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 ResponsibilitiesPlan, 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 systemsReview and approve FAT procedures, test scripts, and acceptance criteria in alignment with contractual and technical requirementsIdentify, document, and track FAT-related non-conformances and deviations; support Root Cause Analysis (RCA) and corrective/preventive actions prior to shipmentCoordinate and oversee third-party inspectors at vendor facilities when requiredPerform on-site quality inspections for BESS projects during construction, installation, and commissioningSupport receiving inspections, delivery verification, and installation surveillanceVerify compliance with drawings, specifications, Inspection & Test Plans (ITPs), and Project Quality Management PlansIdentify, document, and manage Non-Conformance Reports (NCRs) in accordance with On.Energy proceduresVerify effectiveness of corrective actions prior to mechanical completion and handoverComplete inspection reports, FAT reports, checklists, and quality documentation accurately and on timeMaintain project quality records and digital inspection platformsProvide timely quality status updates, metrics, and supplier performance feedbackInterface directly with EPC contractors, OEMs, and suppliers on quality mattersExecute project quality processes aligned with ISO 9001 and PDCA methodologyPromote a strong quality and safety culture at all times and work locationsQualificationsRequiredBachelor'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 industriesDirect experience performing or leading Factory Acceptance Tests (FATs) for electrical or power equipmentHands-on experience with electrical power systems used in BESS projectsWorking knowledge of ISO 9001, NCR management, RCA, and CAPA processesAbility to read and interpret electrical drawings, civil plans, and technical specificationsWillingness to travel up to 75% to domestic and international supplier and project sitesStrong communication and technical documentation skillsPreferred QualificationsBachelor's degree in Electrical EngineeringExperience with Tier 1 BESS OEMs and EPC contractorsFamiliarity with UL 9540 / 9540A, UL 1973, IEEE 1547, NEC, IEC standardsExperience using digital inspection platforms and NCR tracking toolsElectrical certifications or commissioning experienceFor US-based roles - What you'll get:Competitive salary + annual performance-based bonus eligibilityMedical, dental, and vision insurance401(k) with company matchPaid time off and company holidaysFor Mexico-based roles - What you'll get:Competitive salary + annual performance bonus eligibilityChristmas Bonus (Aguinaldo): 30 daysMajor medical expenses and life insurancePaid time off and holidays (per local policy)For all roles:Professional development and growth opportunitiesOpportunity to grow with a mission-driven team shaping the future of clean energyEqual 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 recruitment@onenergystorage.comBenefits vary by role and location and are subject to change.