Controls and Firmware Engineer, Power Electronics

Skills

About the Role

You will write the control firmware for every solid-state transformer cell and block, covering modulation, closed-loop voltage and current control, and voltage sharing across series-stacked cells. You will build microsecond-level fault protection, sequence startup and reconfiguration, connect cell controllers to block and site control systems, and prove your firmware on hardware-in-the-loop rigs before it runs on high-voltage prototypes.

Requirements

• Written control firmware that runs a power converter at full power and debugged it on the bench
• Experience controlling resonant or dual active bridge converters, or balancing series-connected cells
• Built protection logic in an FPGA or DSP that trips in microseconds and fails safe
• Used hardware-in-the-loop or model-based design
• Firmware in version control with reviews and automated tests

Responsibilities

• Write control firmware for every SST cell and block, including modulation, closed-loop voltage and current control, and voltage sharing
• Build the fast protection path that detects faults and shuts down the converter within microseconds
• Sequence startup, precharge, cell bypass, and output reconfiguration from 800 V to 1,500 V
• Connect cell controllers to the block master and site control system across isolation barriers with usable telemetry
• Prove firmware on hardware-in-the-loop rigs before running on high-voltage prototypes

Benefits

• Equity in the form of restricted stock units
• Benefits package