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Salary: USD 120,000 - 160,000 / annual
Heron Power is building cutting-edge power electronics for grid modernization, focusing on solid-state transformers (SSTs) to connect large-scale renewables, storage, and loads. The company aims to accelerate electrification through scalable, innovative hardware solutions.
As Hardware Applications Engineer, you will own application-specific testing of Heron's SST across three core use cases: powering AI data centers, utility-scale battery energy storage systems (BESS), and photovoltaic plants. Your responsibilities include:
- End-to-end application testing of a novel high C-rate battery pack (SuperBBU) with the SST, validating ripple mitigation, backup capability, slew rates, and power-loss profiles
- Supporting SST and utility-scale BESS integration testing at pilot sites, covering EMS-to-SST communication, black start and grid-forming coordination, charge/discharge cycling, and round-trip efficiency
- Integration testing of the SST with commercial off-the-shelf DAS, SCADA, and EMS systems
- Owning Heron's first pilot deployments: reviewing field performance, identifying feature gaps, and collaborating with software/firmware teams to drive product improvements
- Writing and maintaining Python-based test automation to command power converters, sequence tests, log data, and convert manual procedures into repeatable automated loops
- Safely operating power converters, chillers, contactors, and protection hardware; setting up cabling, instrumentation, and data acquisition for high-power test runs
You will work hand-in-hand with the Systems Integration team, which owns the SST platform while you own the applications. The company emphasizes first-principles engineering, collaborative problem-solving, and personal/technical growth.
REQUIREMENTS:
Must-have:
- 1+ years of hands-on experience in power electronics, energy storage, EV, grid, or comparable hardware-intensive environment
- Strong grasp of DC circuit fundamentals: resonances, parasitics, slew rates, and inductive spikes; ability to correlate test data with simulation results
- Strong scripting and test-automation skills to drive instruments and power converters and to log and analyze data
- Working knowledge of power conversion and battery systems: inverters and converters, BMS, DC pre-charge, contactors and protection, thermal and cooling loops
- Comfort with lab instrumentation (oscilloscopes, power analyzers, DAQ systems) and communications protocols such as CAN and Modbus TCP
- Scrappy mindset: ability to get things done with significant obstacles
Nice-to-have:
- Experience with solid-state transformers or grid-forming inverters
- Familiarity with utility-scale BESS commissioning, grid-support functions, or EMS integration
- Prior experience in systems-level testing of power electronics or energy storage products
- Hands-on experience with circuit and system simulation tools such as LTspice, Simscape, or PLECS
