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AMERICAN SYSTEMS · 1 month ago

Senior Network and Computer Systems Administrator

US-VA-Arlington

Full-time

Onsite

Senior Level

7+ years exp

AMERICAN SYSTEMS is seeking a Senior Network and Computer Systems Administrator to join the NISSC3 Mission at The Pentagon. This role involves providing advanced technical leadership and expertise, ensuring reliable system administration and support while safeguarding national security.

GovernmentInformation Technology

Comp. & Benefits

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Provides advanced technical leadership and expertise for the NMCC by managing daily onsite 8x5 support and 24/7/365 on-call system administration and user support

Oversees and ensures reliable delivery of:

Management and reporting

System administration

Vulnerability management

O-Level maintenance

Test support tasks in strict adherence to technical manuals and government security protocols

Conducts remote troubleshooting and support for Strategic Presidential Decision Support Modules (PDS-Ms) at geographically dispersed locations, ensuring sustained system operability even when the on-site individual is unavailable

Analyzes operational trends, incident data, and maintenance activities to drive service improvements

Prepares and validates all contractual deliverables—including role continuity binders, performance metrics inputs, incident reports, and technical documentation

Establishes, documents, and communicates best practices and lessons learned for all mission assurance activities at NMCC and associated remote support sites

Qualification

System AdministrationVulnerability ManagementInformation Assurance CertificationRemote Technical SupportTechnical DocumentationProcess ImprovementCommunication Skills

Required

Bachelor's degree or equivalent DoD/military training

7–10 years of experience

Ability to work with highly sensitive and classified DoD systems and information

Collect, analyze, and report surveillance and performance metrics

Prepare meeting agendas, materials, minutes, and monthly task reports

Maintain documentation for O&M roles, continuity binders, and procedures

Document issues and propose/support corrective actions and system changes (including Deficiency Reports, Artifact Defects, and AFTO Form 22 recommendations)

Manage and track System Administration/User Support actions via Incident Reports (IR)

Conduct standup meetings; interface with local government coordinators for workload prioritization

Create, manage, and delete user/group accounts and security policies

Provide one-on-one and remote technical support across multiple sites and systems (including via phone/email/remote logon)

Proactive monitoring of system and link performance; rapid troubleshooting and restoration

Perform system backups, restores, startups, shutdowns, error detection, log analysis, and recovery/restoration in line with applicable Technical Manuals and procedures

Support for remote and telephonic IT assistance

Support for installation, test events, site prep, validation, and system integration activities

Execute maintenance per technical documentation, and coordinate with Remedy or site-specific work order systems as applicable

Perform ISSO (Information System Security Officer) duties per DoDI 8500.01; monitor and remediate system vulnerabilities

Update antivirus signatures, analyze threats, implement vulnerability management plans, and report security event artifacts

Ensure timely implementation of IAVMs, CTOs, and threat assessments

Top Secret (TS) security clearance

DoD 8570/8140 baseline certification for Information Assurance Technical roles is typically required (e.g., Security+, CISSP, or similar)