ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience.
Role Summary
We're seeking a Quality Assurance Engineer with Manual Testing experience, to be based in Mexico, supporting our IT division's ERP systems and business applications. This role blends requirements gathering, business process analysis, and hands-on functional, regression, and integration testing for ERP modules including Finance, HR, Inventory, and Procurement. The adecuado candidate will partner closely with business stakeholders, technical teams, and ERP vendors,



while leading UAT efforts, validating data migrations, and providing Service Desk support to keep our ERP environment reliable and running smoothly.
Key Responsibilities
Gather and document business requirements from stakeholders and end users
Conduct business process analysis to identify gaps, inefficiencies, and improvement opportunities
Support ERP integration testing — validate data flows, interfaces, and functionality across integrated ERP modules/systems
Design and execute functional test cases for ERP modules (e.g., Finance, HR, Inventory, Procurement) based on business requirements
Perform regression testing after ERP patches, upgrades, or configuration changes to ensure existing functionality is unaffected
Conduct interface/integration testing between ERP and connected third-party systems (validate data mapping, transformation, and sync accuracy)
Plan and execute User Acceptance Testing (UAT) wit

📌 Quality Assurance Engineer (Ciudad de México)
🏢 On.Energy
📍 Ciudad de México