Senior Motor Control Engineer

Doordash•Concord, CA

28d•$134,000 - $197,000

About The Position

In this role, your main focus will be to design and test control algorithms for Permanent Magnet Synchronous Motors (PMSM) using model-based design methodology and integrate with the rest of the powertrain system of the delivery robot. Additionally, you will rigorously test the powertrain's performance at various levels (component testing on dyno, simulation, end-to-end road testing etc.) and continuously seek to improve development processes, testing methods, bug triage and robot performance.

Requirements

BS/MS degree in Power Electronics, Electrical, Mechatronics, Mechanical Engineering or related technical field
3+ years of experience in developing and testing of controls algorithms for PMSM
3+ years hands-on experience of building automotive, aerospace, autonomous vehicles or other complex mechatronics systems
Excellent understanding of power electronics circuits for motor controls, including gate drivers and inverters
Understands basic electronics and able to read and review board schematics
Proficiency in using lab instruments for debugging motor controls issues
Proficiency in model-based design using MATLAB/Simulink/Stateflow and strong understanding of fundamental parts of robotics or mechatronics systems: feedback control, sensors, actuators, embedded controllers, CAN communication
Working knowledge of C and auto-code generation using Embedded Coder
Experience using source control and build automation tools like Git, jenkins etc.

Nice To Haves

Working knowledge of C++/Python
Experience in building physical models of mechatronic systems for simulation
Experience using TI DRV8x gate driver chips
Experience in sensorless estimation algorithmsStrong understanding of electric powertrain and road vehicle dynamics
Deep respect and understanding for a principled and rigorous approach to testing safety-critical systems
Ability to write clear, concise and complete documentation of designs and tasks

Responsibilities

Design and implement field-oriented control (FOC) of PMSM and low-level diagnostics algorithms using MATLAB and Simulink
Tune control algorithms to optimize powertrain performance using closed-loop simulation, dyno testing and robot-level testing
Build infrastructure (plant models, functional models) to systematically verify the behavior of control laws and algorithms using Simulink Test
Proactively design features/systems/processes to exceed the needs of internal customers i.e. robot operations, field service, autonomy software stack and hardware
Define and solve new problems not listed here using new skills and knowledge that you may have to acquire on the fly!

Benefits

a 401(k) plan with employer matching
16 weeks of paid parental leave
wellness benefits
commuter benefits match
paid time off and paid sick leave in compliance with applicable laws (e.g. Colorado Healthy Families and Workplaces Act)
medical, dental, and vision benefits
11 paid holidays
disability and basic life insurance
family-forming assistance
a mental health program