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 a Lead Solutions Systems Architect to drive the system architecture and application strategy for our semiconductor solutions within the rapidly growing Battery Energy Storage Systems (BESS) market.
In this strategic role, you will define how our technologies are integrated into utility-scale energy storage solutions, including emerging Solid State Transformer (SST) architectures. You'll collaborate with customers, Product Management, R&D, and Application Engineering to shape next-generation solutions that accelerate innovation and enable the future of energy.
What You'll Do- Define and evolve system-level architectures for Battery Energy Storage Systems (BESS), including:
- Power Conversion Systems (PCS)
- Inverter topologies
- Protection strategies
- Emerging Solid State Transformer (SST) designs
- Translate customer requirements, market trends, and competitive insights into scalable solution roadmaps.
- Partner with Product Management and R&D to define future semiconductor product requirements.
- Serve as the technical authority during customer engagements with OEMs and system designers.
- Develop reference architectures, technical collateral, and solution blueprints.
- Support Application Engineering and Field Application Engineers on complex customer challenges.
- Influence technology strategy, design wins, and long-term business growth.
- Represent Littelfuse through technical presentations, publications, and industry conferences.
- Bachelor's or Master's degree in Electrical Engineering, Power Electronics, or a related field.
- 8+ years of experience in:
- Power Electronics
- Battery Energy Storage Systems (BESS)
- Semiconductor applications
- Strong expertise in:
- System-level power conversion architectures
- Inverters, converters, and grid-connected systems
- Semiconductor technologies including Si, SiC, and GaN
- Experience collaborating across customers, Product Management, and R&D.
- Demonstrated success influencing technical direction with OEMs or strategic customers.
- Expertise with multi-level inverter topologies (NPC, ANPC, etc.).
- Experience with utility-scale BESS or Power Conversion Systems (PCS).
- Knowledge of Solid State Transformers (SST) or next-generation energy conversion technologies.
- Experience developing system architectures or application roadmaps.
- Proficiency with PLECS, MATLAB/Simulink, or similar modeling tools.
- Familiarity with standards such as UL 9540, UL 1741, IEC 62933, and grid interconnection requirements.
- Experience presenting at technical conferences or publishing industry papers.
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
Flexible and remote work options
$850 Lifestyle Spending Account
Tuition reimbursement (up to $20,000)
Lean Six Sigma certification and career development opportunities
Life, disability, and voluntary insurance options
Artificial Intelligence (AI) tools may be used in some portions of the candidate review process for this position; however, all final employment decisions will be made by a person.
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Artificial intelligence (AI) tools may be used in some portions of the candidate review process for this position, however, all final employment decisions will be made by a person.Salary Range:
$123,100 - $190,780The salary offered will vary depending on your location, job-related skills, knowledge, and experience.
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
- Bachelor's or Master's degree in Electrical Engineering, Power Electronics, or related field.
- 8+ years of experience in power electronics, BESS, and semiconductor applications.
- Expertise in system-level power conversion architectures, inverters, converters, and grid-connected systems.
- Knowledge of semiconductor technologies including Si, SiC, and GaN.
- Experience collaborating with customers, Product Management, and R&D.
- Demonstrated success influencing technical direction with OEMs or strategic customers.
- Expertise with multi-level inverter topologies (NPC, ANPC).
- Experience with utility-scale BESS or Power Conversion Systems (PCS).
- Knowledge of Solid State Transformers (SST) or next-generation energy conversion technologies.
- Experience developing system architectures or application roadmaps.
- Proficiency with PLECS, MATLAB/Simulink, or similar modeling tools.
- Familiarity with standards such as UL 9540, UL 1741, IEC 62933, and grid interconnection requirements.
- Experience presenting at technical conferences or publishing industry papers.
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
