onenergy · Houston, Texas, United States
Skills: Python, SQL, AWS, Docker, CI/CD
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 looking for A Senior RHEL Infrastructure QA Engineer to validate the reliability, performance, and deployment integrity of our server and application infrastructure, including systems running on Red Hat Enterprise Linux (RHEL) and containerized workloads. This role sits at the intersection of QA and systems/infrastructure engineering — testing not just application behavior, but the platforms and deployment pipelines that behavior runs on, including performance under load, correct behavior across upgrades, and validation of containerized and orchestrated deployments. KEY RESPONSIBILITIES Design and execute test plans for infrastructure changes, including OS-level updates, container deployments, and platform upgrades. Validate server sizing and performance under load, including load, stress, and soak testing of production-bound systems. Test and verify containerized application deployments for correctness, resource behavior, and rollback safety. Build and maintain test automation and monitoring scripts to validate infrastructure health and deployment outcomes. Collaborate with systems, DevOps, and application engineering teams to define acceptance criteria for infrastructure changes. Document test results, defects, and qualification outcomes clearly for technical and non-technical stakeholders. KEY REQUIREMENTS 5+ Years of hands-on Linux administration experience, specifically with Red Hat Enterprise Linux (RHEL) — system administration, package management, service management (systemd), and shell scripting. Experience testing or validating containerized deployments — building, running, and troubleshooting Docker containers, and working knowledge…
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