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Firmware Engineer II

Generac
South Portland, ME Full Time
POSTED ON 5/31/2026
AVAILABLE BEFORE 7/7/2026
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

Salary.com Estimation for Firmware Engineer II in South Portland, ME
$103,159 to $126,182
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