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Generator Systems Engineer

Rehlko · Sheboygan, WI · $83,300–$105,200 a year · Full time

Posted Sep 23, 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 a generator or power system you worked on at the system level. What was your role?

What they are checking: Whether they have real experience integrating engines, alternators and controls into one working product.

Tell me about a time you had to coordinate mechanical, electrical and controls teams to solve one problem.

What they are checking: Whether they can lead across disciplines, which a systems engineer must do daily.

Tell me about a design decision you made that you would change now.

What they are checking: Whether they reflect honestly on past work and keep learning from it.

What would you do

A generator passes testing in the lab but customers report it trips offline in hot weather. How do you investigate?

What they are checking: Whether they connect field conditions like cooling and derating to design margins and dig in with data.

How do you decide how much design margin to build in when cost is under pressure?

What they are checking: Whether they can defend reliability margins with data rather than adding cost or risk by instinct.

About the work

How does the engine, alternator, governor and voltage regulator interact when a large load is suddenly applied to a generator set?

What they are checking: Whether they understand transient response, which is central to how a generator performs for customers.

How would you size a generator for a site with large motor loads and nonlinear loads like UPS systems?

What they are checking: Whether they know how motor starting and harmonics affect alternator selection beyond simple kilowatt totals.

Walk me through how you would plan validation testing for a new generator set before launch.

What they are checking: Whether they can design tests that cover load acceptance, thermal, emissions and durability requirements.

How do emissions standards like EPA Tier 4 affect generator system design decisions?

What they are checking: Whether they understand how regulations drive aftertreatment, packaging and cost on engine-driven products.

What certifications or standards have you designed generator sets to, such as UL 2200 or NFPA 110?

What they are checking: Whether they know the rules that govern standby and emergency power equipment.

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The full job description

As published by Rehlko.

Why Work at Rehlko Our work is guided by our purpose: creating an energy-resilient world for a better future. This purpose embodies the legacy we bring, with more than 100 years as the global leader in energy resilience, delivering solutions critical to sustain and improve life. Our teams have the opportunity to provide a critical resource – energy – that ensures safety, security, and independence for people around the world. Our team members are focused on pushing boundaries, continuing to innovate in an ever-changing landscape, and keeping up with the pace required to create solutions for today’s world demands. Our product range includes engines, generators, power conversion, UPS systems, EV components and electrification solutions, microgrid controls and management, and clean energy solutions that serve a broad spectrum of OEM, residential, industrial, and commercial customers. At Rehlko, you have the freedom to identify, create, and deliver solutions – large and small – that help people and communities thrive in the moments that matter. At Rehlko, our team members are the essential energy that powers our organization’s success. We are committed to fostering a safe and sustainable work environment where safety is everyone’s responsibility. We empower every team member to actively participate in our Zero Is Possible safety culture by encouraging open communication, proactively reporting hazards, following protocols, and suggesting improvements. Join us in creating an energy resilient world for a better future! What We Offer At Rehlko, our Total Rewards programs are designed to accelerate growth, energize performance, and support a culture of inclusion at every stage of life and work. We offer total rewards that are easily understood, recognize results, enable career mobility, and reflect our commitment to valuing diverse needs in a fast-moving world. We provide: • Competitive compensation and benefits • Work-life flexibility • Recognition and rewards • Development and career opportunities • A safe and inclusive workplace Why You Will Love this Job As a Generator Systems Engineer , you will play a key role in the development, analysis, validation, and optimization of generator systems used in critical power generation applications. In this role, the Generator Systems Engineer will leverage power system modeling, simulation, and electrical engineering expertise to evaluate system performance, improve reliability, and support new product development. Working collaboratively with cross-functional teams, customers, and external partners, the Generator Systems Engineer , will provide technical leadership in generator and alternator applications, support troubleshooting and root cause investigations, and help drive innovative solutions that enhance product performance, quality, and value. • Work mode: Hybrid-3 days on site • Location: N7650 County Rd LS, Sheboygan, WI, 53083 Relocation assistance available SPECIFIC RESPONSIBILITIES: • Perform transient analysis of simulations of generator applications to optimize sizing. • Develop and implement Alternator diagnostics algorithms. • Provide model development and guidance for power system simulation in Simulink, SKM, and other power system toolsets. • Work in conjunction with internal and external stakeholders to validate first article production machines. • Provide expertise and support to the applications engineering group for customer and application-specific issues. • Perform root cause failure analysis of alternator test failures. • Develop, maintain and teach best practices within the department. • Support education of internal and external stakeholders on power systems fundamentals. • Assist in optimization of new and existing power systems for performance and cost. • Limited domestic and international travel (<10%). EDUCATION AND EXPERIENCE REQUIREMENTS Education: • Bachelor of Science degree in Electrical Engineering from an ABET accredited institution is Required. Preferred Experience: • 3+ years work experience in an Electrical Engineering field • Candidates with no Electrical Machines experience will be considered if they have an interest in learning the concepts. • Excellent quantitative and qualitative analytical skills • Strong communication skills • High level of motivation and ability to collaborate effectively in a team and independently to achieve desired results Preferred Skills: • Hands-on experience with electric machine testing. • Targeted coursework in electric machines. • Experience with reference frame (qd0) analyses, symmetrical component analyses, and/or islanded power systems is considered an advantage. • Experience with electromagnetic finite element tools (e.g., Ansys Maxwell or Altair Flux) The Salary range for this position is $83,300.00-$105,200.00.The specific Salary rate offered to a candidate may be influenced by a variety of factors including the candidate’s experience, their education, and the work location. About Us Rehlko proudly offers a rich history steeped in creativity and commitment to our associates and communities, along with competitive benefits and compensation. Our Purpose—Creating an energy resilient world for a better future—and Values: Curiosity, Trust, Pace, and Excellence, are important cultural components that shape the way we work and relate to one another. Learn more about Rehlko at http://www.rehlko.com/who-we-are . In addition to the investment in your development, Rehlko offers a benefits package including a competitive salary, health, vision, dental, 401(k) with Rehlko matching, and more!? Rehlko is an equal opportunity employer that prohibits discrimination and will make decisions regarding employment opportunities, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination, without regard to race, creed, color, ethnicity, religion, sex, pregnancy, childbirth, or related medical conditions, genetic information, age, national origin, citizenship, ancestry, caste, mental or physical disability, marital or familial status, sexual orientation, gender identity or expression, genetic information, political belief or affiliation, union membership status, military status, veteran status, or any other characteristic protected by national, state, local, or other applicable laws. Americans with Disabilities Act (ADA) It is the policy of Rehlko to comply with all applicable provisions of the Americans with Disabilities Act (ADA) and corresponding national, state, local, or other applicable laws. Rehlko will not discriminate against any qualified associate or applicant with respect to any terms, privileges, or conditions of employment because of a person's physical or mental disability. Rehlko will provide a reasonable accommodation to associates or applicants with disabilities, in accordance with applicable laws. If you have a disability and require an accommodation in the application process or during the course of employment, please contact EnergyJobs@rehlko.com. Rehlko is an equal opportunity/affirmative action employer. Our Values Curiosity – Seek, learn, share Trust – Go farther together Pace – Focus to go faster Excellence – Find the win every day

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