Firmware Engineer (Power Electronics)

Location: Austin, TX, United States. On-site

Company

hirify.global develops scalable solar and battery storage systems designed for fast deployment, cost efficiency, and large-scale manufacturing.

What you will do

• Develop embedded firmware in C for DSP-based AC-DC, DC-DC, Dual Active Bridge, and LLC resonant power converters.
• Implement and tune real-time PI, PID, PR, and other digital control loops for power conversion.
• Develop MPPT, battery charging, micro-grid forming and following, and nested DSP, MCU, and processor control algorithms.
• Implement communication between processors, controllers, and system-level devices using serial and poll/response protocols.
• Bring up, debug, optimize, and validate converter hardware and controls with power electronics, systems, and test engineers.
• Analyze test results, participate in technical design reviews, and maintain firmware architecture, interfaces, and test documentation.

Requirements

• Bachelor’s degree in electrical engineering, computer engineering, embedded systems, or a related STEM discipline.
• At least 3 years of professional experience developing embedded software, firmware, or digital controls for power electronics, motor drives, power supplies, or similar real-time systems.
• Strong programming experience in C and C++, including object-oriented programming in C and C#.
• Experience with DSPs, microcontrollers, FPGAs, or similar real-time digital controllers, including Freescale-NXP, STM32, Microchip, or Texas Instruments platforms.
• Experience developing and debugging voltage and current control loops, PWM, ADC sampling, interrupts, timers, and hardware protection for AC-DC and DC-DC power conversion.
• Hands-on experience using oscilloscopes, logic analyzers, debuggers, and similar tools, plus familiarity with I2C, SPI, ModBus, and CANbus.

Culture & Benefits

• Engineering-led environment focused on rapid iteration, vertical integration, and a test-like-you-fly approach.
• Close collaboration across firmware, power electronics, systems, and test engineering.
• Work on clean energy products combining solar generation with distributed battery storage.