Senior Product Test Engineer, Energy Storage Applications

Location: Scotts Valley, United States; on-site

Salary: $130,000–$160,000 per year, plus equity and benefits.

Company

hirify.global is a startup developing scalable power-electronics hardware, including solid-state transformers, inverters, and rectifiers for renewable energy, storage, loads, and grid electrification.

What you will do

• Own end-to-end application testing of the SuperBBU high-C-rate battery pack with Heron’s solid-state transformer, validating ripple mitigation, backup capability, slew rates, and power-loss profiles.
• Support SST and utility-scale BESS integration testing at pilot sites, including EMS communication, black start, grid-forming coordination, charge/discharge cycling, and round-trip efficiency.
• Integrate the SST with commercial DAS, SCADA, and EMS systems.
• Own pilot deployments, review field performance, identify feature gaps, and work with software and firmware teams on product improvements.
• Develop and maintain Python test automation to command power converters, sequence tests, log data, and replace manual procedures with repeatable automated loops.
• Operate high-power test equipment safely and set up cabling, instrumentation, chillers, contactors, protection hardware, and data acquisition systems.

Requirements

• 5+ years of hands-on experience in power electronics, energy storage, EV, grid, or a comparable hardware-intensive environment.
• Strong understanding of DC circuit fundamentals, including resonances, parasitics, slew rates, and inductive spikes, with the ability to correlate test data with simulations.
• Strong scripting and test-automation skills for driving instruments and power converters and for logging and analyzing data.
• Working knowledge of power conversion and battery systems, including inverters, converters, BMS, DC pre-charge, contactors, protection, and thermal and cooling loops.
• Experience with oscilloscopes, power analyzers, DAQ systems, CAN, and Modbus TCP.
• Experience with solid-state transformers or grid-forming inverters, utility-scale BESS commissioning or EMS integration, systems-level testing, and tools such as LTspice, Simscape, or PLECS.

Culture & Benefits

• Collaborative environment focused on personal, technical, and career growth.
• First-principles engineering and solving difficult technical problems.
• Competitive compensation with salary and equity.
• Benefits package included.