JobsMercury Marine

Mercury Racing Systems Engineering Co-Op

Mercury Marine · Fond du Lac, WI

Posted Sep 14, 2026 · We last checked this listing on Sep 20, 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.

Behavioral

Tell me about a class project or personal project where you had to build or test something mechanical or electrical with your own hands.

whether they have real hands-on fabrication or test experience beyond just coursework theory

Tell me about a time you had to collect and analyze data to draw a conclusion, even if it was for a lab report.

comfort with the collect-data-establish-facts-draw-conclusions process the job description names directly

Describe a time you worked under general supervision, meaning nobody was checking in on you constantly. How did you keep yourself on track?

self-motivation and reliability since the role explicitly requires working under general supervision

Tell me about a time you had to explain a technical problem to someone who wasn't as familiar with the details as you were.

communication skills for working alongside experienced engineers on a small team

Technical

Walk me through how you'd measure the bore diameter of an engine cylinder using calipers or a gauge, and what could throw off that measurement.

basic familiarity with hand tools and measurement instruments and whether they understand sources of error

What do you know about how a powertrain or drivetrain moves power from the engine to the propeller or wheels?

baseline understanding of powertrain fundamentals since the posting calls this out as required

Have you used Python, C, C++, or MATLAB/Simulink for anything, even a class assignment? Tell me what you built.

real coding exposure versus just listing tools on a resume

What coursework have you taken in statics, dynamics, thermodynamics, or mechatronics, and which one do you feel strongest in?

depth of relevant academic foundation, not just that a box was checked

Have you used any CAD software? Tell me about something you modeled or a drawing you had to interpret.

practical CAD exposure that would help them read or contribute to prototype drawings

Situational

Say you're running a component validation test and the data looks completely different from what you expected. What do you do next?

whether they troubleshoot methodically instead of guessing or panicking

If you were assembling a prototype and the instructions didn't match the part in front of you, what would you do before proceeding?

judgment around safety and communication versus just pushing forward on their own

If a test on an engine component is behind schedule and you're asked to speed things up, but you also notice something that seems unsafe, what do you do?

whether they prioritize safety over pressure to move fast, especially around engine testing

You're asked to help instrument a test setup to capture temperature and pressure data during an engine run. What would you want to know before you start hooking things up?

practical thinking about test instrumentation setup and asking the right clarifying questions before acting

Practice this interview out loud.

Offer builds a real interview for this exact role at Mercury Marine from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

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The full job description

As published by Mercury Marine.

