Sustaining Electrical Engineer, Relays

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.

We are looking for a motivated and detail-oriented R&D Electrical Engineer to join our team. This role offers a unique opportunity to grow your career by contributing to both PCB library management (40%) and electrical design (60%) within a collaborative R&D environment. You’ll work alongside experienced engineers to support the development of innovative electronics systems from concept through production.

About your role:

PCB Library Management (40%)

• Maintain and update the Altium 365 PCB library, ensuring consistency and accuracy.

• Create component symbols, footprints, and 3D models.

Electrical Design (60%)

• Assist in the design and development of mixed-signal electronic systems.

• Capture schematics and support PCB layout activities.

• Participate in component selection and design reviews.

• Support prototype testing, troubleshooting, and design iteration.

• Contribute to design documentation including specifications and test plans.

• Support component lifecycle management, including tracking obsolescence and sourcing alternatives.

• Collaborate with procurement and manufacturing teams to ensure component compliance and availability.

About you:

• BS in Electrical Engineering, Computer Engineering, or related field.

• 2+ years of experience in electronics design (internships or co-op experience may count).

• Awareness of UL/cUL/CE standards and certification processes.

• Familiarity with Altium Designer and Altium 365.

• Understanding of mixed-signal design principles.

• Experience with PCB component creation or library management is a plus.

• Strong communication and teamwork skills.

Bonus Skills

• Exposure to embedded hardware or firmware development.

• Experience with circuit simulation tools (e.g., SPICE).

• Familiarity with high-power or line-voltage electronics.

• Scripting experience (Python preferred).

Littelfuse is an equal opportunity employer committed to empowering every associate to make a difference — everywhere, every day.

We offer a comprehensive benefits package, including:

• Medical, dental, and vision coverage

• 401(k) with company match and annual contribution

• Paid time off and 11 holidays

• $900 Lifestyle Spending Account

• Tuition reimbursement (up to $20,000)

• Lean Six Sigma certification and career development opportunities

• Life, disability, and voluntary insurance options

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