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About the Role

This role is within the CTO team on the Solid-State Transformer (SST) platform team, focusing on designing and delivering embedded firmware for Enphase's next-generation grid-scale energy conversion systems. The position is available at Staff, Senior Staff, and Principal levels, with higher levels involving increased architectural ownership and technical leadership.

Responsibilities

Design and ship firmware for real-time embedded systems in C/C++.
Develop board- and system-level firmware across multi-processor/core platforms (bare-metal, Zephyr RTOS).
Integrate real-time control loops with application and control processors.
Co-define HW/SW boundaries and drive systems bring-up with hardware and power electronics teams.
Drive end-to-end validation, including unit tests, HIL, and prototype testing.
Collaborate cross-functionally through DVT, factory test, and field quality.
Own platform architecture, lead reviews, mentor engineers, and drive hiring (at senior levels).

Requirements

BS and 8+ years / MS and 6+ years / PhD and 3+ years design experience for a Staff Engineer.
BS and 12+ years / MS and 8+ years / PhD and 5+ years design experience for a Sr. Staff Engineer.
Expert-level C and Modern C++ for real-time embedded applications.
Bare-metal and Zephyr RTOS firmware development.
Experience in functional safety firmware development.
ARM Cortex-M/R microcontroller architectures and peripherals (ADC, PWM, UART, I2C, SPI, CAN).
Comfortability working from low-level driver development through application development.
Hardware bring-up, schematic reading, reading datasheets and driver development.
Closed-loop control algorithm implementation on embedded targets.
System testing and debug with oscilloscopes, protocol analyzers, and HIL setups.
Python scripting for test automation and tooling.
Track record of shipping products from concept through manufacturing and field support.

Skills

C/C++
Bare-metal firmware development
Zephyr RTOS
ARM Cortex-M/R microcontroller architectures
Peripherals (ADC, PWM, UART, I2C, SPI, CAN)
Hardware bring-up
Schematic reading
Datasheet reading
Driver development
Closed-loop control algorithm implementation
System testing
Debugging
Oscilloscopes
Protocol analyzers
HIL setups
Python scripting
Docker
GCC
GDB
VS Code
GNU Make
CMake
CI/CD pipelines
Containerized build environments
Bitbucket Pipelines
GitHub Actions
Embedded Linux
Yocto
BSP
Device tree
ARM Cortex-A processors
Bootloader design
Secure boot
OTA update mechanisms
Industrial communication interfaces
RS485
CAN FD
UWB
Ethernet
Modbus RTU/TCP
Power conversion
Energy storage
Grid-connected equipment
BMS experience
UL/IEC standards
UL1998
IEC60730
IEC61850

Location

Austin, TX

Work Type

Onsite

Experience Level

Staff Engineer
Senior Staff Engineer
Principal Engineer

Education Level

Salary/Compensations

$110,000 to $183,000 per year

Benefits

Bonus
Equity
Benefits

About the Company

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products.
Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source.
Today, the Enphase Energy System enables users to make, use, save, and sell their own power.
Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.
Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future!