Principal Electrical Engineer, Power Systems (BESS/UPS)

ON.energy; Georgia; On-site; USD 170,000 - 260,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) with company match

Paid time off and company holidays

Job summary

ON.energy is seeking a Principal Electrical Engineer (Product/Hardware) to own the multi-megawatt BESS and 1500VDC topology architecture for hyperscale AI data centers. You will shape the technology roadmap, define modular power topologies, and ensure grid interconnection compliance and reliability.

You will lead vendor collaboration with Tier-1 OEMs, drive NRTL certification programs (UL 9540A), mentor engineers, and communicate risks and plans to leadership. Competitive benefits apply.

Qualifications

• Master's or Ph.D. in Electrical Engineering with a heavy specialization in Power Electronics or Utility Power Systems.
• Active PE License is highly preferred.
• 10 to 15+ years of definitive engineering leadership in utility-scale energy storage, high-voltage data center substations, or large-scale industrial grid tie-ins.
• Experience modeling battery sizing, degradation lifecycles, and validating EMS/SCADA plant controllers communication with hardware via Modbus/DNP3.
• Mastery of ETAP, SKM, PSCAD to oversee short-circuit, device coordination, harmonic distortion, and arc flash studies.
• Experience leading products through NRTL certification programs, especially UL 9540A.
• Proven ability to present complex technical concepts to C-suite and enterprise clients.

Responsibilities

• Architectural Ownership: Define standard product topologies for modular, utility-scale power platforms.
• Grid Interconnection & ISO Authority: SME on grid codes (ERCOT, PJM, CAISO); handle transient events and ride-through testing.
• Strategic Vendor & OEM Selection: Set procurement specs for Tier-1 battery and PCS OEMs.
• Ultimate Escalation Point: Lead RCA for power electronics failures and thermal issues in the field.
• Regulatory & Compliance Strategy: Map testing, listing, and certification roadmaps (UL/NRTL) for NPIs.
• Technical Mentorship: Grow engineering capability and mentor senior engineers across teams.

Skills

Leadership

Power Electronics

Grid Codes

OEM Partnerships

EMS/SCADA Integration

Simulation Tools

NRTL Certification

Executive Communication

Education

Master's or PhD in Electrical Engineering (Power Electronics/Utility Power Systems)

Professional Engineer (PE) License

Tools

ETAP

SKM

PSCAD

Modbus/DNP3

UL 9540A testing

Job description

ON.energy is seeking a Principal Electrical Engineer (Product/Hardware) to own the multi-megawatt BESS and 1500VDC topology architecture for hyperscale AI data centers. You will shape the technology roadmap, define modular power topologies, and ensure grid interconnection compliance and reliability.

You will lead vendor collaboration with Tier-1 OEMs, drive NRTL certification programs (UL 9540A), mentor engineers, and communicate risks and plans to leadership. Competitive benefits apply.