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Intern Engineering

Generac · Sussex, WI · Full time

Posted Oct 2, 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

The internship could place you in electrical systems, controls or embedded systems. Which fits you best, and why?

What they are checking: Whether they know their own strengths and can make a case for where they will add value.

Tell me about a project where you designed or built something with electrical or control parts. What did you learn?

What they are checking: Whether they have hands-on experience beyond coursework and can explain their own role in it.

Tell me about a time you had to learn a new tool or language fast to finish something.

What they are checking: Whether they can ramp up quickly, which a summer internship depends on.

Tell me about a team project where you disagreed with a teammate on the design.

What they are checking: Whether they can work through technical disagreement with respect and data.

What would you do

You are stuck on a problem in your project and your mentor is busy. What do you do?

What they are checking: Whether they try things on their own first and then ask good, specific questions instead of waiting or spinning.

The program is full-time and on-site in Wisconsin from May or June through August. How does that fit your plans?

What they are checking: Whether they can commit fully to the in-person program and dates.

About the work

How would you explain how a closed loop control system works to someone outside engineering?

What they are checking: Whether they understand feedback control well enough to explain it simply, a sign of real understanding.

What is the difference between writing firmware for a microcontroller and writing software for a laptop?

What they are checking: Whether they understand constraints like memory, timing and hardware access that shape embedded work.

Generators and energy products deal with high power. What safety habits would you bring to a lab or test cell?

What they are checking: Whether they respect electrical hazards, which matter on day one around power equipment.

How do you debug a circuit or a piece of code that works sometimes but not always?

What they are checking: Whether they have a method for intermittent problems, which are common in real products.

Practice this interview out loud.

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

Practice this out loud

The full job description

As published by Generac.

We believe power is a promise - a shared commitment to be there for others when it matters most. For more than 65 years, we've turned big ideas into solutions that help protect homes, strengthen businesses and build a more resilient, efficient, sustainable energy future. Ready to Power a Smarter World with us? Generac’s Internship Program is full-time (40 hours per week) from May/June through August 2027. The program will be on-site , with positions in the following locations: Waukesha, WI (headquarters); Pewaukee, WI; plant locations throughout Wisconsin. ​Generac’s Internship Program is designed to provide students with real-world experience in a supportive and innovative environment. Students contribute to impactful projects, gain exposure to industry best practices, and build lasting professional connections. This is a valuable opportunity to develop your professional and technical skills and grow alongside experienced mentors. Potential Roles You Will Be Considered For: -Product Development - Designs and develops new products, subsystems, and components from concept through production while balancing performance, cost, quality, and manufacturability. -Test & Validation - Plans and executes laboratory and field testing to verify product performance, durability, safety, and compliance with requirements. -Simulation Engineering - Uses analytical and virtual engineering tools such as FEA, CFD, and system modeling to predict product behavior and accelerate development. -Thermal & Fluid Systems- Develops cooling, airflow, fuel, combustion, and fluid management systems to optimize product efficiency, reliability, and performance. EDUCATION, SKILLS & EXPERIENCE REQUIRED: · Currently pursuing a bachelors or advanced degree in mechanical engineering or related field. · Understanding or working knowledge of Pro-E and/or AutoCAD experience. · Proficient oral and written communication and able to write clearly and succinctly to get a message across. · Ability to work FULL-TIME during the Summer – 40 Hour Week; Potential to continue working part time during school. PREFERRED EDUCATION · Completion of Sophomore year KEY DUTIES: · Designs, validates, and brings new products to market. · Provides new product development support in the Industrial, Commercial, Residential and/or Retail generator or Power Tool product area including; Creating and maintaining CAD models, drawings, and BOMs; Supporting product development plans (schedule, product cost, meeting design inputs); Interfacing with internal company personnel; Provide technical support for assigned projects. · Specifies precise new product functional requirements; designs, tests and integrates standard, less complex components to produce final designs; and evaluates the design's overall effectiveness, cost (including cost/benefit analysis), reliability (risk analysis), and safety. · Designs, develops, executes and evaluates fitness-for-use testing, product specifications and process validation plans for standard products and/or components; creates and reviews material part specifications and bills of materials. · Collaborates with internal manufacturing partners, contract manufacturers, designers and product specialists to optimize basic designs for manufacturability. · Utilizes CAD (Computer Aided Design) or CAE (Computer Aided Engineering) systems to model new designs and produce detailed engineering drawings. · Supports product development plans (schedule, product cost, meeting design inputs) · Travels to other Generac facilities as necessary · Other duties as assigned “We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, national origin, disability status, protected veteran status, or any other characteristic protected by law.”

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