JobsMercury Marine

Mercury Marine - Foundry Engineering Co-op

Mercury Marine · Fond du Lac, WI

Posted Aug 25, 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 time you had to write instructions or documentation that someone else had to follow exactly. How did you make sure it was clear?

ability to produce usable SOPs and work instructions, a core deliverable of this role

Describe a group project where the team disagreed on the approach. How did you work through it?

how they collaborate with cross-functional people who may be more experienced or senior

Tell me about a time you had to learn a new tool or process quickly with little instruction. How did you get up to speed?

self-motivation and ability to ramp up fast in a manufacturing environment with limited hand-holding

Tell me about a project where you had to optimize a layout or workflow, even something small like a workspace or a lab setup.

ability to think spatially and practically about plant layout and workflow, a stated project area

Technical

Tell me about a class project or lab where you had to use CAD to design something that actually got built or tested. What software did you use and what did you learn once it left the screen?

whether their CAD experience is real and hands-on versus purely theoretical coursework

Walk me through what you know about high pressure die casting or lost foam casting, even if it's just from a textbook or a plant tour.

baseline familiarity with the specific casting processes this foundry runs, since most co-ops won't have direct experience

Have you worked with 3D printing or additive manufacturing before, maybe for a prototype or fixture? What was the part for and what did you learn about its limits?

genuine additive manufacturing exposure versus just having heard the term

Have you taken any coursework in metallurgy, materials science, or manufacturing processes? Tell me about something from it that stuck with you.

how well their academic background maps onto casting and materials work

Have you used Lean or Six Sigma tools like 5S or root cause analysis in a class or job? Give me an example.

exposure to continuous improvement methods that will be applied daily on the floor

Situational

Say you're given a set of casting quality data and asked to find out why scrap rates went up last week. How would you approach it?

basic data analysis instincts and whether they can structure a problem without hand-holding

You're on the plant floor and you notice something that looks unsafe, but it's not part of the project you're working on. What do you do?

safety instincts and whether they'll speak up even outside their assigned lane

If a die cast tool started producing parts with a defect that wasn't there last week, what questions would you start asking to figure out what changed?

troubleshooting mindset for tooling issues even without deep prior tooling knowledge

This co-op runs full time for six months starting in January or May of 2027. What does your school situation look like around that, and have you coordinated with your program's co-op office before?

logistics fit and whether they've actually confirmed eligibility with their university

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 Marine– Fond du Lac - Mercury Marine: Foundry Engineering Co-op Location: Plant 17-Fond du Lac, WI Workplace Category: Onsite Travel Required: No Direct Reports: No Pay Range:  $17-$27 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: Position Overview: As part of the talented Foundry Engineering team, you will support Mercury Marine's world-class aluminum high pressure die cast and lost foam foundry operations located in Plant 17. This role provides hands-on exposure to advanced manufacturing processes and engineering projects that directly impact product quality, efficiency, and innovation. You will collaborate with experienced engineers and production teams while contributing to additive manufacturing initiatives, casting process improvements, tooling support, data analysis, plant layout optimization, and continuous improvement activities. This position offers a unique opportunity to apply classroom knowledge in a fast-paced manufacturing environment while developing practical engineering skills. At Brunswick, we have passion for our work and a distinct ability to deliver. Essential Functions: • Support additive manufacturing initiatives, including 3D printing of prototypes, fixtures, and engineering components. • Assist with prototype casting pours and foundry process development activities. • Create and modify 3D models, engineering drawings, and manufacturing documentation using CAD software. • Support casting simulation and engineering analysis to improve product quality and manufacturing efficiency. • Collect, analyze, and interpret casting quality and production data to identify trends and opportunities for improvement. • Assist with the design, maintenance, and modification of die cast, trim, and foam tooling. • Develop, update, and maintain Standard Operating Procedures (SOPs), work instructions, and process documentation. • Participate in continuous improvement and problem-solving activities focused on safety, quality, delivery, and cost. • Support plant layout and workflow optimization projects through 2D and 3D design concepts. • Collaborate with engineering, operations, quality, and maintenance teams on cross-functional projects and process improvement initiatives. 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 Bachelor's degree program in Mechanical Engineering, Manufacturing Engineering, Industrial Engineering, Materials Science Engineering, Metallurgical Engineering, or a related engineering discipline. • 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 or May through December of 2027 • Ability to participate in a formal co-op program through your university, if applicable. • Strong analytical and problem-solving skills. • Proficiency with Microsoft Office applications, including Excel, Word, and PowerPoint. • Dependable, self-motivated, and eager to learn in a manufacturing environment. • Ability to communicate effectively and collaborate with cross-functional teams. • Ability to occasionally lift up to 35 lbs . Preferred Qualifications: • Experience with CAD software such as SolidWorks, Creo, AutoCAD, or similar 3D modeling tools. • Coursework or exposure to manufacturing processes, metallurgy, materials science, casting, tooling design, or production systems. • Experience with data analysis, continuous improvement methodologies, Lean Manufacturing, or Six Sigma principles. • Familiarity with 3D printing technologies and additive manufacturing applications. • Previous internship, co-op, laboratory, or project experience in a manufacturing environment. 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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