Sr. Motor Control Engineer

Bay Area, California
R&D Headquarters – Power Electronics /
Full-time /
Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.

In this role your primary responsibility will be to develop high-performance control algorithms for electric systems including motor-generators, power inverters, energy storage. You will create, maintain, and effectively use simulation and embeddable models of these systems for performance evaluation. You will be expected to derive high integrity plant and control models validating these through simulation and testing. This may involve auto-coding from the derived control simulation, hand coding and coding of the hardware abstraction layer. This candidate has a strong team membership skills, and the ability to lead and support multiple simultaneous projects related to DFI’s advanced control power products implementing next-generation power application solutions. You will play a key role in a small, fast-moving team and participate in architecture, design, and implementation of motor control systems and power solutions.
This engineer will work closely with the hardware, mechanical, integration, to design, develop, test and improve system-level behaviors.


    • Manage project timelines and milestones.
    • Create high integrity simulation models of electrical components and systems.
    • Utilize models to explore parameter dependence and sensitivities to stretch the bounds of highly-efficient and powerful motor control.
    • Debug and test embedded software and systems on the bench, at the dyno and in the field.
    • Follow development cycle process including: bug / defect tracking and reporting; unit, regression, and user-acceptance testing; documentation.


    • BS in EE, MS preferred, with at least 5 years of industry experience with advance control of electric motor and modeling.
    • Deep knowledge of high-performance motor control algorithms and software including various formulations of field-oriented control and direct torque/flux control.
    • Experience with motor / generators, power converters, energy storage subsystems and control algorithms is required.
    • Electric motor, power system and control algorithm modeling and simulation experience (Simulink/Pspice).
    • Implementation of control algorithms for electric motors and inverters in embedded C.
    • Automotive powertrain experience(inverters).
    • 32 bit MCU platform, preferably STM32 family and code composer.
    • Experience with Digital Signal Processors required.
    • UI and graphic UI design using Python or equivalent required. 
    • Hands-on debugging and logical problem-solving experience.
    • Track record of project management/delivery to internal and external groups on time with required quality.
    • Great communication skills (both oral and written) and a positive, team-oriented attitude.
    • Ability to work effectively in a dynamic small-company environment.
$70,000 - $300,000 a year
Position is eligible for company shares. Actual compensation may be higher or lower in the range based on various factors, including, but not limited to a candidate’s job duties, experience, and expertise. We will also consider higher level candidates and salary will be adjusted accordingly.

Diamond Foundry believes in supporting our employees from the workplace to their personal and home life. We provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Perks include employee discounts to VRAI. All benefits offered are available starting your first day.  

Diamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor under federal, state or local law.

Diamond Foundry Inc. is committed to operating in full compliance with all applicable state and federal laws. Our commitment extends to ensuring that our manufacturing and engineering departments adhere to the highest standards of legal and regulatory compliance. Additionally, these departments may have specific physical requirements to ensure the safety and efficiency of our operations. We prioritize the well-being of our employees and strive to create a work environment that promotes both legal compliance and the optimal functioning of our manufacturing and engineering processes.

Manufacturing and Engineering Departments Physical Requirements:
-Use appropriate PPE and follow all safety policies, practices, and procedures.
-This position will often: Sit, stand for long periods, walk, grasp, reach with hands and arms, lift below and above shoulders, bend, twist at the waist,  climb, balance, stoop, squat,  kneel, crawl, talk, hear, see, use fine finger manipulation, and complete repetitive motions. 
-Some tasks may require the use of ladders or stairs
-Some tasks may require driving or the use of foot controls
-Lift/carry and push/pull up to 50 pound

This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.
If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment.
Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.