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About the Role
The Enphase Modeling and Controls team is seeking a Staff Firmware Engineer to develop, integrate, and validate the inverter control firmware at the core of the Solid-State Transformer (SST) platform. This role involves solving complex problems in power conversion and shaping control algorithms for inverter products, with a current focus on SST development for data center power infrastructure.
Responsibilities
- Design and implement firmware, primarily in C and C++, for real-time operation and control.
- Validate firmware through software simulations, hardware-in-the-loop testing, and prototype bench testing.
- Build and maintain CI/CD pipelines in Bitbucket Pipelines, including automated builds, static analysis, unit testing, and artifact generation.
- Support power electronics and controls engineers during hardware bring-up by integrating, debugging, and tuning embedded firmware on inverter prototypes.
- Optimize product solutions with firmware/hardware control co-design.
- Collaborate with cross-functional teams to define firmware requirements, interfaces, and integration strategies.
- Mentor junior staff.
Requirements
- BS/MS/PhD Computer Science, Computer Engineering, Electrical Engineering, or a closely related discipline.
- 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.
- Expert-level C and C++ proficiency, including memory management, linker scripts, bootloader development, and secure boot concepts.
- Strong debugging and systems analysis skills, including diagnosing stack overflows, memory corruption, and hard faults; evaluating CPU utilization; and tuning task priorities.
- Expertise in bare metal and real-time operating systems, including multithreaded programming and multi-core firmware development.
- Familiarity with ARM Cortex-M4/M7 architecture.
- Knowledge of microcontroller peripherals such as ADC, GPIO, PWM, SPI, and CAN.
- Understanding of digital signal processing concepts and ability to implement them in firmware.
- Experience testing and debugging code and hardware using tools such as J-Link debug probes (SWD), oscilloscopes, and protocol analyzers.
- Proficiency with embedded toolchains and build systems, including GCC, GNU Make, CMake, and Python-based build and automation scripts.
- Experience with containerized build environments using Docker.
- Proficiency with Git version control.
- Ability to take ownership of development tasks and drive them to completion with high quality.
- Experience with AI-assisted development tools and workflows, including LLM-integrated coding environments (e.g., Devin, Copilot, or similar).
- Zephyr development experience.
- Familiarity with control loops and PID controllers.
- Desktop and embedded Linux experience.
- Familiarity with AC grid simulators and programmable loads.
- Occasional travel domestically.
- Candidates must be authorized to work in the US.
Skills
- C
- C++
- Bitbucket Pipelines
- Git
- Docker
- GCC
- GNU Make
- CMake
- Python
- J-Link debug probes (SWD)
- Oscilloscopes
- Protocol analyzers
- ARM Cortex-M4/M7
- ADC
- GPIO
- PWM
- SPI
- CAN
- Digital signal processing
- Bare metal
- Real-time operating systems
- Multithreaded programming
- Multi-core firmware development
- Memory management
- Linker scripts
- Bootloader development
- Secure boot
- Stack overflows
- Memory corruption
- Hard faults
- CPU utilization
- Task priorities
- AI-assisted development tools
- LLM-integrated coding environments
- Zephyr
- Control loops
- PID controllers
- Desktop Linux
- Embedded Linux
- AC grid simulators
- Programmable loads
Location
- Austin, TX
Work Type
- Full-time
Experience Level
- Staff
Education Level
- BS/MS/PhD Computer Science
- BS/MS/PhD Computer Engineering
- BS/MS/PhD Electrical Engineering
Salary/Compensations
- $110,000 to $151,000
Benefits
- Bonus
- Equity
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!