ON Energy Storage

End-to-end battery storage development with AI

Quality Assurance Engineer - Manual Testing

Manual & Functional QAConfirmed live in the last 24 hours

Full-timeMexico City, CDMX, Mexico

About the Job

Requirements

Experience working with ERP systems such as SAP, Oracle, Microsoft Dynamics, or similar systems.
Strong background in requirements gathering and business analysis.
Hands-on experience with ERP integration, functional, and regression testing.
Experience coordinating and executing User Acceptance Testing with business stakeholders.
Working knowledge of system administration, including user accounts, permissions, and basic troubleshooting.
Experience supporting a Service Desk or helpdesk environment using ticketing tools such as ServiceNow, Jira Service Management, or Zendesk.
Strong communication skills and comfort working directly with end users and stakeholders.
Good documentation skills, including requirements documents, test cases, test scripts, and process maps.

Responsibilities

Gather and document business requirements from stakeholders and end users.
Analyze business processes to identify gaps, inefficiencies, and improvement opportunities.
Support ERP integration testing by validating data flows, interfaces, and functionality across integrated ERP modules and systems.
Design and execute functional test cases for ERP modules, including Finance, HR, Inventory, and Procurement, based on business requirements.
Perform regression testing after ERP patches, upgrades, or configuration changes to ensure existing functionality is unaffected.
Test interfaces and integrations between ERP and connected third-party systems by validating data mapping, transformation, and synchronization accuracy.
Plan and execute User Acceptance Testing with business users; document test scripts, results, defects, and sign-off.
Log and track defects found during testing through resolution using tools such as JIRA, ServiceNow, or Azure DevOps.
Validate data migration accuracy during ERP upgrades or system transitions.
Liaise between business users, technical teams, and ERP vendors to clarify requirements and resolve issues.
Provide Service Desk support by triaging, logging, and resolving tickets related to ERP systems and general IT issues.
Perform basic system administration tasks, including user access, configuration checks, and system health monitoring, as needed.
Train end users on new ERP functionality and processes as needed.
Escalate unresolved technical issues to appropriate teams and track them through to closure.

ON.energyis 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 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)

Note: This position may include 20% annual business travel

#LI-AD1

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

Agency Notice:ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.

About the Company

ON Energy Storage

End-to-end battery storage development with AI

On.Energy Storage develops and manages end-to-end energy storage projects, focusing on grid-scale BESS and C&I peak-shaving for utilities, airports, and commercial & industrial customers. Its turnkey approach covers planning, construction, operation, and in-house financing, serving as a single point of responsibility for clients. The company uses On.Command, an AI-powered software for design, forecasting, control, and dispatch, with in-house analytics for real-time monitoring and optimization. It uses a technology-agnostic approach, applying the latest battery and power electronics to enable grid services like frequency regulation, energy arbitrage, and renewable integration, with a goal to scale deployments across North America and Latin America.

Company size: 201-500
Company stage: Debt Financing
Total funding: $262.6M
Headquarters: Miami, FL
Founded: 2016

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