R&D Engineering Intern

Littelfuse • Rapid City, SD

1d

About The Position

Littelfuse is one of America’s Best Mid-Sized Companies (Forbes) and has been named one of the Best Places to Work in Illinois (Best Companies Group) for 11 consecutive years. With its global headquarters in Chicago, Illinois, USA, Littelfuse is a leading, global manufacturer of electronic components serving more than 100,000 end customers across industrial, transportation, and electronics end markets. We have more than 17,000 employees with operations in 15 countries. From semiconductors to sensors… switches to fuses and more… we produce billions of electronic components that help our customers empower a sustainable, connected, and safer world. In 2021, Littelfuse had net sales of $2.1 billion. This profile is intended for students in their final year of a bachelor’s degree or master’s degree or graduates of Engineering or Information Technology. We are seeking a motivated R&D Engineering Intern to work on engineering projects to support the team’s initiatives and process/product improvements. Assist the team with tasks set out by the manager and continuously learn the technical aspects of the role. Participate in meetings and closely collaborate with team members and other teams in the organization while learning to work independently. About your role: • Contribute to the design of components for electronic safety systems: • Electrical Engineers: Design and layout printed circuit board assemblies (PCBAs). • Mechanical Engineers: Design enclosures and mechanical interfaces. • Computer Engineers / Computer Scientists: Develop embedded firmware and software tools. • Test, validate, and troubleshoot prototypes and systems. • Analyze test results and prepare technical documentation. • Participate in design reviews and engineering discussions. • Learn about the product development lifecycle, from concept through prototyping and validation. About you: Education Field: Engineering, Information Technology Experience/Skills: Students in their last year of bachelor’s degree or master’s degree, or graduates looking for requalification who would be eligible to take a full-time role or role in the RISE Engineering Development Program after the internship. Proactive and eager to learn Team player with the ability to learn to work independently Strong communication skills Knowledge of MS Office and ability to learn new technology quickly Demonstrated interest in hands-on design and development through coursework, personal projects, other internships, or extracurriculars. Strong communication, analytical, and problem-solving skills. Available to work 40 hours per week during summer 2026. Are you an Electrical, Mechanical, or Computer Engineering major with a passion for embedded systems, product design, and development? Join our engineering team for a hands-on summer internship where you'll contribute to real-world projects focused on intelligent protection relay technologies and electronic safety systems. This internship offers a unique opportunity to explore multiple aspects of engineering design working alongside a team of cross discipline experienced engineers in a collaborative environment. The salary offered will vary depending on your location, job-related skills, knowledge, and experience. 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.

Requirements

• Students in their last year of bachelor’s degree or master’s degree, or graduates looking for requalification who would be eligible to take a full-time role or role in the RISE Engineering Development Program after the internship.
• Proactive and eager to learn
• Team player with the ability to learn to work independently
• Strong communication skills
• Knowledge of MS Office and ability to learn new technology quickly
• Demonstrated interest in hands-on design and development through coursework, personal projects, other internships, or extracurriculars.
• Strong communication, analytical, and problem-solving skills.
• Available to work 40 hours per week during summer 2026.

Responsibilities

• Contribute to the design of components for electronic safety systems
• Electrical Engineers: Design and layout printed circuit board assemblies (PCBAs).
• Mechanical Engineers: Design enclosures and mechanical interfaces.
• Computer Engineers / Computer Scientists: Develop embedded firmware and software tools.
• Test, validate, and troubleshoot prototypes and systems.
• Analyze test results and prepare technical documentation.
• Participate in design reviews and engineering discussions.
• Learn about the product development lifecycle, from concept through prototyping and validation.

What This Job Offers

• Career Level: Intern