# Senior Site Reliability Engineer

**Company:** [Onebrief](https://hotfix.jobs/companies/onebrief)
**Location:** Arlington, VA
**Role:** DevOps / SRE
**Salary:** $180k – $220k/yr
**Experience:** 5+ years
**Skills:** TypeScript, Kubernetes, Prometheus, Grafana, loki, GitHub Actions, Terraform, Python, Go, Bash, AWS, CI/CD, sli, slo
**Posted:** 2026-07-28

> Join Onebrief's Infrastructure & Security team as an SRE focused on improving application reliability directly in the TypeScript codebase for mission-critical military planning software. Requires active Secret clearance, 5+ years shipping application code, strong observability and incident response skills, and willingness to work onsite in Arlington, VA.

## Job Description

## What You'll Do

- Improve the application by working directly in the codebase (primarily TypeScript) to fix reliability and performance problems at the source. Partner with product engineers on design decisions and review code with reliability and security in mind.
- Build observability that developers actually use: Design and run monitoring, logging, and alerting (Prometheus, Loki, Alloy, Grafana). Create alerts and dashboards tied to real application behavior.
- Own reliability targets: Define and measure SLIs and SLOs, wire up alerting, and prove what "reliable" means for the systems with data.
- Lead incident response: Act as incident responder and commander when needed. Run blameless post-mortems (AARs) that identify root causes and turn them into code or process fixes.
- Automate away toil: Identify repetitive operational work and write software to eliminate it. Share solutions with other teams, including those in air-gapped environments.

## Requirements

- Active Secret clearance
- 5+ years in software engineering, SRE, or related role, with real time spent writing and shipping application code
- Strong TypeScript (or comparable modern language experience with willingness to work primarily in TypeScript)
- Solid grasp of the full SDLC: design, code review, testing, release, and how reliability fits into each stage
- Experience with incident response, root cause analysis, and turning findings into lasting fixes
- Collaborator who works well across product, platform, and DevOps teams and shares context openly

## Technical Expertise

- 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 as part of the delivery process
- Comfort with at least one of Python, Go, or Bash for tooling and automation
- Working knowledge of containers and Kubernetes (enough to debug and deploy)
- Networking fundamentals and secure configuration basics

## Nice-to-Haves

- 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)

## Similar roles

- [AI Enablement Engineer](https://hotfix.jobs/jobs/307d7d5b-7858-4c37-bce0-624c01b780ac) - Sprinter Health - San Francisco, CA - $180k – $260k/yr
- [Senior Software Engineer, Infrastructure](https://hotfix.jobs/jobs/18586bd8-0027-499d-963f-3955e6192dc7) - AcuityMD - Boston, MA - $180k – $250k/yr
- [Sr. Software Engineer, DevOps](https://hotfix.jobs/jobs/d47f464a-96d3-4200-8c63-1895f6c774ab) - AKASA - South San Francisco, CA - $180k – $220k/yr
- [Senior DevEx Engineer](https://hotfix.jobs/jobs/adfaef73-b158-43f2-8712-9de381fa989a) - Replit - Foster City, CA - $180k – $250k/yr
- [Network Development Engineer, ML Infrastructure (High-Speed Interconnects)](https://hotfix.jobs/jobs/fe0fdc46-d61c-4f7a-9f05-45781e0a9402) - xAI - Palo Alto, CA - $180k – $440k/yr

**Apply:** https://hotfix.jobs/jobs/8286ca66-683f-400d-8e9d-e854de564b00
**Canonical:** https://hotfix.jobs/jobs/8286ca66-683f-400d-8e9d-e854de564b00