Senior Packaging Engineer - System-In-Package

Littelfuse • MA

80d • $117,600 - $182,220

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. Join the Littelfuse team driving innovation in solid-state protection and control systems. As a Senior Packaging Engineer, you will lead the design, development, and qualification of advanced System-in-Package (SiP) solutions that integrate power semiconductor devices, passive components, and interconnects. This role is ideal for a self-motivated engineer who thrives in ambiguity and is passionate about delivering high-performance, reliable solutions.

Requirements

• Bachelor's degree in Engineering or Materials Science.
• Master’s degree in Engineering a plus.
• Minimum 10 years of relevant experience in system-in-package (SiP) design.
• Deep knowledge of engineering, preferably across more than one discipline.
• Experience with global manufacturing companies preferred.
• Advanced knowledge in MS Office.
• Strong communication, collaboration, and analytical skills.
• High attention to detail.

Responsibilities

• Architect and develop SiP solutions for solid-state control and protection systems.
• Perform stress and tolerance analysis; create detailed 3D models and engineering drawings.
• Evaluate and select materials including substrates, die attach, underfills, encapsulants, and thermal interface materials.
• Partner with cross-functional teams to assess technical feasibility and identify suitable suppliers.
• Work with contract manufacturers and internal teams to transition designs into production.
• Prepare and maintain comprehensive design documentation.
• Define and interpret multi-physics simulations (thermal, electrical, mechanical) to predict lifetime performance.
• Ensure designs meet performance, reliability, and cost targets through rigorous evaluation.
• Provide regular updates on project status and milestones.
• Support occasional travel to evaluate suppliers and assist with production ramp-up.

Benefits

• Competitive salary based on location, job-related skills, knowledge, and experience.
• Opportunities for professional development and growth.

What This Job Offers

• Career Level: Senior
• Education Level: Bachelor's degree
• Number of Employees: 5,001-10,000 employees