Electrical Engineer, Intern
DoorDash USA
About the Team
DoorDash Labs is DoorDash's autonomous delivery group, building the robots and hardware that move goods without a driver. The Vehicle Electrical team designs the electronics at the core of these systems, including power and motor-control electronics, charging, and the test benches that prove the whole system works.
About the Role
As a summer intern, you will own a defined hardware project in one of three areas: an on-board charger prototype, an in-house motor control circuit, or a full-power hardware test bench with motor power and battery simulation. You will take it from requirements through design, build, and bench validation, and present your results to the team at the end of the summer. You will report into the Director, Electrical Engineering in our DoorDash Labs organization.
Key Responsibilities
- Own an end-to-end project in one of three areas: an on-board charger prototype, an in-house motor control circuit, or a full-power hardware test bench.
- Design, build, and bring up hardware, from schematic and component selection through prototype assembly and debug.
- Characterize your design on the bench with lab equipment, measuring efficiency, thermal, and control performance against requirements.
- Collaborate with power electronics, firmware, and test engineers, and incorporate design review feedback into your work.
- Document your results and present your findings to the team at the end of your internship.
Qualifications
- Pursuing a B.S. or M.S. Degree in Electrical Engineering or equivalent.
- No more than 2 years of full-time work experience.
- Graduating between Fall 2027 to Summer 2028.
- Available for a May or June 2027 start date.
- Coursework or project experience in power electronics, including switch-mode converters (buck, boost, PFC, isolated DC-DC), gate drive, magnetics, and power-stage design.
- Understanding of motor control fundamentals, including BLDC/PMSM drives, inverter half-bridges, field-oriented control, and current and position sensing.
- Understanding of analog and feedback-control fundamentals, including op-amp sensing circuits, ADC signal conditioning, loop compensation, and stability analysis.
- Ability to capture schematics and lay out PCBs in a tool such as Altium or KiCad, with awareness of high-current layout, thermal, and EMC considerations.
- Understanding of lithium-ion battery charging (CC/CV profiles, protection limits) and how a battery management system interfaces with a charger or load.
- Hands-on lab experience with oscilloscopes, differential probes, power supplies, and electronic loads, and ability to safely debug high-current, high-voltage hardware.
- Ability to write Python or C/C++ for instrument automation, data acquisition, or microcontroller bring-up.
- Able to work onsite at our Oakland, CA office.