ON.energy is setting the standard for large load interconnection. ON’s patented AI UPS™ is a medium-voltage UPS that serves as a firewall, protecting the data center from the grid, and the grid from the data center. With multiple gigawatts currently under construction, we are enabling grid-safe data centers.

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) with business users; document test scripts, results, defects, and sign-off
- Log and track defects found during testing through resolution (using tools like JIRA, ServiceNow, Azure DevOps)
- Validate data migration accuracy during ERP upgrades or system transitions
- Act as a lia

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