Senior DevOps Engineer

• 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.
• Develop 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.

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, enabling portable nuclear power that can replace diesel generators and provide critical power for hospitals, data centers, remote sites, and military bases.

• 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.
• Expert-level proficiency in programming languages such as Python, Golang, Rust, C#, or C/C++.
• 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.
• Strong coding skills, developing automation and monitoring tools, internal applications, and infrastructure software.

Total compensation package includes base salary, substantial equity grants, and comprehensive benefits.

• Stock: Substantial incentive stock plan for all full-time employees.
• Medical: 100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
• One Medical: Sponsored memberships for eligible employees and their dependents.
• Vision: 100% premium coverage for top tier plan + 50% for dependents.
• Dental: 100% premium coverage for top tier plan (including orthodontia) + 50% for dependents.
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events, happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.

Radiant is building the world's first mass-produced, portable nuclear microreactors. Their first reactor, Kaleidos, is a 1-megawatt failsafe microreactor that can be transported anywhere power is needed and run for up to five years without refueling, providing clean energy to replace diesel generators.