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Industrial Engineer I (December Grads)

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

Posted Sep 11, 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

This role is for December grads. Tell me about the engineering project from school you'd want us to know about.

What they are checking: Whether they can explain their own contribution clearly and show how they think through a real problem.

Tell me about a time you suggested a change and people didn't want to accept it.

What they are checking: Whether they can win support from operators and supervisors by listening and showing evidence.

What do you hope to learn in your first year as an engineer?

What they are checking: Whether they have realistic goals and a mindset to grow in a hands-on manufacturing environment.

What would you do

Production wants to add a second shift instead of improving the current line. How would you help decide?

What they are checking: Whether they analyze capacity, cost and constraints with data before recommending a direction.

An operator says your new standard time is unfair. What would you do?

What they are checking: Whether they re-check the study, involve the operator and stay open rather than defending the number by default.

About the work

How would you do a time study on an assembly station, and what would you do with the results?

What they are checking: Whether they know how to measure work properly and use it to balance lines or set standards.

What is line balancing, and how would you tell if a line is out of balance?

What they are checking: Whether they can spot bottlenecks and idle time and understand how to spread work evenly.

Explain a lean tool you've used, like 5S, value stream mapping or kanban, and what it changed.

What they are checking: Whether they have applied lean ideas in practice rather than only knowing the definitions.

How would you lay out a new work cell for a product with several assembly and test steps?

What they are checking: Whether they think about flow, travel, ergonomics and material delivery when designing a layout.

Plexus builds many products in lower volumes. How does high-mix production change the industrial engineer's job?

What they are checking: Whether they understand changeovers, flexibility and standard work matter more than raw speed in high-mix settings.

How comfortable are you with tools like Excel, AutoCAD or simulation software?

What they are checking: Whether they can contribute to analysis and layouts quickly without a long ramp-up.

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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: Leverage engineering expertise and analytical skills to optimize manufacturing processes at Plexus, fostering continuous improvement and cost reduction. Through collaboration with teams across the organization, strive to enhance productivity, quality, and safety, ultimately contributing to Plexus's commitment to delivering customer satisfaction and building a better world. 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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