Senior Motor Control Firmware Engineer (FOC)

Allocor Tech•Crozet, VA

9d•$125,000 - $155,000•Onsite

About The Position

The role involves developing and implementing Field-Oriented Control (FOC) for Taurus controllers, which operate at high speeds and voltages. The engineer will be responsible for the core control loops that manage torque, using the allocore C++ SDK. This position offers the opportunity to work on code that will be used in aircraft and boats, moving beyond reference designs to own critical functionalities.

Requirements

Minimum of 5 years of experience in embedded motor-control firmware development.
Required expertise in Field-Oriented Control (FOC) on Permanent Magnet Synchronous Motors (PMSM) and Brushless DC (BLDC) motors.
Proficiency in discrete-time control theory, transforms, Space Vector Pulse Width Modulation (SVPWM), and current-loop bandwidth.
Experience writing production-level C/C++ code for bare-metal or thin Real-Time Operating Systems (RTOS).
Ability to interpret oscilloscope waveforms and map files.
Familiarity with communication protocols such as CAN (2.0/FD) and RS-485, as well as encoder and Hall effect sensor interfaces.

Nice To Haves

Experience with sensorless observers.
Knowledge of Silicon Carbide (SiC) timing.
Experience with MATLAB/Simulink for embedded code generation.
Familiarity with functional safety standards.
Experience with hybrid propulsion systems.

Responsibilities

Implement and harden FOC algorithms including Clarke/Park transforms, current and speed loops, field weakening, overmodulation, dead-time compensation, and observers.
Write real-time C/C++ code for microcontrollers (Cortex-M, STM32-class and beyond), managing PWM generation, ADC, DMA, and isolated communication interfaces.
Develop and maintain sensored and sensorless motor control paths, including calibration and protection mechanisms suitable for demanding environments like flight and marine applications.
Extend the allocore SDK to enable customers to integrate their own outer control loops without modifying the core inner loop firmware.
Collaborate with the hardware engineering team for new hardware bring-up, and develop comprehensive testing strategies including Hardware-in-the-Loop (HIL), scripted dynamometer testing, regression testing, and production load testing.