Product Quality Engineer

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future. The Product Quality Engineer (PQE) supports the Product Quality Manager by executing project-level quality assurance activities for utility-scale BESS projects, with a strong emphasis on Factory Acceptance Testing (FAT) and supplier quality oversight. This role is a hands-on individual contributor responsible for planning, performing, witnessing, and monitoring FATs at OEM and supplier facilities to verify that critical BESS equipment meets contractual, technical, and quality requirements prior to shipment. In addition to FAT execution, the PQE performs field inspections, monitors equipment deliveries and installation activities, identifies and documents non- conformances, and supports corrective action resolution during construction, installation, and commissioning phases. The PQE plays a critical role in early defect detection and risk mitigation by validating product quality at the factory level and ensuring civil, mechanical, and electrical installations meet On.Energy, contractual, and industry standards before mechanical completion and commissioning. Key Responsibilities • Plan, perform, witness, and monitor Factory Acceptance Tests (FATs) and in-process inspections at OEM and supplier facilities for BESS equipment including batteries, PCS/inverters, transformers, switchgear, EMS, and auxiliary systems • Review and approve FAT procedures, test scripts, and acceptance criteria in alignment with contractual and technical requirements • Identify, document, and track FAT-related non-conformances and deviations; support Root Cause Analysis (RCA) and corrective/preventive actions prior to shipment • Coordinate and oversee third-party inspectors at vendor facilities when required • Perform on-site quality inspections for BESS projects during construction, installation, and commissioning • Support receiving inspections, delivery verification, and installation surveillance • Verify compliance with drawings, specifications, Inspection & Test Plans (ITPs), and Project Quality Management Plans • Identify, document, and manage Non-Conformance Reports (NCRs) in accordance with On.Energy procedures • Verify effectiveness of corrective actions prior to mechanical completion and handover • Complete inspection reports, FAT reports, checklists, and quality documentation accurately and on time • Maintain project quality records and digital inspection platforms • Provide timely quality status updates, metrics, and supplier performance feedback • Interface directly with EPC contractors, OEMs, and suppliers on quality matters • Execute project quality processes aligned with ISO 9001 and PDCA methodology • Promote a strong quality and safety culture at all times and work locations Qualifications Required • Bachelor’s degree in Electrical, Industrial, Mechanical, or Quality Engineering (or related technical field) • 5+ years of experience in quality engineering within the energy, power, or renewable industries • Direct experience performing or leading Factory Acceptance Tests (FATs) for electrical or power equipment • Hands-on experience with electrical power systems used in BESS projects • Working knowledge of ISO 9001, NCR management, RCA, and CAPA processes • Ability to read and interpret electrical drawings, civil plans, and technical specifications • Willingness to travel up to 75% to domestic and international supplier and project sites • Strong communication and technical documentation skills Preferred Qualifications • Bachelor’s degree in Electrical Engineering • Experience with Tier 1 BESS OEMs and EPC contractors • Familiarity with UL 9540 / 9540A, UL 1973, IEEE 1547, NEC, IEC standards • Experience using digital inspection platforms and NCR tracking tools • Electrical certifications or commissioning experience For US-based roles - What you’ll get: Competitive salary + annual performance-based bonus eligibility Medical, dental, and vision insurance 401(k) with company match Paid time off and company holidays For Mexico-based roles - What you’ll get: Competitive salary + annual performance bonus eligibility Christmas Bonus (Aguinaldo): 30 days Major medical expenses and life insurance Paid time off and holidays (per local policy) For all roles: Professional development and growth opportunities Opportunity to grow with a mission-driven team shaping the future of clean energy Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation. Accommodations: If you need an accommodation during the application process, email [email protected] Benefits vary by role and location and are subject to change.

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