Electrical Engineer - Battery Energy Storage & Power Distribution

Position Summary

The company’s configurable Battery Energy Storage System (BESS) platform is built on a certified battery core and inverter section, UL 9540 listed and NFPA 855 compliant.  Deployed across a framed platform, concrete base, trailer-mounted, skid-mounted, or containerized configurations with integrated HVAC and fire suppression. Every configuration can be controlled with an EMS governing operating modes.

The Electrical Engineer owns the electrical design across this platform, translating the certified core into repeatable, code-compliant product variants, and serves as the technical authority for customers, utilities, and authorities having jurisdiction.

Roles and Responsibilities

• Design AC and DC power distribution across BESS configurations, including protection coordination, grounding and bonding, switchgear and conductor specification, and auxiliary power.

• Produce and maintain single-line diagrams, schematics, panel layouts, wiring and interconnect diagrams, cable schedules, and bills of materials.

• Perform load flow, short-circuit, arc flash, voltage drop, and protective device coordination studies.

• Adapt the certified core across form factors, accounting for the transport, vibration, thermal, and anchorage constraints unique to each.

• Define EMS, BMS, and PCS control and communication architecture, and validate operating modes including peak shaving, load shifting, backup and islanding, generator paralleling, and charger buffering.

• Engineer electrical interfaces between the BESS platform and EV charging equipment, including load management and demand charge mitigation.

• Own design compliance to UL 9540 and UL 9540A, UL 1973, UL 1741, NFPA 855, NFPA 70 (NEC), NFPA 70E, and IEEE 1547; prepare and defend documentation for AHJ, fire marshal, listing body, and utility interconnection review.

• Address transport and mobility requirements for relocatable systems, including UN 38.3 and applicable DOT considerations for trailer-mounted units.

• Support the sales organization with load profile review, system sizing, feasibility assessment, proposals, and customer-facing technical presentations.

• Develop factory and site acceptance test procedures; support commissioning, startup, field troubleshooting, and root cause analysis.

• Partner with manufacturing and supply-chain on design for manufacturability, component qualification, and cost reduction.

Skills and Work Experience

• Bachelor’s degree in electrical engineering

• 5+ years of electrical design experience

• Command of low-voltage AC and DC distribution design: protection coordination, grounding and bonding, switchgear and panelboard specification, and conductor sizing.

• Applied working knowledge of NEC, NFPA 855, UL 9540, and IEEE 1547, demonstrated through designs approved by AHJs and utilities.

• Proficiency in electrical CAD (AutoCAD Electrical, EPLAN, or SolidWorks Electrical) and power systems analysis software (SKM, ETAP, or EasyPower).

• Experience carrying design from concept through certification, production release, and field commissioning.

• Ability to communicate technical content clearly to customers and internal commercial teams.

Preferred Qualifications

• Experience with containerized, skid-mounted, or trailer-mounted power equipment.

• Experience with DC fast charging and utility interconnection for high-demand charging sites.

• Familiarity with LFP chemistry, BMS architecture, thermal runaway mitigation, and fire suppression interfaces.

• Hands-on work experience in battery energy storage, power conversion, or microgrids

• Exposure to product certification workflows with UL, ETL, CSA, or equivalent NRTLs.