Hiring: Commissioning Engineer Company: ON.energy Location: United States Job Posted Time: 2026-09-10 13:17:34 Employment Type: Full-time / On-site Target Skills & Keywords : C, PLC, SCADA, Systems Integration, Transformers About the job Experience: •6 years of hands-on commissioning experience on BESS, solar + storage, or utility-scale renewable energy projects. Required Skills: •Execute system-level commissioning tests including functionality checks, network verification, and performance validation for data center, utility-scale, and C&I BESS projects. •Support FAT validation and site acceptance testing (SAT) in coordination with OEM and owner engineers. •Perform functional testing of inverters, PCS, BMS, EMS/SCADA, protection relays, and associated BOS equipment. •Identify, document, and resolve commissioning deficiencies; manage punch lists through to closeout. •Team & Project Leadership •Manage a subset of the on-site commissioning team (2–10 people), autonomously driving project initiatives as directed by the Senior Commissioning Engineer and management team. •Coordinate daily with EPC contractors, OEM field service engineers, and the ON.energy project and engineering teams to resolve technical challenges and keep milestones on track. •Partner cross-functionally with internal and external teams to resolve technical challenges as they arise in the field. Qualifications: •Full-Time, Hourly (non-exempt, eligible for OT) + per diem eligible while traveling + eligibility for annual short-term incentive bonus (performance based) •This is a high-travel, hands-on field role. You will spend the majority of your time on project sites across the U.S. and occasionally internationally. The ideal candidate is technically sharp, highly organized, and comfortable leading a small team in fast-paced construction environments. •3–6 years of hands-on commissioning experience on BESS, solar + storage, or utility-scale renewable energy projects. •Direct experience with battery storage systems including BMS, PCS/inverter, and EMS/SCADA commissioning. •Proficiency reading and interpreting electrical schematics, single-line diagrams, and P&IDs. •Solid functional working knowledge of protection relay testing, CT/PT verification, and DC/AC high-voltage systems. •Strong technical writing skills; ability to produce clear field reports and commissioning documents. •Valid driver’s license and US passport •Demonstrated capacity to travel >80% of the time. •Applied hands-on capability in one or more major BESS OEMs (Tesla Megapack, BYD, CATL, Sungrow, or similar). Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!