SST & BESS Applications Engineer — Power Electronics

Heron Power Inc.; Scotts Valley (CA); Hybrid; USD 130,000 - 160,000; Full time

Job summary

Heron Power Inc. in Scotts Valley, CA, seeks a Systems Integration Engineer focused on SST & BESS applications to advance grid-scale power solutions. You will bring up hardware in lab and pilot sites, write Python tests, and work with SW/FW teams to improve product performance.

The role requires 5+ years in power electronics or battery systems, strong DC fundamentals, and hands-on testing. You will own end-to-end validation, automate tests, and ensure safe operation of high-power equipment.

Qualifications

• 5+ years of hands-on experience in power electronics, energy storage, EV, grid, or a comparable hardware-intensive environment.
• Strong grasp on DC circuit fundamentals: resonances, parasitics, slew rates, inductive spikes, correlate test data with simulations.
• 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, converters, BMS, DC pre-charge, contactors and protection, thermal and cooling loops.
• Comfort with lab instrumentation (oscilloscopes, power analyzers, DAQ systems) and comms protocols such as CAN and Modbus TCP.
• Scrappy mindset: you get things done with a hundred hurdles in front of you.

Responsibilities

• Own end-to-end application testing of a novel high C-rate battery pack (SuperBBU) with SST, validating ripple mitigation and power-loss profiles.
• Support 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.
• Support integration testing of the SST with DAS, SCADA and EMS systems.
• Own Heron's first pilot deployments: review field performance, identify feature gaps, and work with SW/FW teams to turn findings into product improvements.
• Write and maintain Python-based test automation to command power converters, sequence tests, log data, and turn manual procedures into repeatable automated loops.
• Safely operate power converters, chillers, contactors, and protection hardware, and set up cabling, instrumentation, and data acquisition for high-power test runs.

Skills

Power electronics

DC fundamentals

Scripting & test-automation

Lab instrumentation

CAN & Modbus

First principles

Tools

LTspice

Simscape

PLECS

Job description

Heron Power Inc. in Scotts Valley, CA, seeks a Systems Integration Engineer focused on SST & BESS applications to advance grid-scale power solutions. You will bring up hardware in lab and pilot sites, write Python tests, and work with SW/FW teams to improve product performance.

The role requires 5+ years in power electronics or battery systems, strong DC fundamentals, and hands-on testing. You will own end-to-end validation, automate tests, and ensure safe operation of high-power equipment.