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Controls and Firmware Engineer

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Controls and Firmware Engineer in USA new

  • Fluidstack
  • Full time
  • Email
  • Austin, TX

Responsibilities

  • Write control firmware for solid-state transformer cells and blocks, including modulation, closed-loop voltage and current control, and voltage sharing across series-stacked cells.
  • Build fast protection logic that detects faults and safely shuts down converters within microseconds.
  • Implement startup, precharge, cell bypass, and output reconfiguration from 800 V to 1,500 V.
  • Connect cell controllers to block masters and site control systems across isolation barriers, including operator-facing telemetry.
  • Validate firmware on hardware-in-the-loop rigs before deployment to high-voltage prototypes.

Requirements

  • Experience writing control firmware for full-power converters and debugging it on the bench with an oscilloscope.
  • Experience controlling resonant or dual active bridge converters or balanced series-connected cells.
  • Experience implementing microsecond-scale, fail-safe protection logic in an FPGA or DSP.
  • Experience using hardware-in-the-loop or model-based design to identify firmware bugs before hardware deployment.
  • Experience maintaining firmware in version control with reviews and automated tests and demonstrating the release history of shipped software.
  • Preferred experience includes TI C2000, Xilinx or Intel FPGAs, MATLAB/Simulink, PLECS, Typhoon HIL, OPAL-RT, CAN, EtherCAT, fiber links, IEC 61508, and MISRA C.

Benefits

  • Fluidstack states that it is committed to pay equity and transparency.
  • Fluidstack is an Equal Employment Opportunity Employer.

Salary: $210k - $270k/yr

Fluidstack

Fluidstack provides on-demand GPU cloud infrastructure for AI training and inference, offering dedicated clusters of NVIDIA H200 and GB200 systems. The company sells compute capacity and managed clusters to AI labs, enterprises, and public-sector teams that need high-throughput workloads. Founded...

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