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Senior Classified Systems Administrator

Cambridge, MA, US💼 Full-time💰 $95,000–$95,000🗓 2026-09-22 → 2026-09-26

Core

Senior Systems Administrator managing classified IT infrastructure, network security, and system lifecycle for national defense and R&D solutions.

Role type

Senior IC systems administrator (classified environments)

Builds

Secure IT systems, network configurations, and classified data environments

Domain

Defense & Aerospace / Cybersecurity

Deliverable

production ML models | infrastructure

Required skills

Systems administration, Network administration, Security architecture, Windows Server management, Patch management, Access control, Incident response, Documentation management, Project planning

Preferred skills

Mentoring team members, Leading IT projects, Risk coordination

Technologies

Active Directory, LDAP, VMware, Veeam, Nessus, Splunk, Windows 10, Windows Server 2016, Windows Server 2019

Responsibilities

Install, configure, and maintain networks and firewalls; Conduct security reviews and technical inspections; Develop project plans and architecture diagrams; Provide technical support and resolve moderately complex issues; Perform software patching and lifecycle management; Coordinate with Information Assurance for system accreditation; Assist and mentor team members.

Seniority

Senior, hands-on IC with leadership responsibilities

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