Real-Time Embedded Firmware Architect — SST Platform

Enphase Energy; Austin (TX); On-site; USD 110,000 - 183,000; Full time

Job summary

Enphase Energy is seeking seasoned firmware engineers to join the CTO SST platform team in Austin. You will design and ship real-time embedded firmware in C/C++ for multi-processor platforms, integrating control loops with power electronics and device drivers.

Role levels include Staff/Senior Staff/Principal with opportunities for architecture ownership, reviews, mentoring, and hiring. Expect collaboration across hardware, software, and manufacturing during bring-up and testing.

Qualifications

• Expert-level C and Modern C++ for real-time embedded applications.
• Bare-metal and Zephyr RTOS firmware development.
• ARM Cortex-M/R microcontroller architectures and peripherals (ADC, PWM, UART, I2C, SPI, CAN).
• Hardware bring-up, schematic reading, data sheets and driver development.
• Closed-loop control algorithms on embedded targets.
• System testing and debugging 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.

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 — unit tests, HIL, and prototype testing.
• Collaborate cross-functionally through DVT, factory test, and field quality.
• At senior levels: own platform architecture, lead reviews, mentor engineers, and drive hiring.

Skills

C/C++

Real-time embedded

ARM Cortex

Bare-metal/Zephyr

Functional safety

HW bring-up

Python scripting

System design

Debugging/Testing

Cross-functional collaboration

Education

BS EE

MS EE

PhD EE

Tools

Docker

GCC

GDB

VS Code

GNU Make

CMake

Yocto

GitHub Actions

Job description

Enphase Energy is seeking seasoned firmware engineers to join the CTO SST platform team in Austin. You will design and ship real-time embedded firmware in C/C++ for multi-processor platforms, integrating control loops with power electronics and device drivers.

Role levels include Staff/Senior Staff/Principal with opportunities for architecture ownership, reviews, mentoring, and hiring. Expect collaboration across hardware, software, and manufacturing during bring-up and testing.