Security Infrastructure Site Reliability Engineer OOJ

Job Description

As a Security Infrastructure Site Reliability Engineer (SRE), you'll focus on maintaining the stability, security, and performance of our infrastructure, applying software engineering principles to IT operations, and collaborating with development teams to ensure secure and reliable deployments.

Security Infrastructure & Tools Team – Washington, DC | Secret Security Clearance Required – Own, Build, and Secure Mission-Critical Infrastructure

This is not a traditional SRE role: we are looking for an elite, hands‑on systems engineer who thrives in high‑stakes, complex environments. The role requires deep expertise in Kubernetes, Linux, cloud infrastructure, and automation, and involves owning, building, and securing massive‑scale infrastructure.

• Build Kubernetes from the ground up, operating large‑scale clusters across cloud and air‑gapped environments.
• Engineer and automate enterprise cloud infrastructure, designing resilient, high‑performance security platforms.
• Write and optimize Linux scripts, Python automation, and infrastructure as code (IaC) to streamline operations.
• Develop and manage massive security data pipelines, handling terabytes of real‑time telemetry.
• Dig into system internals, troubleshoot performance at the OS level, and optimize distributed security systems.
• Work independently at a high level, making critical architectural decisions while staying hands‑on with implementation.

• 5+ years of hardcore systems engineering experience, with expertise in Kubernetes, cloud infrastructure (AWS, GCP, Azure), and automation.
• Fluency in Linux, Python, and shell scripting. Comfortable writing code that controls, monitors, and secures enterprise infrastructure.
• Deep networking and security knowledge, understanding system internals, monitoring, and threat response.
• A self‑directed, execution‑driven mindset, capable of operating as a high‑value independent contributor.
• Active U.S. security clearance (Secret or higher).

• Total ownership: design, build, and operate security infrastructure at global scale.
• Deep technical work: get your hands into system internals, Kubernetes internals, and large‑scale cloud environments.
• Mission‑critical impact: defend against nation‑state threats in an elite engineering environment.

• Small Team, Independence, Autonomy, Challenging Technical Stack, Team of Brilliant Engineers