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Amperesand

Modular solid-state transformers for grid power

Staff Hardware Validation Engineer

Hardware Validation & TestingConfirmed live in the last 24 hours
Full-time

About the Job

Requirements

  • A Bachelor of Science or Master of Science in Electrical Engineering or Computer Engineering is required.
  • At least 6 years of hands-on experience in test, validation, or integration engineering, including substantial work with power electronics.
  • Demonstrated ownership of a product or subsystem through a full validation cycle, from initial bring-up and design validation through production and sustaining regression.
  • Deep understanding of power electronics principles, including switching converter topologies, magnetics, gate drive, control loops, high-voltage and high-current systems, and power conversion technologies.
  • Strong hands-on high-voltage laboratory skills and a rigorous, safety-first approach to working at power.
  • Experience with printed circuit board assembly schematics and debugging hardware to the component level.
  • Fluency with oscilloscopes, high-voltage differential probes, current shunts, Rogowski coils, power analyzers, multimeters, dielectric withstand testers, and thermal instrumentation such as thermocouples and infrared imaging.
  • Comfort working with validation data, including structured results, dashboards, and statistical analysis.
  • Work on-site five days a week; remote and hybrid arrangements are not offered.

Responsibilities

  • Serve as technical validation lead for an assigned solid-state transformer 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 electrical, thermal, and performance behavior across prototype, pre-production, and production builds, including efficiency and loss breakdown, switching behavior, gate drive integrity, insulation coordination, derating, and margin to limits.
  • Own and automate the subsystem regression suite so every hardware revision and firmware release is evaluated consistently and continuously.
  • Trace each product requirement to the test that verifies it and make coverage gaps visible early.
  • Drive root cause analysis on failures and field escapes, from component-level debugging through full-system interaction, and follow fixes through verified closure.
  • Define the manufacturing test specification for volume production and transfer test systems and know-how to internal and contract manufacturing teams.
  • Innovate test system design to meet accuracy, cycle time, cost, safety, and other performance factors; quantify measurement uncertainty.
  • Collaborate with hardware design, firmware, magnetics, mechanical, and systems teams from early architecture reviews, advocating for design-for-test and design-for-validation features before layouts are frozen.
  • Mentor engineers and technicians on high-voltage practice, measurement technique, and debugging methodology; review test plans and results across the team.
  • Establish and uphold high-voltage laboratory safety practices, including interlocks, procedures, and training.
  • Challenge ideas and decisions using first-principles reasoning.
  • Travel to facilities worldwide to collaborate with teams and deploy solutions.

Desired Qualifications

  • 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.
  • Experience characterizing silicon carbide or gallium nitride devices, including double-pulse testing, switching loss measurement, and short-circuit behavior.
  • Experience with electromagnetic compatibility pre-compliance testing.
  • Experience with grounding and shielding design for fast-switching systems.
  • Exposure to HALT/HASS, accelerated life testing, or reliability engineering.
  • Experience using system-level languages such as Golang, Rust, C, or C++ to automate systems, and Python for instrument control and data analysis.

About the Company

Amperesand

Modular solid-state transformers for grid power

Amperesand develops modular solid-state transformers (SSTs) for grid infrastructure using silicon carbide (SiC) devices and proprietary high-frequency transformers. The SSTs are digitally controlled and bidirectional, offered in 2, 4, and 6 MW modules that can be combined to meet larger needs, replacing traditional transformers, switchgear, and UPS in a single AI-driven system. It differentiates itself through the combination of SiC SSTs, proprietary high-frequency transformers, digital power management, and leadership from NTU R&D spun out with Temasek’s Xora Innovation, plus an experienced team from ABB, GE, Siemens, and Vestas. The goal is to speed up the energy transition by delivering scalable, compact SST systems for EV charging networks, microgrids, data centers, and industrial power, with first deliveries planned for 2025 in the US and Singapore.

Company size
51-200
Company stage
Series A
Total funding
$130M
Headquarters
Singapore
Founded
2023

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