Electrical Engineering- Senior

Reflex Robotics Job Opportunity
Reflex Robotics builds general-purpose, AI-powered humanoid robots for the toughest jobs in industry. We're focused on jobs that are genuinely hard on the human body: lifting 40-pound bags of dog food, loading boxes for an entire shift, and moving heavy materials from floor to high overhead shelves. Factory and warehouse work demands more. The hardware needs strength, reach, precision, speed, and the battery life to be useful across multiple shifts. Our robot costs $32K at development volumes today.
We build the full robot stack ourselves, from cameras and compute to actuators, electronics, and software. Our custom-built supervision stack helps handle the hard parts of deployment, from real floor variability to keeping work moving without line disruption. That supervision also generates proprietary real-world data that helps improve autonomy over time.
We are a four year old startup backed by Khosla Ventures and a team of other great investors. Our team includes alumni from Anduril, Oculus, Amazon, Waymo, Skydio, Boston Dynamics, ASML, MIT, Jane Street, and Joby Aviation.
We develop custom servo actuators, compute, networking, cameras, sensors, and power electronics for our robots. We are looking for a senior electrical engineer to own the robot's power electronics and power distribution architecture. This includes the battery management system, bus voltage switching, e-stop integration, precharge, cabling, motor inverters, and EMI mitigation.
You will be responsible for defining requirements, making system-level architecture decisions, and taking designs from concept through bring-up, testing, and deployment. Miniaturizing motor drives by reducing bus capacitance and switching-stage size without sacrificing efficiency or creating EMI problems
Improving motor inverter performance, reliability, thermal performance, and packaging
We love engineers who have built systems they are genuinely proud of, whether that is a shipped product, a difficult technical project, or something they built outside of work.
Strong electrical engineering fundamentals
Deep experience designing power electronics systems, ideally in the ~48V range
Comfortable debugging power electronics with scopes, power supplies, current probes, and other lab equipment
Strong understanding of system-level tradeoffs across electrical, firmware, mechanical, thermal, and cost constraints
Experience taking complex electrical designs from concept through prototype and validation
BS or higher in Electrical Engineering or a related field
Bonus Qualifications

Experience with low-voltage power electronics for robotics, electric aircraft, EV subsystems, industrial automation, or servo systems
Control systems or stability analysis experience
Experience managing PCB layout contractors or other external engineering resources
Cross-disciplinary experience with firmware, embedded systems, or mechanical design
Reflex is de-risked enough to see the hazy outlines of success, but still small enough that there's enormous upside for grabs. This is a rare opportunity to help build a flagship robotics company from the ground up and to do work that will truly matter, reshaping what people believe is possible in robotics.
Have a portfolio or a project that people tend to say 'wait, you built that?'