Are you ready for what’s next?   Come explore opportunities within Brunswick, a global marine leader committed to challenging conventions and innovating next-generation technologies that transform experiences on the water and beyond.  Brunswick believes “Next Never Rests™,” and we offer a variety of exciting careers and growth opportunities within united teams defining the future of marine recreation.  Mercury Racing- Fond Du Lac, WI- Mercury Racing Systems Engineering Co-Op Location:  Plant 36-Fond Du Lac, WI Workplace Category: Onsite Travel Required: No Direct Reports: No Pay Range:  $18.00-$27.50 Visa Sponsorship: Applicants must be currently authorized to work in the United States.  This position is not eligible for employment visa sponsorship now or in the future.   Relocation: Yes Innovation is the heart of Brunswick.  See how your contributions will help transform vision into reality: As part of the talented Mercury Racing Product Development team, you will participate in developing and validating racing prototypes and production components.  You will work alongside the engineering development team testing mechanical and electrical engine components. At Brunswick, we have passion for our work and a distinct ability to deliver.  Essential Functions: • Support system level component testing and validation of mechanical and electrical systems • Assist with hands-on component prototype and production builds • Assist with test instrumentation and post-test data analysis Diversity of thought and experiences is fundamental when imagining the unimaginable. Certain skillsets/experiences are necessary; however, others can be developed along the way. Required Qualifications:    • Current enrollment in a BS program with a major in Electrical Engineering, Mechanical Engineering or similar • Minimum second semester sophomore status with 48 completed credits • Availability to work full-time (40 or more hours per week) during the the months of January through August 2027 • Working knowledge of powertrain or drivetrain components • Ability to use basic hand tools, lab instruments, and measurement devices (calipers, gauges). • Ability to define problems, collect data, establish facts, and draw conclusions. • Strong mechanical aptitude (engine knowledge is a plus) and creative ability; self-motivated; ability to work under general supervision. Preferred Qualifications:   • Working knowledge of engines/transmissions • Able to work full time during the spring/summer Jan-August 2027 • Programming language (python, C or C++), matlab/Simulink • Knowledge of CAD software • Coursework knowledge in statics, dynamics, thermodynamics or mechatronics Working Conditions: • Learning Opportunities: Our Student Program is designed to provide hands-on experience in a professional setting. You will work alongside experienced professionals and get a chance to apply your academic knowledge to real-world tasks.  • Project Work: The work environment is supportive, collaborative, and conducive to learning. Student co-ops or interns typically work on specific projects or tasks that contribute to the organization’s goals. This may range from supporting larger projects to handling smaller, individual assignments.   • Hours: Co-ops and Interns are expected to work a full 40-hour work week • Feedback and Performance Reviews: As a co-op or intern, you will receive feedback and performance reviews throughout your assignment. We value the importance for interns to understand their progress and areas for improvement.  The pay range for this position is $18.00-27.50 per hour.  The actual hourly rate offered will vary depending on multiple factors including year in school/credits earned, degree, job-related knowledge/skills, relevant experience, business needs, and geographic location.  Compensation decisions are dependent upon the specifics of the candidate’s qualifications and the business context. Why Brunswick:   Whatever tomorrow brings, we’ll be at the leading edge.  As the clear leader in the marine industry, we’re committed to our values and supporting our exceptional people. We offer and encourage growth opportunities within and across our many brands. In addition, we’re proud of being recognized for making a splash with numerous awards !  About Mercury Marine Headquartered in Fond du Lac, Wisconsin, Mercury Marine® is the world’s leading manufacturer of recreational marine propulsion engines. A division of Brunswick Corporation (NYSE: BC), Mercury provides engines, boats, services and parts for recreational, commercial and government marine applications. Mercury empowers boaters with products that are easy to use, extremely reliable and backed by the most dedicated customer support in the world. The company’s industry-leading brand portfolio includes Mercury outboard engines, Mercury MerCruiser® sterndrive and inboard packages, Mercury propellers, Mercury inflatable boats, Mercury SmartCraft® electronics, Land 'N' Sea marine parts distribution and Mercury and Quicksilver® parts and oils. More information is available at MercuryMarine.com. Next is Now!   We value growth and development, recognizing that people come with a wealth of experience and talent beyond just the technical requirements of a job. If your experience is close to what you see listed here, please still consider applying. Brunswick is an Equal Opportunity Employer and considers all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status or any other characteristic protected by federal, state, or local law.  Diversity of experience and skills combined with passion is key to innovation and inspiration and we encourage individuals from all backgrounds to apply.  If you require accommodation during the application or interview process, please contact hrsharedservices@brunswick.com  for support.  Brunswick and Workday Privacy Policies Brunswick does not accept applications, inquiries or solicitations from unapproved staffing agencies or vendors. For help, please contact our support team at: hrsharedservices@brunswick.com or 866-278-6942. All job offers will come to you via the candidate portal you create when applying through a posted position through https:///www.brunswick.com/careers .  If you are ever unsure about what is being required of you during the application process or its source, please contact HR Shared Services at 866-278-6942 or HRSharedServices@brunswick.com . #Brunswick Corporation - Mercury Marine For more information about EEO laws, - click here Brunswick Corporation participates in E-Verify as part of our commitment to a lawful and transparent hiring process. For additional information click here: https://www.brunswick.com/e-verify .

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