Senior Motor Control Firmware Engineer (FOC)

Allocor Tech; Crozet (VA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Top-tier medical

Company-sponsored HSA

Dental and vision

Unlimited PTO

11 paid holidays

401(k) with match

Job summary

Allocor.Tech seeks an experienced embedded firmware engineer to implement and harden FOC for PMSM/BLDC motors. You will write real-time C/C++ on Cortex-M devices, handle sensorless paths, and extend the allocore SDK for outer loops.

You will bring up new hardware in collaboration with the hardware and EE teams, building robust test stories for flight and salt-water environments. Expect to own complex control loops, intermittently work with CAN/RS-485, and contribute to production-ready software

Qualifications

• 5+ years embedded motor-control firmware experience.
• FOC on PMSM/BLDC required; not just a résumé bullet.
• Production C/C++ on bare metal or a thin RTOS.
• CAN (2.0/FD) and RS-485 experience.
• Sensorless observers and advanced motor-control topics are a plus.

Responsibilities

• Implement and harden FOC: Clarke/Park, current and speed loops, field weakening, overmodulation, dead-time.
• Write real-time C/C++ on Cortex-M and similar: PWM, ADC, DMA, isolated comms.
• Own sensored and sensorless paths, calibration, and protection for flight and salt water.
• Extend the allocore SDK for drop-in outer loops without touching inner loop.
• Bring up new hardware with EE and build test stories: HIL, dyno, regression, production load.

Skills

Embedded motor-control firmware

FOC on PMSM/BLDC

Discrete-time control

SVPWM

Cortex-M / STM32-class

Bare metal / RTOS programming

CAN 2.0/FD

RS-485

Encoder / Hall interfaces

Sensorless observers (bonus)

Tools

Cortex-M toolchain

STM32-family

Real-time OS

Job description

The role

If you have spent years making Field-Oriented Control look easy on a bench and want that code to propel aircraft and boats, read this. Taurus controllers run full four-quadrant FOC through SVPWM at 40 kHz-class rates, 20–405 V, Hall/QEP, isolated CAN and RS-485, regen, and hybrid-electric modes — on Allocortech’s allocore C++ SDK. You own the loops that make torque, not a reference design.

What you will do

• Implement and harden FOC: Clarke/Park, current and speed loops, field weakening, overmodulation, dead-time, observers.
• Write real-time C/C++ on Cortex-M and similar (STM32-class and beyond): PWM, ADC, DMA, isolated comms.
• Own sensored and sensorless paths, calibration, and protection that survive flight and salt water — not just a dyno.
• Extend the allocore SDK so customers can drop in outer loops without touching your inner loop.
• Bring up new hardware with the EE and build the test story: HIL, scripted dyno, regression, production load.

What you bring

• 5+ years embedded motor-control firmware. FOC on PMSM/BLDC is required, not a résumé bullet.
• Discrete-time control, transforms, SVPWM, current-loop bandwidth.
• Production C/C++ on bare metal or a thin RTOS. You can read a scope and a map file.
• CAN (2.0/FD), RS-485, encoder/Hall interfaces.
• Bonus: sensorless observers, SiC timing, MATLAB/Simulink-to-embedded, functional safety, hybrid propulsion.

Why Allocortech

You will not be the fortieth firmware engineer on a 2029 platform. You will make Taurus quieter, more efficient, and easier to certify. Same building as the power-electronics team. Hardware on the bench. Vehicles in the field. 50+ people, revenue tripled.

Important Information

FOR CANDIDATES SEEKING TO WORK IN US OFFICES ONLY:

To conform to U.S. Government technology export regulations, including the International Traffic in Arms Regulations (ITAR), Allocor.Tech Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable.

Allocor.tech provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment at Allocor.Tech, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

Level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. Base salary is just one component of our total rewards package. Employees may receive equity opportunities and/or cash bonus, and have access to a robust benefits package including:

• top tier medical HMO
• PPO & a 100% company-sponsored HSA plan option
• dental and vision coverage
• unlimited PTO
• 11 paid holidays per year
• flexible spending and dependent care savings accounts
• paid parental leave
• disability insurance
• life insurance
• access to a 401(k) retirement plan with company match.

Eligibility for benefits may vary based on employment status; please check with your recruiter for a comprehensive list of the benefits available for this role. Benefit programs are subject to change at the company’s discretion.

We review applications on a rolling basis and move quickly for strong fits.