Staff Electrical Engineer, Test Systems

About PreScalar

About the Role

What You’ll Do

• Design and build automated test systems for manufacturing lines and field deployment (robotics, AV, advanced hardware)
• Own the electrical architecture of our test platforms: power distribution, signal conditioning, switching/multiplexing, and instrument integration
• Design schematics and PCBs for interface boards, load boards, and custom test hardware, and take them through review, fab, and bring-up
• Select and specify the right test equipment for each application: power supplies, electronic loads, DMMs, oscilloscopes, DAQs, SMUs, switch matrices, and protocol analyzers
• Design wiring harnesses, cabling, and electrical interfaces between our platform and customer DUTs
• Lead technical conversations with customers: scope requirements, review DUT schematics and test specs, and translate them into a test plan and system design
• Act as the on-site technical lead during installation, bring-up, and troubleshooting at customer facilities
• Write Python test sequences and instrument drivers to automate measurements
• Create schematics, BOMs, wiring diagrams, and system documentation that customers and our team can build and maintain from
• Own full build lifecycle: design > build > bring-up > validate in our SF lab > deploy at customer sites
• Feed recurring customer needs back into PreScalar’s product roadmap

What We’re Looking For

• 11+ years of electrical engineering experience, ideally designing test systems or hardware for manufacturing environments
• Strong EE fundamentals: analog and digital circuits, power electronics, signal integrity, grounding, and noise
• Hands-on at the bench: comfortable soldering, reworking boards, building harnesses, and debugging hardware end-to-end
• Deep knowledge of test and measurement equipment, and sound judgment on which instrument fits a measurement (accuracy, bandwidth, isolation, channel count, cost)
• Proficiency with schematic capture and PCB layout tools (Altium, KiCad, or similar)
• Proficiency in Python (test control, instrument control via SCPI/VISA, automation)
• Customer-facing experience: able to run a technical meeting, scope a project, and earn the trust of a customer’s engineering team
• Clear written and verbal communication; able to explain technical tradeoffs to engineers and non-technical stakeholders alike
• Experience deploying hardware into production or operational environments

Relevant experience (one or more)

• Robotics, consumer electronics, medical device, automotive, aerospace, etc.
• Vehicle or embedded comms: CAN, EtherCAT, Serial, Automotive Ethernet
• In-circuit (ICT), functional (FCT), end-of-line, or HIL test systems
• Field applications, solutions engineering, or other customer-facing technical roles

Nice to have

• Microcontroller/firmware programming
• OpenHTF or similar test frameworks
• High-voltage, battery, or motor drive testing
• Familiarity with safety and compliance standards (UL, IEC, EMC pre-compliance)
• Data visualization

Why Join PreScalar

• Real ownership on a small team, with a direct line to the founders.
• Exposure to a wide range of frontier companies across Silicon Valley, across autonomous vehicles, robotics, defense, and medical systems.
• Work on hardware that ships: autonomous vehicles, robotics, defense, and medical systems.
• Variety: every customer brings a new product, a new floor, and new problems to solve.
• Shape the product and the FDE function itself as one of our first hires in the role.

Logistics

Compensation