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 an experienced Senior Electrical Engineer to join our Solid-State Protection Systems team in San Sebastien, Spain. In this role, you will contribute to the development of next-generation protection and control products for AC and DC electrical systems. You will work across multiple disciplines to design, validate, and launch innovative solutions that combine power electronics, embedded control, and system-level protection technologies.
About the job:
Design and develop electrical circuits and subsystems for solid-state protection and control products.
Perform schematic capture, simulation, component selection, stress analysis, and PCB design reviews.
Collaborate with firmware engineers to define and implement system requirements.
Support laboratory evaluation, troubleshooting, and validation testing of AC and DC protection systems.
Participate in product qualification, reliability testing, and compliance activities.
Work closely with manufacturing and supplier partners to ensure product performance, quality, and cost objectives are achieved.
Contribute to technical discussions, design reviews, and project planning activities.
Support occasional travel to manufacturing sites, suppliers, or customer locations.
About you:
BS or MS degree in Electrical Engineering.
10+ years of experience in electrical product development.
Strong background in analog, digital, and mixed-signal circuit design.
Experience working with microcontrollers, embedded systems, or programmable logic devices.
Understanding of power electronics, protection systems, and current sensing technologies.
Experience with schematic design, circuit simulation, and PCB layout.
Familiarity with EMC, safety, and product compliance requirements.
Strong problem-solving, communication, and collaboration skills.
Ability to work independently and drive technical decisions within project teams.
Nice to Have
Experience with industrial, energy, automotive, or power distribution applications.
Exposure to system-level architecture and requirements management.
Knowledge of smart protection, control, or monitoring solutions.
#LI-RK
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.
Skills Required
- BS or MS degree in Electrical Engineering
- 10+ years of experience in electrical product development
- Strong background in analog, digital, and mixed-signal circuit design
- Experience working with microcontrollers, embedded systems, or programmable logic devices
- Understanding of power electronics, protection systems, and current sensing technologies
- Experience with schematic design, circuit simulation, and PCB layout
- Familiarity with EMC, safety, and product compliance requirements
- Strong problem-solving, communication, and collaboration skills
- Ability to work independently and drive technical decisions within project teams
- Experience with industrial, energy, automotive, or power distribution applications
- Exposure to system-level architecture and requirements management
- Knowledge of smart protection, control, or monitoring solutions
Littelfuse Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Littelfuse and has not been reviewed or approved by Littelfuse.
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Retirement Support — A 401(k) plan includes a company match with an additional annual contribution, with plan details also referenced in corporate filings. This structure indicates dependable retirement support across U.S. roles.
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Wellbeing & Lifestyle Benefits — A Lifestyle Spending Account and tuition reimbursement, plus wellness resources and an Employee Assistance Program, expand the package beyond core insurance. Development programs such as Lean Six Sigma certifications reinforce a holistic rewards mix.
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Healthcare Strength — Core medical, dental, and vision coverage are standard and described as solid and workable. Coverage breadth is supported globally with EAP access.
Littelfuse Insights
What We Do
Littelfuse is an industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 15 countries, and with 17,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927. View our broad and deep product portfolio: https://www.littelfuse.com/ Littelfuse has had a long-standing commitment to ensuring a diversified workforce through equal employment opportunities. Maintaining a diversified workforce is critical to the success of our organization. Each associate receives equal employment opportunity regardless of race, color, religion, creed, sex (with or without sexual conduct), marital status, national origin, citizenship, ancestry, age, physical or mental disability, medical condition, order of protection status, military status, sexual orientation, gender expression or identity, genetic information, unfavorable discharge from military service, and any other protected class under federal, state or local law
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