Senior Site Reliability Engineer, Application Reliability (Arlington, VA) - Secret Clearance Required - Relocation Provided

The role

You will improve application reliability, scalability, and security by working directly in the TypeScript codebase. You will design observability tools, own reliability targets, lead incident response, and automate operational tasks.

What you will do

• Work in the codebase to fix reliability and performance problems
• Partner with product engineers on design decisions and code reviews
• Design and run monitoring, logging, and alerting using Prometheus, Loki, Alloy, and Grafana
• Define and measure SLIs and SLOs
• Act as incident responder and incident commander
• Run blameless post-mortems
• Write software to automate repetitive operational work

Required qualifications

• Active Secret clearance
• 5+ years in software engineering, SRE, or a related role
• Real time spent writing and shipping application code
• Strong TypeScript or comparable modern language experience
• Solid grasp of the full SDLC
• Experience with incident response and root cause analysis
• Application development in TypeScript (Node and/or a modern front-end framework)
• CI/CD: building and maintaining pipelines (GitHub Actions, GitLab CI/CD, Jenkins)
• Testing and quality practices
• Comfort with at least one of Python, Go, or Bash
• Working knowledge of containers and Kubernetes
• Networking fundamentals and secure configuration basics

Nice to have

• Observability: Grafana stack, ELK, or Datadog
• Infrastructure as Code (Terraform, Ansible) and cloud experience (AWS or AWS GovCloud)
• Kubernetes cluster design and operations
• Designing meaningful SLIs/SLOs with error budgets for distributed systems
• GitOps practices and toolchains
• DoD environments and compliance frameworks (RMF, STIGs, ICD 503)
• Service mesh (Istio, Linkerd)
• On-prem virtualization (VMware, Proxmox, Nutanix, Hyper-V)
• Relevant certs (AWS DevOps Engineer, CKA/CKAD)

Benefits

• Relocation assistance

Before you apply

• Active Secret Clearance required
• Must be willing to relocate if not within commuting distance

About the company

Onebrief builds collaboration and AI-powered workflow software for military planning and operational coordination. Founded in 2019, it is a distributed team of builders backed by leading investors.