Principal DevOps Engineer

Technical Principal DevOps Engineer

Radiant is seeking a driven Technical Principal DevOps Engineer to own software infrastructure, deployment, and automation projects. In this role, you will collaborate across the entire org and work closely with the software team to design scalable, secure, and resilient DevOps practices, tools, and systems. As a technical lead, you will mentor engineers, define team scope, and shape individual responsibilities to build and grow a high-performing DevOps function. The infrastructure you manage, pipelines you build, and analysis tools you create and maintain will be used to design, run, and analyze the first new reactor design in 50 years. You will have the opportunity to build a strong foundation for production.

Responsibilities & Duties:

• Lead a team of DevOps engineers and establish responsibilities, project scope, and technical mentorship.
• Architect, implement, and maintain infrastructure across AWS and on-premises Linux environments, ensuring high availability, security, and performance for mission-critical systems.
• Own and optimize Kubernetes and Docker container orchestration to run simulations, internal tools, and engineering applications at scale.
• Design, build, and optimize CI/CD pipelines using Git, Argo, and other automation tools to enable rapid, reliable software delivery across engineering teams.
• Architect internal tools supporting build systems, testing frameworks, deployment automation, and developer environments.
• Develop computational analysis tools for the digital twin platform, implementing automated profiling and monitoring to optimize HPC workloads for reactor modeling.
• Implement and manage infrastructure-as-code practices using Terraform or similar tools to ensure reproducible, version-controlled infrastructure deployments.
• Establish and maintain observability, monitoring, and logging infrastructure to ensure system reliability and enable rapid incident response.
• Design and maintain high-performance networking infrastructure for distributed simulation systems, optimizing data transfer between HPC clusters.
• Work across engineering teams to understand infrastructure requirements and eliminate bottlenecks that impact development velocity.

Required Qualifications & Skills:

• Bachelor's degree in computer science, engineering, or a related technical field.
• 8+ years of professional experience in DevOps, Site Reliability, Infrastructure, or Platform Engineering.
• 2+ years in a leadership role in either a people management or technical lead scope. Mentoring engineers and establishing their scope and responsibilities.
• Expert-level proficiency in programming languages such as Python, Golang, Rust, C#, or C/C++.
• Strong coding skills, developing automation and monitoring tools, internal applications, and infrastructure software.
• Expert-level proficiency with Kubernetes and Docker for orchestration and deployment.
• Experience with Git and CI/CD tools (Argo, GitLab CI, Jenkins, GitHub Actions), designing automated build, test, and deployment pipelines.

Desired Qualifications & Skills:

• 4+ years in a leadership role in either a people management or technical lead scope. Mentoring engineers and establishing their scope and responsibilities.
• Experience deploying and maintaining cloud-native applications in production, including hands-on work with microservices, architectures, service mesh technologies, and distributed systems.
• Familiarity with infrastructure monitoring and observability tools like Datadog, Grafana, InfluxDB, Prometheus, Nagios, etc.
• Working experience in secrets management, Identity and access management, network security, vulnerability scanning, etc.
• Experience in highly regulated industries (aerospace, defense, automotive, nuclear, or medical devices).
• Experience working cross-functionally with engineering teams in different disciplines such as mechanical, electrical, materials, and nuclear.

Additional Requirements:

• Must be willing to work extended hours and weekends as necessary to accomplish our mission.
• Must work 100% onsite at El Segundo HQ.