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The Senior Quality Assurance Engineer designs scalable automation frameworks, validates cloud-native applications, and ensures quality and security of systems interacting with Operational Technology devices.
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
Bitbucket
Cloud (Aws
Gcp)
Git
Matlab
Python
Simulink
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