Littelfuse logo

High Voltage Test Engineer

Littelfuse

On-site
Mount Prospect, IL
Full-time
Senior
5+ yrs
$89k–$137kPosted 3w ago

Real job — pulled straight from Littelfuse’s careers page · Verified July 20, 2026 · No reposts.

Job description

Littelfuse is hiring a High Voltage Test Engineer — a full-time, based in Mount Prospect, IL role ($89k–$137k). Apply directly on Littelfuse's careers page below.

Sr. High Voltage Test Engineer

Location: Mount Prospect

Time Type: Full time

Job Description

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.

Are you passionate about electric circuits and power systems and want to be a
part of the future of transportation? We are seeking a Senior High Voltage
Electrical Test Engineer to join our state-of-the-art high voltage lab!

As a Senior High Voltage Test Engineer, you will be responsible for testing and

evaluating the performance of our cutting-edge circuit protection devices for a

variety of applications. As a member of our team, you will have the opportunity

to work on exciting projects and collaborate closely with a team of talented

engineers to develop the latest advancements in circuit protection device

technologies across both automotive and emerging industries.


Responsibilities:

  • Develop test plans, procedures, and protocols for cutting-edge new and existing circuit protection devices for a variety of applications.

  • Execute high-voltage electrical and short circuit tests to evaluate performance, safety and durability of fuses and other circuit protection products.

  • Analyze and interpret test data and waveforms and create comprehensive test reports.

  • Participate in design reviews and provide technical feedback to product development teams.

  • Collaborate with cross-functional teams to develop and improve testing methods.

  • Perform preventative maintenance on the test equipment, maintain safety procedures, update risk assessments and operating procedures for the high voltage labs.

  • Lead the design/implementation of any improvements in the high voltage labs along with being the technical expert for ongoing initiatives.

Qualifications:

  • Bachelor's or Master's degree in Electrical Engineering or related field (5+ years of experience)

  • Deep knowledge of electrical circuit design and data acquisition with

  • specialization in power electronics and/or programming.

  • Ability to test, diagnose and repair various electrical setups and circuits.

  • Hands-on experience in operation of oscilloscopes, multimeters, etc.

  • Hands-on experience in operation of oscilloscopes, multimeters, etc.

  • Ability to identify and implement efficient paths of action to complete assigned tasks.

  • Ability to operate well independently or as a team member in a fast-paced environment.

  • Advanced knowledge in MS office.

  • Strong analytical and problem-solving skills.

  • Excellent communication and presentation skills.

  • High attention to detail.

Preferred Qualifications:

• Experience with global manufacturing companies

• Experience with Labview (or other automation software)

• Knowledge of PLCs and related software

#LIOB1

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:

$88,500 - $137,100

The 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.

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Frequently asked questions

What is the salary for High Voltage Test Engineer at Littelfuse?

The estimated salary range for High Voltage Test Engineer at Littelfuse is $89,000 - $137,000 USD per year.

What skills are required for High Voltage Test Engineer at Littelfuse?

The required skills for High Voltage Test Engineer at Littelfuse include: Electrical Engineering, Microsoft 365, LabVIEW.

What is the seniority level for High Voltage Test Engineer at Littelfuse?

High Voltage Test Engineer at Littelfuse is a Senior level position.

How do I apply for High Voltage Test Engineer at Littelfuse?

You can view the full description and apply for High Voltage Test Engineer at Littelfuse on EchoJobs: https://echojobs.io/job/littelfuse-sr-high-voltage-test-engineer-9o0xw.