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 general 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. The Littelfuse Engineering team is looking for a Test Engineer who will be responsible for developing validation test plans, executing product testing activities, and coordinating validation efforts with Littelfuse laboratories globally. In this role, you will collaborate closely with Product Engineers, Application Engineers, Design Engineers, and internal and external customers to ensure products meet customer, industry, and Littelfuse standards while supporting new product development and product change initiatives.

About the Job

Collaborate with Product, Application, and Design Engineering teams to identify testing requirements for new product development and product changes. Create validation test plans and coordinate testing activities with internal and external stakeholders. Manage testing activities in progress and communicate status updates and findings to engineering teams. Serve as a liaison between testing laboratories and engineering groups throughout the validation process. Analyze test results and prepare technical reports for internal and external customers. Support compliance with customer specifications, Littelfuse standards, and applicable international standards. Update internal specifications, procedures, and work instructions as required by testing and validation needs. Prioritize multiple projects and testing activities to meet business and customer requirements.



Support continuous improvement initiatives related to testing, validation, and product quality.

About You

Bachelor’s degree in Mechanical Engineering, Mechatronics Engineering, Electrical Engineering, Industrial Engineering, or a related field. Experience in product validation, testing, or automotive electrical component development is preferred. Knowledge of statistical tools, statistical techniques, reliability testing, and design of experiments. Understanding of automotive DC electrical test equipment and testing methodologies. Basic knowledge of solid models and engineering drawings. Familiarity with APQP procedures and Core Tools (FMEA, Control Plan, APQP, PPAP) is an asset. Strong problem-solving, communication, and teamwork skills. Basic knowledge of artificial intelligence tools is preferred. English proficiency (written, reading, and conversational) at 80% or higher.

Littelfuse strives to empower associate growth and development in a culture of ongoing collaboration and respect for diverse global perspectives and expertise. Our Core Values - Customer Focus, Integrity, Innovation, Teamwork, and Results-Driven - support our mission to improve the safety, reliability, efficiency, and performance of our customers' products and systems.

We are an equal opportunity employer that takes pride in giving every associate the means and courage to make a difference - everywhere, every day.

#LI-ALH 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.

Our humble roots date back to 1927, where, in the back of a garage on Chicago’s northside, our founder, Edward Sundt, developed a small, fast-acting, protective fuse for use in sensitive test meters. Sundt wanted to call his new company producing these small fuses, "Little Fuse," but wasn’t allowed to trademark two such common words. So, instead he went with the one-word, misspelled "Littelfuse." For more than 95 years, Littelfuse has pioneered innovative products that help empower a sustainable, connected, and safer world. With the ever-evolving electrification and electronification of customer applications, our product technologies are closely linked to sustainable applications such as electric vehicles and EV charging infrastructure, renewable energy and energy storage, factory automation, power management and more. Throughout our history, our people have been the foundation of our success - and that remains true today. Now more than ever, our bright and talented people are a strategic advantage for the company. From the production line to the engineering lab, the office or distribution center, Littelfuse people are an important part of a diverse, talented team of the best and brightest in the industry. While Littelfuse has experienced tremendous growth in recent years, we still maintain a small-company, entrepreneurial approach where your efforts will drive our culture, our business, and the overall success of the organization. No matter where you work or what you do, your contributions will make a difference at Littelfuse - everywhere, every day.

Littelfuse is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, gender identity, sexual orientation, disability, protected veteran status, and/or any other protected class under federal, state, or local law.

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