New Product Development Engineer

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.

Littelfuse is seeking a New Product Development Engineer to join our Industrial Circuit Protection (ICP) R&D team in San Sebastián, Spain. In this role, you will contribute to the development of new products and technologies, supporting projects from concept through validation and product launch. Working closely with cross-functional teams, you will apply mechanical design principles, CAD tools, laboratory testing, and product development processes to bring innovative solutions to market.

About the job:

• Support the design and development of new Industrial Circuit Protection products and sub-systems.
• Create and maintain 3D models, drawings, and technical documentation using Autodesk Inventor.
• Participate in product design activities from concept development through validation and launch.
• Collaborate with Quality, Manufacturing, Sourcing, and Engineering teams to ensure successful product development.
• Perform hands-on laboratory testing, prototype evaluation, and design verification activities.
• Support prototype builds, testing activities, and product qualification programs.
• Contribute to FMEA, DVP&R, and other product development and validation processes.
• Analyze test data, identify design improvements, and support problem-solving activities.
• Assist with project planning, execution, and tracking of development milestones.
• Support continuous improvement initiatives related to product and process development.
• Travel occasionally (approximately 10%) to support project and business needs.

About you:

• Bachelor's degree in Mechanical Engineering or a related engineering discipline.
• 3+ years of experience in product development, engineering design, or a related technical role.
• Experience working within structured product development processes.
• Knowledge of CAD design tools.
• Hands-on approach with the ability to perform testing, prototype evaluation, and technical troubleshooting.
• Understanding of product validation activities, FMEA, DVP&R, or similar engineering methodologies.
• Strong analytical and problem-solving skills.
• Experience working in cross-functional project teams.
• Background in the electrical, electronics, electromechanical, or industrial products industry is preferred.
• Exposure to process development or manufacturing environments is considered an advantage.
• Fluent in Spanish and English.

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 – We Care, We Succeed With Our Customers, We Own The Outcome – support us in our mission to improve the safety, reliability, and performance of our customers’ products that use electrical energy.

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

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.

About Us

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.