware & New Test Capability

• Support design, modification, validation, and maintenance of test fixtures, interfaces, and associated electrical and mechanical hardware.
• Assist with the development and deployment of new manufacturing test solutions and test capabilities.
• Evaluate test system hardware and fixture performance to improve reliability, serviceability, and manufacturability.

About you:

• Bachelor's degree in Electrical Engineering, Computer Engineering, Mechanical Engineering, Mechatronics Engineering, or a related technical field.
• 3+ years of experience supporting manufacturing test systems, automated test equipment, or electronics production environments.
• Experience troubleshooting electronic systems and printed circuit board assemblies (PCBAs).
• Understanding of electrical measurement and test equipment such as oscilloscopes, digital multimeters, power supplies, and communication analyzers.
• Experience working with automated test software, scripting, or programming languages such as Python, LabVIEW, C#, or similar.
• Ability to read and interpret electrical schematics, wiring diagrams, and technical documentation.
• Strong analytical and problem-solving skills.
• Fluent English communication skills, both written and verbal.
• Ability to effectively collaborate with global engineering teams across different time zones and cultures.

At Littelfuse, we support employee growth and development. Guided by our culture principles, our teams work together to deliver value for customers and make a positive impact in the communities where we operate. We are an equal opportunity employer committed to fostering an inclusive workplace where everyone has the opportunity to grow and contribute. We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities.