Principal Electrical Engineer
Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Sep 29, 2026. Littelfuse scores B on the Alion truth index.
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.
As a Principal Electrical Engineer, you will be responsible for the electrical design, development and qualification of new solid-state components and systems. The candidate must be self-motivated and comfortable navigating uncertainties and customer driven design requirements. The role requires an understanding of the protection legacy that Littelfuse has established and the ability to collaborate across the business to draw upon that strength. Join the team at Littelfuse that is developing new, self-contained smart components and systems that deliver protection and control functionality to electrical systems.
About the Job:
- Develop and qualify electrical designs for solid-state control and protection components and systems. Establish design details, including stress and tolerance analysis, schematic capture, circuit simulation, and PCB layout.
- Serve as a technical leader and mentor to the broader development team. Establish technical excellence by example and through teaching of less experienced team members.
- Evaluate technical feasibility and select suitable suppliers for components and processes.
- Lead testing of AC (single phase and three phase) and DC protection systems.
- Engage with contract manufacturers or in house manufacturing to implement design, prepare design documentation, and evaluate production processes to assure components meet performance, reliability and cost targets.
- Support occasional travel as required to evaluate suppliers and support production ramp up.
- Develop and execute protection system component and system qualification plans
- Provide regular project updates as part of the overall project planning and execution.
About you:
- MS in Electrical Engineering or BS in Electrical Engineering with equivalent experience.
- 15+ years of hands-on experience designing analog and digital circuits, including microcontrollers, microprocessors and mixed-signal design.
- Expert knowledge of current sensing technologies, tradeoffs and practical implementation considerations in support of protection and metering requirements.
- Proficiency in managing systems with embedded firmware or programmable logic, ensuring optimal performance and reliability.
- Experience with meeting best practices for component placement, including circuit card stack up design considerations.
- Knowledge of power electronics topologies, operation and design considerations.
- Knowledge of product compliance process, including testing and designing for EMC and product safety approvals.
- Demonstrate an entrepreneurial spirit, willingness to experiment and be able to manage ambiguity.
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.