# Forward Deployed Site Reliability Engineer (TS/SCI Required)

**Company:** [Twenty](https://hotfix.jobs/companies/twenty)
**Location:** Arlington, VA
**Role:** DevOps / SRE
**Experience:** 5+ years
**Skills:** site reliability engineering, sli, slo, error budgets, Docker, docker compose, AWS, Linux, Terraform, Grafana, loki, mimir, Prometheus, Incident Response, python scripting
**Posted:** 2026-05-04

> Forward Deployed Site Reliability Engineer responsible for owning reliability, observability, incident response, and deployments of a mission-critical platform in a restricted, air-gapped government AWS environment. Requires 5+ years SRE/production ops experience, strong Linux/Docker/Terraform skills, LGTM stack proficiency, and active TS/SCI clearance.

## Job Description

## What You'll Do

### Reliability Engineering
- Define, track, and report on SLIs and SLOs for platform services running in the customer environment.
- Use error budgets to drive reliability conversations with the Arlington engineering team, translating operational data into prioritized engineering work.
- Identify and eliminate toil: build automation for repetitive operational tasks within the constraints of the secure environment.
- Conduct post-incident reviews, own root cause analysis, and drive durable fixes in partnership with the engineering team.

### Observability & Incident Response
- Own the observability posture for the on-site deployment — dashboards, alerting thresholds, and log pipelines using the LGTM stack (Grafana, Loki, Tempo, Mimir).
- Lead incident response on-site: triage, containment, coordination with Arlington, and customer communication.
- Maintain and continuously improve runbooks for operational procedures and emergency response protocols.
- Serve as the on-call anchor for the customer environment, with clear escalation paths to the engineering team.

### Deployment & Infrastructure Operations
- Work with the customer deployment team to get Twenty's platform stood up and updated within the restricted environment.
- Manage containerized services (Docker, Docker Compose) across deployment lifecycle — configuration, updates, rollbacks.
- Apply and validate Terraform-based infrastructure changes within the enclave, in coordination with the DSO engineer who owns IaC policy and guardrails.
- Perform capacity planning and flag scaling requirements to the Arlington team before they become incidents.

### Customer Liaison & Engineering Feedback
- Serve as the primary technical interface between the government customer and Twenty's engineering team — translating operational requirements, constraints, and issues in both directions.
- Represent the operational environment accurately in engineering discussions: what the team in Arlington can't see, you make visible.
- Partner with the DevSecOps engineer on compliance, logging, and audit requirements specific to the customer environment.
- Provide technical guidance and support to customer stakeholders on system behavior and troubleshooting procedures.

## Must Have
- 5+ years of professional experience in site reliability engineering, production operations, or a closely related infrastructure role.
- Proven experience defining and tracking SLIs, SLOs, and error budgets in a production environment.
- Hands-on experience with Docker, Docker Compose, and AWS (EC2, ECS, RDS, VPCs, security groups) in production deployments.
- Solid Linux/Unix systems administration skills; productive in constrained environments where GUI tooling may be limited or unavailable.
- Experience with Terraform for infrastructure provisioning and configuration, working within DSO-provided policy guardrails.
- Experience with the LGTM observability stack or equivalent (Grafana, Loki, Prometheus/Mimir, distributed tracing).
- Strong incident response experience: you've led responses, written post-mortems and runbooks, and shipped the preventive fix.
- Scripting proficiency in Python or Bash for operational automation, with familiarity in Go a plus; experience with PagerDuty or equivalent on-call tooling.
- Experience working in or directly supporting government or defense environments, including air-gapped or enclave deployments.

## Nice To Have
- Experience with NATS or similar pub/sub messaging systems in production.
- Background in cyber operations, intelligence systems, or signals environments.
- AWS certifications (Solutions Architect, SysOps, or DevOps Engineer).

## Security Requirements
- Must possess and be able to maintain a TS/SCI security clearance with appropriate polygraph.
- U.S. citizenship required.
- Willingness to travel occasionally for customer engagements and operational support.

## Benefits
- Health: Medical, dental, and vision plan options. Life / AD&D, disability coverage options.
- Family: Paid parental leave for eligible full-time employees. 12 weeks for birthing parents, 4 for non-birthing parents, 6 weeks for adoptive, foster, or intended parents through surrogacy.
- Vacation: Paid holidays and flexible PTO. Take what you need.
- Retirement: 401(k) with pre-tax and Roth options. HSA/FSA options, dependent care FSA.
- Benefits vary by location, role, and eligibility. Full plan details provided during the interview and offer process.

## Similar roles

- [Software Engineer, Compute Infrastructure](https://hotfix.jobs/jobs/e0a3b148-84c9-4527-a285-8b82c6473c63) - Glean - Mountain View, CA - $140k – $220k/yr
- [Software Engineer, Cloud Infrastructure](https://hotfix.jobs/jobs/14240d46-12c0-449f-a772-725a1df3ec0b) - Glean - Mountain View, CA - $200k – $270k/yr
- [Software Engineer, Cloud Deployment Infrastructure](https://hotfix.jobs/jobs/cb296000-b9c9-4d90-a725-05c15aff8b51) - Glean - San Francisco, CA - $200k – $270k/yr
- [Infrastructure engineer](https://hotfix.jobs/jobs/914e8c43-b09c-4819-96e1-24a8fb254fd7) - Writer - New York, NY - $140k – $274k/yr
- [Site Reliability Engineer](https://hotfix.jobs/jobs/f1fb6109-0b83-40f3-8972-d85f169649eb) - ConductorOne - Portland, ME - $180k – $250k/yr

**Apply:** https://hotfix.jobs/jobs/8ee25ad7-3721-4ba2-af40-60e644711f8a
**Canonical:** https://hotfix.jobs/jobs/8ee25ad7-3721-4ba2-af40-60e644711f8a