Quality Assurance Engineer - Manual Testing

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.

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 ideal 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 liaison between business users, technical teams, and ERP vendors to clarify requirements and resolve issues

Provide Service Desk support — triage, log, and resolve tickets related to ERP systems and general IT issues

Perform basic system administration tasks (user access, configuration checks, system health monitoring) as needed

Train end users on new ERP functionality/processes as needed

Escalate unresolved technical issues to appropriate teams and track through to closure

Required Skills & Qualifications:

Experience working with ERP systems (e.g., SAP, Oracle, Microsoft Dynamics, or similar)

Strong background in requirements gathering and business analysis

Hands-on experience with ERP integration, functional, and regression testing

Experience coordinating and executing UAT with business stakeholders

Working knowledge of system administration (user accounts, permissions, basic troubleshooting)

Experience supporting a Service Desk/helpdesk environment (ticketing tools like ServiceNow, Jira Service Management, Zendesk)

Strong communication skills — comfortable working directly with end users and stakeholders

Good documentation skills (requirements docs, test cases, test scripts, process maps)

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 recruitment@onenergystorage.com

Benefits vary by role and location and are subject to change.