Jobs › Plexus

Test Engineer I (December Grads)

Plexus · Neenah, WI · $58,100–$87,100 a year · Full time

Posted Sep 10, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a fixture design problem you solved, like poor probe contact or wear.

What they are checking: Whether they understand the mechanical side of test and can fix real fixture issues.

How do you support test technicians so they can debug failures without calling you every time?

What they are checking: Whether they build good diagnostics and training so the floor can work independently.

What would you do

First pass yield at functional test drops suddenly. How do you figure out whether it is the product or the tester?

What they are checking: Whether they troubleshoot the test system and the product with equal suspicion, using data.

A customer's test spec is vague or missing limits. How do you handle it?

What they are checking: Whether they work with the customer to define clear requirements instead of guessing.

About the work

Walk me through a production test system you designed or owned. What did it test and how?

What they are checking: Whether they have built real manufacturing test solutions, not just run tests someone else designed.

How do you decide the right mix of ICT, flying probe, boundary scan and functional test for a new board?

What they are checking: Whether they can build a test strategy that balances fault coverage, cost and cycle time.

What test software and languages have you used, like TestStand, LabVIEW or Python?

What they are checking: Whether they can develop and maintain automated test code in common industry tools.

How do you run a gauge R&R or otherwise prove your test is repeatable?

What they are checking: Whether they validate the measurement system itself before trusting its results.

How do you validate a test for a medical or aerospace product, and what documents come out of it?

What they are checking: Whether they understand test method validation and records in regulated manufacturing.

How do you reduce test cycle time without losing coverage?

What they are checking: Whether they can improve throughput thoughtfully rather than just cutting tests.

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The full job description

As published by Plexus.

About us: At Plexus, our vision is to help create the products that build a better world. Driven by a passion for excellence, we partner with leading Aerospace/Defense, Healthcare/Life Sciences and Industrial companies to design, manufacture and service some of the world’s most transformative products, including advanced surgical systems, diagnostic instruments, healthcare imaging equipment, mission critical aerospace systems, and electric vehicle (EV) charging solutions. Visit Plexus.com to learn more about our unwavering commitment to our vision. When we invest in our people, we invest in building a better world. With a vision rooted in the wellbeing and inclusive engagement of our team members, our customers, their end users and our communities, people are the heart of what we do and who we are. It is our values that unite us and guide us in everything that we do, including how we operate, behave and interact to foster a workplace where every team member feels valued and empowered to contribute their best. Our values include: Growing our People, Building Belonging, Innovating Responsibly, Delivering Excellence and Creating Customer Success. As a team member, you will engage in impactful work through global collaboration and the use of emerging technologies, join an inclusive culture where every team member is valued and working toward a greater purpose, and be empowered to reach your full potential through various development programs designed to accelerate your growth. Plexus offers a comprehensive benefits package designed to support team members' wellbeing, including medical, dental, and vision insurance, paid time off, retirement savings, and opportunities for professional development. We also prioritize work-life balance and offer a variety of perks to enhance the team member experience. For more information, visit our US benefits website at usbenefits.plexus.com . Our commitment to pay range transparency fosters an equitable workplace, where everyone can feel valued. The annual compensation range for this position is stated below. The salary offered within this range will be based upon the geographic location, work experience, education, licensure requirements and/or skill level. Salary Range: $58,100.00 - $87,100.00 Purpose Statement: This role is responsible for continuously improving test performance and equipment, troubleshooting complex issues, supporting equipment installation and changes, and providing technical guidance. Test engineers also play a key role in implementing and validating testing equipment and identifying best practices globally. Key Job Accountabilities: • Develops Manufacturing solutions/ Provide services that are high-quality, cost-appropriate, and satisfy the customer's requirements. • Utilizes appropriate tools and equipment to perform necessary work including creation, analysis, and verification. • Demonstrates a clear, discipline-specific understanding of the full Plexus Manufacturing processes/ Product Requirements & Specifications as it applies to their role. • Successfully executes responsibilities in adherence to Plexus' Manufacturing Processes • Produces comprehensive project documentation based on the needs of the project and in accordance with the quality and change management procedures and guidelines, as it applies to their role. Education/Experience Qualifications: • Bachelor’s Degree with 1 or more years of related experience is preferred. An equivalent combination of education and/or experience will be considered. Other Qualifications: • Intermediate Computer Skills • Intermediate Decision Making, Problem Solving Skills • Intermediate Verbal and Written Communications Skills • Strong Analytical and statistical analysis Skills; Statistical Process Control Software Skills • Proactive and ability to work in a Cross-Discipline team environment • Understand Structured Design • Ability to develop good working relationships with team members and customers • Lab tool/ test/measurement equipment experience preferred This document does not represent a contract of employment and is not intended to capture every possible assignment the incumbent could be asked to perform. We are pleased to provide reasonable accommodations to individuals with disabilities or special requirements. If you need an application accommodation, please contact us by email at GHQ.TA@plexus.com . Please include your contact information and clearly describe how we can help you. This email is for accommodation requests only and cannot be used to inquire about the status of applications. We are an Equal Opportunity Employer (EOE) and do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. Some offers of employment are contingent upon successfully passing a drug screen and/or background check.

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