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ON.energy · 14 hours ago

Sr Product Engineer BESS

United States

Full-time

Remote

Senior Level

6+ years exp

ON.energy is building the power infrastructure that makes the AI era possible. The Sr Product Engineer BESS will lead the technical design of battery storage projects, manage vendor relationships, and provide engineering support throughout project execution.

AnalyticsEnergyEnergy ManagementEnergy StorageRenewable EnergySoftware

Responsibilities

Lead the technical design of utility-scale and C&I (Commercial & Industrial) battery storage projects for data centers. This includes selecting battery chemistry, power conversion systems (PCS), and thermal management strategies

Review Single Line Diagrams (SLDs), Three-Line Diagrams, and General Arrangement (GA) drawings, analysis from vendors, and create technical specifications for products Vendor Management: Interface with global BESS and related integrators to evaluate technical bids, perform due diligence on hardware, and manage FAT (Factory Acceptance Testing)

Perform performance modelling and degradation analysis to ensure the long-term bankability and health of the battery assets

Provide engineering support during the construction and commissioning phases, troubleshooting field issues and ensuring "as-built" accuracy to internal and external teams

Qualification

Energy Storage (BESS)Electrical EngineeringDC/AC power systemsBattery Management SystemsCAD software (AutoCAD)Power system modelling toolsHigh-voltage substation designVendor ManagementProject ExecutionModelling & SimulationTechnical Documentation