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Bess Application Engineer Jobs in California (NOW HIRING)

Gotion, Inc.

Solution Engineer, ESS

Fremont, CA · On-site

... application of relevant electrical codes, energy-storage standards, and customer requirements. Engineering Tools and Process Improvement * Support the development and maintenance of BESS sizing tools ...

EPC POWER CORP.

Applications Engineer

Poway, CA · On-site

$150K - $180K/yr

Develop reference architectures, application notes, and technical collateral * Travel up to 25% to ... BESS, UPS, inverters, or mission-critical power systems Benefits * 401(k) with company matching

Inlyte Energy

Technical Program Manager

San Leandro, CA · On-site

$121K - $148K/yr

Own application and report writing and team coordination to ensure all success metrics are met ... Bachelor's degree in Electrical Engineering, Mechanical Engineering, Chemical Engineering, or ...

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Bess Application Engineer information

What are the key skills and qualifications needed to thrive as a BESS Application engineer?

To thrive as a BESS (Battery Energy Storage System) Application Engineer, you need a solid background in electrical engineering, energy storage systems, and system integration, often supported by a relevant degree. Proficiency with simulation tools (like MATLAB/Simulink), SCADA systems, and knowledge of grid standards or certifications such as PMP or PE are typically required. Strong problem-solving abilities, effective communication, and project management skills set outstanding candidates apart. These competencies are vital to ensure safe, efficient, and reliable design and implementation of BESS projects in a rapidly evolving energy sector.

What is the difference between Bess Application Engineer vs BESS Project Engineer?

AspectBess Application EngineerBESS Project Engineer
Primary FocusDesigning and optimizing BESS applications for clientsManaging BESS project execution from planning to completion
Required CredentialsEngineering degree, knowledge of energy storage systemsEngineering degree, project management experience
Work EnvironmentTechnical, client-facing, R&DFieldwork, project sites, coordination with teams

The Bess Application Engineer primarily focuses on designing and customizing energy storage solutions, while the BESS Project Engineer manages the implementation and execution of BESS projects. Both roles require engineering knowledge, but differ in scope and daily activities, catering to different stages of the BESS lifecycle.

What is a BESS Application engineer?

A BESS Application Engineer is a professional who specializes in the design, implementation, and optimization of Battery Energy Storage Systems (BESS). They work closely with clients to understand energy storage requirements, select suitable technologies, and ensure systems are integrated effectively with renewable energy sources or grid infrastructure. Their role involves technical analysis, system specification, and supporting the deployment and operation of BESS projects. BESS Application Engineers often collaborate with project managers, electrical engineers, and software developers to deliver reliable and efficient energy storage solutions.

What are some common challenges faced by BESS Application engineers when integrating battery energy storage systems with existing power infrastructure?

BESS Application Engineers often encounter challenges such as ensuring seamless compatibility between new battery storage solutions and legacy grid systems, managing diverse communication protocols, and addressing site-specific installation requirements. They also need to balance project timelines with regulatory compliance, and coordinate closely with utility partners, project managers, and commissioning teams. Successfully overcoming these challenges requires strong technical knowledge, attention to detail, and effective collaboration with multidisciplinary teams.
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Infographic showing various Bess Application Engineer job openings in California as of August 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 67% In-person, and 33% Remote job distribution.

Senior Applications Engineer

Heron Power Electronics Company

Scotts Valley, CA • On-site

$130K/yr

Full-time

Posted 15 days ago

Job description

What to Expect
Heron Power is a startup company building cutting-edge power electronics for the 21st-century grid. We aim to debottleneck the growth of electricity generation and consumption with scalable, innovative, and less costly hardware solutions, accelerating the electrification of everything.
Our first focus goal is to build better converters (inverters & rectifiers) to connect large-scale renewables, storage, and loads to the grid. Heron Power's leadership team is made up of seasoned veterans who have designed and shipped gigawatts of power conversion products over the past decade.
We understand that no one individual knows everything. We will all learn a lot together and from each other. We strive to build a collaborative, enriching environment conducive to personal, technical, and career growth. You can expect to work in a dynamic and collaborative environment, driven by first principles engineering, solving difficult problems.
Job Overview
You will own application-specific testing of Heron's solid state transformer (SST) across its core use cases: powering AI data centers, utility-scale BESS, and PV plants. That means bringing up hardware in the lab and at pilot sites, writing scripts to drive test equipment and power converters, and debugging performance against what each application demands, from MPPT performance and PPC/EMS/BMS communication to AI load smoothing and DC protection coordination. You will work hand in hand with the Systems Integration team: they own the SST platform; you own the applications.
How You Will Contribute
  • Own end-to-end application testing of a novel high C-rate battery pack (SuperBBU) with Heron's SST, validating ripple mitigation, backup capability, slew rates, 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 commercial off-the-shelf 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.

What You Will Bring
We have a short list of must-have requirements. We prioritize a strong grip on first principles, hands-on skills, and a sense of initiative.
Must-Have Requirements
  • 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, and inductive spikes. You can 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, and 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.

Nice-to-Haves
  • 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.

If you are passionate about the energy transition and enjoy working at the frontier of power electronics and grid integration, we would love to hear from you. Join us in accelerating the electrification of everything at Heron Power.
Heron Power provides competitive compensation (salary and equity) and benefits. The salary for this role ranges from $130,000 to 160,000 per year.

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