Staff Embedded Firmware Engineer

Computers/Software Austin, Texas


Our mission at Enphase Energy is to advance a sustainable future for all.

Today, our intelligent microinverters, which turn sunlight into an affordable, safe, reliable, and scalable source of energy, work with virtually every solar panel made, and when paired with our award-winning smart battery technology, we engineer one of the industry's best-performing clean energy systems. To date, we have installed more than 42 million microinverters on more than 1.9 million homes across 130 countries.

Like our customers, our innovative teams are also worldwide, making Enphase Energy a truly global company. We are one of the fastest growing and most dynamic energy companies in the world. Nimble and acutely focused on developing ground-breaking solar energy management technology, each of our teams have a shared goal of creating a carbon-free future.

At Enphase we are committed to diversity and inclusion. Developing cutting edge technology requires a workforce as diverse as the populations we wish to serve. We are a values-driven company that puts people and their power at the center of our shared energy future.

As a Staff Embedded Firmware Engineer, you will join a team focused on developing the software that powers our market leading energy products. You will work to improve the current functions and develop new approaches that will continue our advancing technology. 

Responsibilities include:

  • Designing and implementing embedded software for real-time operation and control.
  • Simulating new algorithms for autonomous microgrid power flow management.
  • Developing unit and system test software.
  • Validating algorithms using system simulation tools.
  • Working with hardware engineers to test and troubleshoot prototype designs.
  • Firmware testing.
  • Coach/train other technical employees

Education and Experience

  • BS/MS/PhD Electrical Engineering or Computer Engineering or Computer Science
  • BS and 8 + years / MS and 6 + years / PhD and 3 + Years’ experience in a similar (non-academic) role as an embedded software or firmware engineer

Skills, Knowledge and Special Attributes

  • Expertise in C++, C, and Assembly for real-time applications.
  • Expertise in both bare metal and small real-time operating systems
  • Able to understand and implement digital signal processing (DSP) concepts in a microcontroller environment.
  • Familiarity with ARM Cortex-M4/7 architectures.
  • Familiarity with evaluating CPU versus hardware processing requirements and trade-offs for cost-effective designs.
  • Ability to troubleshoot firmware related issues within complex systems.
  • Ability to test code and hardware both with and without external test equipment such as oscilloscopes, power meters, etc.
  • Familiarity with software development processes. E.g. Agile,Kanban, V model, etc.
  • Familiarity with development tools such as GCC, GDB, Eclipse, GNU Make, etc.
  • Familiarity with requirement management tools such as Jama or Doors.
  • Familiarity with software code management tools such as GIT, Mercurial, etc.
  • Ability to carry a design task from concept to implementation.
  • Ability to document engineering requirements, document solutions, and test new firmware designs.

Desired Skills

  • STM32 Cortex-M family development experience
  • FreeRTOS and/or Zephyr development experience
  • Desktop and embedded Linux experience
  • Docker experience.
  • Familiarity with of relevant worldwide standards such as IEEE 1547, 1741SA, CA Rule 21, HECO SRD 1.1, AS/NZS 4777.2:2015, SAND2013-9875, G83/2 regulations of UK and Sandia standard
  • Knowledge in worldwide electrical advanced grid functions and faults conditions
  • Familiarity with AC grid simulators and solar panel simulators


  • Austin– TX.