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Firmware Engineer II

Generac Power Systems Inc
South Portland, ME Full Time
POSTED ON 4/18/2026
AVAILABLE BEFORE 5/18/2026
We are Generac, a leading energy technology company committed to powering a smarter world.

Over the 60 plus years of Generac's history, we've been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries.

The Firmware Engineer II is responsible for providing firmware for embedded controls systems used in new product development, new or enhancements to system features, and existing product firmware support where needed. This role will be specifically involved in helping the design and development of new controls or algorithms, and system testing both in the lab and on real products. Located out of our wonderful S. Portland ME office, you will work with a great team of engineers and other professionals who support the clean energy products.

Major Responsibilities:

  • Drive power conversion and energy storage firmware design.
  • Develop, enhance and debug new and existing real-time firmware in C. Deliver high-quality code in a real-time embedded environment.
  • Design and implement functionality and behaviors of embedded subsystems, including power electronics control.
  • Drive firmware development for performance, scalability, robustness, and tight integration with the hardware.
  • Design safety rated firmware to meet UL1998 or related standards.
  • Hands-on hardware bring up, build and execute component validation to deliver robust, functional code using a combination of simulation, HIL and lab stages
  • Debug to ensure high quality of product in manufacturing, test and field
  • Occasional Travel to other Generac facilities and customer site visits as necessary
  • Other duties as assigned

Minimum Requirements:
  • Bachelor of Science in Electrical Engineering, Computer Engineering, Computer Science, Mathematics, Physics or related degree
  • 2 years of experience with embedded programming using languages such as C and or C

Knowledge / Skills / Abilities

  • Fluency with switch mode power electronics including inverters, DC-DC converters, power management, power conversion and control
  • Excellent software fundamentals, including architectural design, algorithm development, data structures, code modularity, and debugging multi-threaded code.
  • Experience with test-driven development using unit testing, software in the loop, or hardware in the loop methodologies. Our developers participate significantly in firmware testing, so a validation mindset is required.
  • Familiarity with electrical test tools like scopes, meters, and power supplies.

Relocation assistance for qualified candidate

At this time we cannot offer employment to any candidates on OPT or H1B.

No 3rd parties or agencies at this time

Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 - 50 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel.

"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."

Salary.com Estimation for Firmware Engineer II in South Portland, ME
$100,920 to $123,469
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