Site Reliability Engineer

Waltham · Waltham, MA (WMA-01) · USD 112,000-149,000 · 3+ years experience · Full-time · Remote · Posted Sep 23, 2026

At a glance

The Site Reliability Engineer will serve as the frontline for maintaining fielded imaging systems, acting as the primary point of contact for field personnel and customer-support escalations.
This role focuses on diagnosing and resolving issues across the full stack of deployed hardware and software systems, rather than traditional product development or cloud-based SRE work.
The position involves shaping reliability and support operations for a small, high-trust team while working directly with the lead engineer.

Own the health and uptime of deployed imaging systems by triaging, diagnosing, and driving resolution for issues.
Serve as the first and second line of response for support channels and customer-support pipelines.
Build and maintain runbooks, diagnostics, and self-service tooling to reduce repeat problems.
Reproduce, document, and hand off genuine software defects to Mission Software Engineers.
Provide feedback to product teams to improve system observability, upgrade safety, and failure handling.
Travel approximately 15% of the time for field support and deployment windows.

3+ years of experience in SRE, DevOps, field/systems engineering, or production support of deployed hardware/software systems.
Strong Linux fundamentals, including troubleshooting networking issues such as IP, routing, VPNs, and connectivity in constrained environments.
Ability to diagnose and resolve issues across system boundaries without full visibility into every component.
Comfortable owning a structured on-call rotation, including scheduled after-hours and weekend coverage.
Strong written and verbal communication skills for remote troubleshooting with non-technical operators.
Eligibility to obtain and maintain a U.S. Secret clearance.

Experience supporting fielded or deployed systems.
Experience with fielded hardware or sensor systems such as EO/IR or optical systems.
Familiarity with sensor calibration.
Scripting skills for diagnostics and automation using Python, Bash, or similar.
Familiarity with Nix or NixOS.
Familiarity with systemd service management and observability practices on Linux.
Familiarity with incident tooling such as PagerDuty.

Travel expected approximately 15% of the time for field support and deployment windows.