Fielded Site Reliability Engineer

Waltham · Waltham, MA (WMA-01) · USD 112,000-149,000 · 3+ years experience · Full-time · Remote · Posted Sep 28, 2026

At a glance

You are the frontline for keeping fielded imaging systems alive, acting as the person field personnel and customer-support escalations turn to when a deployed system isn't behaving.
This role is the second SRE on a small, high-trust team working directly with the lead, with real room to shape how Imaging reliability and support operate as the team scales.

Own fielded system reliability by managing the health and uptime of deployed imaging systems.
Triage, diagnose, and drive resolution for issues across the network, calibration, upgrades, or sensor hardware.
Run point on escalations 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 and shrink support load.
Hold the boundary with engineering by owning everything short of a code fix, including reproducing and documenting software defects.
Feed reliability back into the product by turning field lessons into signals for better observability, safer upgrades, and graceful failure.

3+ years in SRE, DevOps, field/systems engineering, or production support of deployed hardware/software systems
Strong Linux fundamentals, including comfort troubleshooting real networking issues like IP, routing, VPNs, and connectivity
Demonstrated ability to diagnose and resolve issues across system boundaries without always having 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, including the ability to run remote troubleshooting sessions with non-technical operators
Eligibility to obtain and maintain a U.S. Secret clearance

Experience supporting fielded or deployed systems, not just development environments
Experience with fielded hardware or sensor systems (EO/IR, optical, or similar), including familiarity with sensor calibration
Scripting for diagnostics and automation (Python, Bash, or similar)
Familiarity with Nix or NixOS
Familiarity with systemd service management and observability practices on Linux
Familiarity with incident tooling (PagerDuty or equivalent)

Competitive equity grants included in the majority of full-time offers
Top-tier benefits for full-time employees supporting health, recovery, and other needs

Travel expected approximately 20% of the time for field support and deployment windows.