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 Senior Quality Assurance Engineer is responsible for designing scalable automation framework, validate cloud-native applications, and ensure quality, reliability, security and scalability of system interacting with Operational Technology (OT) devices.
Required Experience & Skills
- The candidate will have B.S. degree in Software Engineering, Computer Science, Quality Engineering, or related technical field.
- 7+ years of experience in test automation using Python, with exposure to modern test frameworks and CI/CD integration.
- 5+ years of demonstrated capability to integrate and manage test automation frameworks with Cloud (AWS, GCP) services.
- Ability to identify and assess cybersecurity risks and vulnerabilities within OT-integrated applications during the QA and testing lifecycle.
- Experience validating system compliance with relevant cybersecurity standards and frameworks (e.g., NIST, IEC 62443, or similar OT security guidelines).
- Experience using GitHub/Bitbucket.
- Strong oral and written communication skills, with the ability to work independently with minimal day-to-day guidance while effectively achieving targeted goals.
Preferred Experience
- Experience with Industrial Protocols, Modbus TCP, OPC UA, MQTT, BACnet.
- Experience in high-performing programing such as Matlab, Simulink.
- Experience with SCADA systems is a plus.
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 [email protected]
- Benefits vary by role and location and are subject to change.
Top Skills
What We Do
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. Its track record spans industrial, manufacturing, infrastructure, transportation, and grid-scale storage. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience.
