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Mechanical Engineer Intern

Oshkosh Corporation · Oshkosh, WI · $18.00–$37.00 an hour · Full time

Posted Sep 9, 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 an engineering project from school or a past job where you designed something. What would you change now?

What they are checking: Whether they can explain their design thinking and reflect honestly on what they learned.

Tell me about a time you had to learn something technical on your own to finish a project.

What they are checking: Whether they are self-driven learners who will ramp up quickly during an internship.

Tell me about a team project where things did not go well. What was your role?

What they are checking: Whether they own their part in teamwork and handle problems constructively.

What would you do

You are asked to help test a prototype and the results do not match what was expected. What do you do?

What they are checking: Whether they check their test setup and data carefully and raise questions instead of hiding surprises.

Oshkosh vehicles keep soldiers and firefighters safe. How does that change how you approach engineering work?

What they are checking: Whether they understand the seriousness of reliability when lives depend on the equipment.

How would you work with a technician or manufacturing team who has much more hands-on experience than you?

What they are checking: Whether they are humble and learn from people on the floor rather than relying only on theory.

What area of engineering interests you most: design, testing, reliability or prototyping? Why?

What they are checking: Whether they have thought about their interests, which helps match them to a project.

About the work

What CAD tools have you used, and how comfortable are you with creating drawings that someone could build from?

What they are checking: Whether they can contribute to real vehicle component design with usable models and drawings.

How would you decide whether a bracket on a vehicle is strong enough?

What they are checking: Whether they can apply classroom basics like loads, stress and safety factors to a real part.

How would you explain a technical finding to someone who is not an engineer?

What they are checking: Whether they can communicate clearly with cross-functional teams.

Practice this interview out loud.

Offer builds a real interview for this exact role at Oshkosh Corporation 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 Oshkosh Corporation.

About Oshkosh Defense, an Oshkosh company Oshkosh Defense stands behind those who dedicate their lives to protecting others. As an industry-leading tactical vehicle manufacturer, every day we strive to meet or exceed our customers' ever-changing needs with next generation defense technologies and advanced systems. We operate with unparalleled commitment to those who depend on our products and services worldwide to perform their missions. Assist a variety of engineers (design, production, manufacturing, industrial, test, etc.) with multiple tasks involving the mechanical engineering functions. YOUR IMPACT • Prepare vehicle component layouts using CAD software i.e., CATIA (Corporate, Defense, & Pierce), or PRO/E (JLG). • Select parts or components for quality conscious design, i.e., weight, cost, reliability, and ease of manufacturing. • Follow project on the assembly floor for prototype, pilot, or production build and provide technical assistance. • Generate engineering calculations of weight distribution, stress analysis, performance estimations, etc. • Consult with suppliers, customers, and internal departments to find solutions to problems. • Perform or assist in the testing of complete vehicles or vehicle components. • Create and manage ECN’s (Engineering Change Notices) using the PLM (Product Lifecycle Management) system. • Design, model and test new mechanical systems that integrate with a vehicle. • Update bill of materials in the PDM (Product Data Management) system to reflect product changes. • All other duties or projects as assigned. *Job duties will vary depending on business unit and location of internship. If working in the Test & Development area, some responsibilities may include: • Establish requirements for testing of heavy-duty vehicles and associated equipment. • Create test plans, recommend resources of equipment necessary to accomplish the test, and formulate test project estimates. • Conceive necessary fixtures and test apparatus and supervise their construction and development. • Coordinate, supervise, and monitor testing, record test data. • Recommend corrective actions needed to achieve reliability and performance, and maintain schedule and cost targets. • Communicate status and results of tests to internal departments, suppliers, and customers. MINIMUM QUALIFICATIONS • Student working towards a Bachelor's degree in Mechanical Engineering or other related engineering field throughout entire duration of the internship. • Graduation date of December 2027 or later. • Willing to travel or relocate to Oshkosh, WI for the Summer of 2027 (relocation assistance provided for those with a permanent address of greater than 50 miles from Oshkosh, WI). STANDOUT QUALIFICATIONS • Good oral and written communication skills. • Experience in extracurricular activities outside academic requirements. • Previous internship experience or work-related experience. • Experience using CATIA, Creo, Pro-E or a similar CAD system is a plus. • Previous experience or heightened interest in mechanical design. Pay Range: $18.00 - $37.00 The above pay range reflects the minimum and maximum target pay for the position across all U.S. locations. Within this range, individual pay is determined by various factors, including the scope and responsibilities of the role, the candidate's experience, education and skills, as well as the equity of pay among team members in similar positions. Beyond offering a competitive total rewards package, we prioritize a people-first culture and offer various opportunities to support team member growth and success. Oshkosh is committed to working with and offering reasonable accommodation to job applicants with disabilities. If you need assistance or an accommodation due to disability for any part of the employment process, please contact us at corporatetalentacquisition@oshkoshcorp.com. Oshkosh Corporation is a merit-based Equal Opportunity Employer. Job opportunities are open for application to all qualified individuals and selection decisions are made without regard to race, color, religion, sex, national origin, age, disability, veteran status, or other protected characteristic. To the extent that information is provided or collected regarding categories as provided by law it will in no way affect the decision regarding an employment application. Oshkosh Corporation will not discharge or in any manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with Oshkosh Corporation's legal duty to furnish information. Certain positions with Oshkosh Corporation require access to controlled goods and technologies subject to the International Traffic in Arms Regulations or the Export Administration Regulations. Applicants for these positions may need to be "U.S. Persons," as defined in these regulations. Generally, a "U.S. Person" is a U.S. citizen, lawful permanent resident, or an individual who has been admitted as a refugee or granted asylum.

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