Senior Motor Control Engineer

About the Team

DoorDash Labs is an independent team within DoorDash. We explore robotics and automation to transform last mile logistics in the long term. If you have a passion for applying robotics solutions in a service used by millions of people, we want to talk to you

About the Role

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.

You're excited about this opportunity because you will…

• 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

What we're looking for…

• 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 have...

• 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

Compensation

The successful candidate's starting pay will fall within the pay range listed below and is determined based on job-related factors including, but not limited to, skills, experience, qualifications, work location, and market conditions. Base salary is localized according to an employee's work location. Ranges are market-dependent and may be modified in the future.

In addition to base salary, the compensation for this role includes opportunities for equity grants. Talk to your recruiter for more information.

DoorDash cares about you and your overall well-being. That's why we offer a comprehensive benefits package to all regular employees, which includes 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). DoorDash also offers medical, dental, and vision benefits, 11 paid holidays, disability and basic life insurance, family-forming assistance, and a mental health program, among others.

To learn more about our benefits, visit our careers page here.

See below for paid time off details:

• For salaried roles: flexible paid time off/vacation, plus 80 hours of paid sick time per year.
• For hourly roles: vacation accrued at about 1 hour for every 25.97 hours worked (e.g. about 6.7 hours/month if working 40 hours/week; about 3.4 hours/month if working 20 hours/week), and paid sick time accrued at 1 hour for every 30 hours worked (e.g. about 5.8 hours/month if working 40 hours/week; about 2.9 hours/month if working 20 hours/week).

The national base pay range for this position within the United States, including Illinois and Colorado. $134,000—$197,000 USD About DoorDash

At DoorDash, our mission to empower local economies shapes how our team members move quickly, learn, and reiterate in order to make impactful decisions that display empathy for our range of users—from Dashers to merchant partners to consumers. We are a technology and logistics company that started with door-to-door delivery, and we are looking for team members who can help us go from a company that is known for delivering food to a company that people turn to for any and all goods.

DoorDash is growing rapidly and changing constantly, which gives our team members the opportunity to share their unique perspectives, solve new challenges, and own their careers. We're committed to supporting employees' happiness, healthiness, and overall well-being by providing comprehensive benefits and perks including premium healthcare, wellness expense reimbursement, paid parental leave and more.

Our Commitment to Diversity and Inclusion

We're committed to growing and empowering a more inclusive community within our company, industry, and cities. That's why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel.

Statement of Non-Discrimination: In keeping with our beliefs and goals, no employee or applicant will face discrimination or harassment based on: race, color, ancestry, national origin, religion, age, gender, marital/domestic partner status, sexual orientation, gender identity or expression, disability status, or veteran status. Above and beyond discrimination and harassment based on "protected categories," we also strive to prevent other subtler forms of inappropriate behavior (i.e., stereotyping) from ever gaining a foothold in our office. Whether blatant or hidden, barriers to success have no place at DoorDash. We value a diverse workforce – people who identify as women, non-binary or gender non-conforming, LGBTQIA+, American Indian or Native Alaskan, Black or African American, Hispanic or Latinx, Native Hawaiian or Other Pacific Islander, differently-abled, caretakers and parents, and veterans are strongly encouraged to apply. Thank you to the Level Playing Field Institute for this statement of non-discrimination.

Pursuant to the San Francisco Fair Chance Ordinance, Los Angeles Fair Chance Initiative for Hiring Ordinance, and any other state or local hiring regulations, we will consider for employment any qualified applicant, including those with arrest and conviction records, in a manner consistent with the applicable regulation.

If you need any accommodations, please inform your recruiting contact upon initial connection.

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