Senior System Specialist

Simplesense•Denver, CO

21h•Hybrid

About The Position

Simplesense keeps military installations mission-ready. The infrastructure their operations depend on — power, water, fuel, facilities, security, and communications — runs continuously, often under strain. When it fails without warning, mission readiness is at risk, and the people who run these installations need to see what’s happening in time to act. That’s the foundation of Continuous Mission Assurance. We securely integrate Operational Technology and Control Systems (OT/CS) from the building edge to the cloud, applying Zero Trust principles to protect critical infrastructure from cyber and physical threats. By unlocking previously siloed data, we put timely awareness in front of the decision-makers who need it. As prime on the Air Force’s Installation Resilience Operations Command and Control (IROC) program, we hold a continuous Authority to Operate (ATO) and have proven the capability at scale at Tyndall Air Force Base. That work is now expanding across the Air Force, Space Force, and Army. Our team pairs over a century of boots-on-the-ground mission experience with deep technical expertise across DevSecOps, cybersecurity, and cloud infrastructure. We engineer resilient infrastructure — the software, integration, and operational backbone behind it — for the operators who depend on it in the field. Persistent resilience, built for the mission.

Requirements

7+ years of experience in a NOC, IT Ops, or Tier 2/3 Systems Support role, with a proven track record of handling complex escalations.
Practical experience troubleshooting AWS network topologies, including VPCs, Security Groups, NACLs, Route Tables, and hybrid connectivity (VPN/Direct Connect).
Hands-on experience configuring and tuning alerts, dashboards, and log queries in Splunk and DataDog.
Strong practical experience navigating Cisco switch configurations to troubleshoot routing.
High comfort level working within a Linux command-line environment to navigate file systems, parse system logs, and execute advanced troubleshooting scripts.
Must be a U.S. Citizen and capable of obtaining a DoD NIPR network account and Common Access Card (CAC).
Must have, or be able to obtain, a DoD Secret Clearance.

Nice To Haves

Strongly prefer candidates residing in the Denver, CO metro area.
Prior experience working within DoD, Air Force, Space Force, or fast-paced Federal contractor/dual-use startup environments.
CompTIA Security+, CCNA, or advanced Linux certifications.
Experience supporting OT/ICS environments or working within DoD/Air Force spaces.
A strong track record of mentoring junior staff or acting as a Shift Lead in a NOC environment.

Responsibilities

Act as the technical backstop for the NOC, identifying the root cause of system failures, connectivity issues, and cloud application problems.
Take charge as the Incident Lead during critical outages to ensure swift resolution and mission continuity.
Actively monitor and troubleshoot our cloud networking, EC2 instance health, resource constraints, and resolve OS-level issues within virtualized environments.
Seamlessly cross the boundary between physical and cloud networks. Navigate Cisco switch configurations and AWS VPCs to trace traffic patterns, parse logs, and isolate the true root cause of platform degradations.
Build and tune observability dashboards and alerts across platforms like Splunk, DataDog. Filter out noise to ensure the NOC is reacting to high-fidelity, actionable signals.
Continuously analyze ticket trends to identify gaps in documentation. Write, test, and publish operational runbooks used by the whole team.
Act as the team lead for the System Specialists. Review workflows, escalations, provide technical feedback, and elevate the baseline skills of the entire support organization.