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.
The Senior Debug Engineer is responsible for identifying, analyzing, troubleshooting, and resolving complex product, manufacturing, hardware, software, and system issues. This role works closely with Engineering, Quality, Manufacturing, Test, and Operations teams to drive root cause analysis, implement corrective actions, and improve overall product reliability, quality, and performance.
The ideal candidate possesses strong analytical skills, a methodical problem-solving approach, and the ability to work across cross-functional teams to resolve critical technical issues efficiently.
About Your Job:
Debug and Failure Analysis
· Investigate and diagnose product failures, defects, and performance issues.
· Perform systematic root cause analysis using established problem-solving methodologies.
· Analyze test data, logs, system reports, and failure symptoms to identify root causes.
· Replicate reported issues in controlled environments for troubleshooting purposes.
· Escalate complex technical problems to design and development teams when necessary.
Technical Troubleshooting
· Troubleshoot hardware, software, firmware, electrical, mechanical, and system-level issues.
· Utilize diagnostic tools, oscilloscopes, analyzers, debuggers, and test equipment.
· Verify functionality and performance after corrective actions are implemented.
· Support production and laboratory environments during issue resolution activities.
Root Cause and Corrective Action
· Lead root cause investigations utilizing methodologies such as:
5 Whys
Fishbone (Ishikawa) Analysis
Fault Tree Analysis (FTA)
Failure Mode and Effects Analysis (FMEA)
DMAIC and Lean methodologies
· Recommend and implement corrective and preventive actions (CAPA).
· Track issue closure and validate effectiveness of implemented solutions.
Process Improvement
· Identify recurring failure trends and drive continuous improvement initiatives.
· Develop debug procedures, troubleshooting guides, and knowledge-base documentation.
· Recommend test enhancements to improve defect detection and prevention.
· Support reliability and quality improvement projects.
Cross-Functional Collaboration
· Work closely with:
Product Engineering
Design Engineering
Manufacturing Engineering
Quality Engineering
Test Engineering
Operations Teams
· Communicate technical findings through reports, presentations, and review meetings.
· Support customer issue investigations when required.
About You:
· 10+ years of experience in debugging, failure analysis, manufacturing engineering, quality engineering, test engineering, or related technical roles.
· Experience working in manufacturing, electronics, automotive, industrial, semiconductor, or technology environments preferred.
Technical Skills
· Strong understanding of troubleshooting methodologies.
· Experience with root cause analysis techniques.
· Ability to interpret:
Schematics
Engineering drawings
Specifications
Test procedures
· Familiarity with manufacturing and test processes.
· Knowledge of quality systems and continuous improvement methodologies.
· Experience using data analysis tools such as Excel, Power BI, Minitab, JMP, or similar.
Preferred Skills
· Knowledge of Lean Manufacturing and Six Sigma principles.
· Experience with automated test systems.
· Familiarity with statistical analysis and process control.
· Programming or scripting knowledge (Python, SQL, C#, or similar).
· Understanding of reliability engineering concepts.
Littelfuse is an equal opportunity employer committed to empowering every associate to make a difference — everywhere, every day.
#LI-KRL
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
- 10+ years experience in debugging, failure analysis, manufacturing engineering, quality engineering, test engineering, or related technical roles.
- Experience troubleshooting hardware, software, firmware, electrical, mechanical, and system-level issues and using diagnostic test equipment (oscilloscopes, analyzers, debuggers).
- Strong understanding of troubleshooting methodologies and experience with root cause analysis techniques (5 Whys, Fishbone, FTA, FMEA, DMAIC).
- Ability to interpret schematics, engineering drawings, specifications, and test procedures.
- Familiarity with manufacturing and test processes and knowledge of quality systems and continuous improvement methodologies.
- Experience using data analysis tools such as Excel, Power BI, Minitab, JMP, or similar.
- Experience working in manufacturing, electronics, automotive, industrial, semiconductor, or technology environments.
- Knowledge of Lean Manufacturing and Six Sigma principles.
- Experience with automated test systems.
- Familiarity with statistical analysis and process control.
- Programming or scripting knowledge (Python, SQL, C#, or similar).
- Understanding of reliability engineering concepts.
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
