RoleAt Amperesand, you own validation of the power electronics that go into our solid-state transformers. As the technical validation lead for a major SST subsystem, you will take it from first bring-up through design validation, qualification, and continuous regression: building the test systems, defining the strategy, and holding the bar for what it means for high-power, high-voltage hardware to work flawlessly.
Responsibilities- Serve as the technical validation lead for an assigned SST subsystem, owning the validation strategy, plan, and schedule from initial design validation through production ramp and sustaining releases.
- Design, develop, and maintain test systems for high-voltage, high-current power electronics, including load banks, source/sink and back-to-back converter setups, and thermal chambers.
- Characterize and validate the electrical, thermal, and performance behavior of our products across prototype, pre-production, and production builds: efficiency and loss breakdown, switching behavior, gate drive integrity, insulation coordination, derating, and margin to limits.
- Own the regression suite for your subsystem so that every hardware revision and firmware release is held to the same bar and automate it so it runs continuously without hand-holding.
- Drive root cause analysis on failures and field escapes, from component-level debug through full-system interaction and follow fixes through to verified closure.
- Collaborate closely with hardware design, firmware, magnetics, mechanical, and systems teams from early architecture reviews onward, and push for design-for-test and design-for-validation features before layouts are frozen.
- Mentor engineers and technicians on high-voltage practice, measurement technique, and debug methodology. Review test plans and results across the team.
- Establish and uphold high-voltage safety practices in the lab, including interlocks, procedures, and training.
- Challenge ideas and decisions with reasoning from first principles.
- Travel to different facilities worldwide to collaborate with teams and deploy our solutions.
Qualifications- BS or MS in Electrical or Computer Engineering.
- 6+ years of hands-on experience in test, validation, or integration engineering, with substantial time spent on power electronics.
- Demonstrated ownership of a product or subsystem through a full validation cycle, from first bring-up and design validation to production and sustaining regression.
- Deep understanding of power electronics principles: switching converter topologies, magnetics, gate drive, control loops, high-voltage and high-current systems, and power conversion technologies.
- Strong hands-on high-voltage lab skills and a rigorous, safety-first approach to working at power.
- Solid experience with PCBA schematics and debugging hardware down to the component level.
- Fluency with oscilloscopes, high-voltage differential probes, current shunts and Rogowski coils, power analyzers, multimeters, dielectric withstand testers, and thermal instrumentation such as thermocouples and IR imaging.
- Comfort with the data side of validation: structured results, dashboards, and statistical analysis that make a decision obvious.
- Be engaged, proactive, and positive when taking on challenging tasks, owning assignments, and taking accountability for personal and overall team success.
Nice to Have- Experience with grid-tied inverters and active front ends, or DC fast charging.
- Familiarity with partial discharge, dielectric withstand, and insulation coordination against standards such as IEC 61800-5-1, UL 1741, or IEEE 1547.
- SiC or GaN device characterization, including double-pulse testing, switching loss measurement, and short-circuit behavior.
- EMC pre-compliance testing.
- Grounding and shielding design for fast-switching systems.
- HALT/HASS, accelerated life testing, or reliability engineering exposure.
- Experience using system-level languages (such as Golang, Rust, C, C++, etc.) to automate systems, along with Python for instrument control and data analysis.
SF Pay Range
$165,000-$200,000 USD
Pay Disclosure & BenefitsCompensation will be determined based on experience, location, and other factors permitted by law.
The benefits outlined below apply exclusively to employees located in the United States.
- Competitive Salary + Incentive Stock Options
- Medical, vision, and dental benefits for employees and their dependents, effective from the start of hire
- Company paid Basic Life, AD&D, short-term and long-term disability insurance
- 401k retirement savings plan through Empower
- Employees receive paid time off (PTO), paid sick days, and paid company holidays
- 100% paid maternal leave (12 weeks) and paternal leave (6 weeks)
Singapore-based employees receive benefits in accordance with local government provisions.
