Senior Systems Administrator – TS/SCI, AI/ML Infra

Peraton; Chantilly (VA); On-site; USD 112,000 - 179,000; Full time

Job summary

Peraton seeks a Systems Administration Supervisor to oversee the availability, security, and performance of mission-critical systems in Chantilly, VA. You will lead daily operations, coordinate cross-team efforts, and serve as Helpdesk Lead for a data center/HPC program supporting AI processing.

Responsibilities include supervising staff, configuring and maintaining servers and networks, ensuring RMF/NIST compliance, documenting configurations, and preparing operational reports.

Qualifications

• Active TS/SCI clearance with the ability to obtain a polygraph.
• 6+ years of systems administration experience.
• Experience with AD server management and monitoring.
• Experience with monitoring and management tools.
• Knowledge ofBackup Systems, Networking principles, and equipment
• ITSM processes with emphasis on Incident and Event management.
• Experience writing technical documentation.
• Ability to coordinate and mentor staff.
• Relevant certifications (Security+, CISSP, or DoD 8570/8140).
• Strong Windows/Linux server admin, virtualization, and networking.
• Experience with classified/restricted-access systems.
• Excellent leadership and communication skills.

Responsibilities

• Supervise and mentor a team of systems administrators and guide daily tasks.
• Oversee installation, configuration, maintenance, and troubleshooting of servers and networks.
• Ensure RMF/NIST 800-53 security compliance and accreditation readiness.
• Coordinate with cybersecurity, engineering, and program management teams.
• Develop and enforce SOPs for systems administration activities.
• Monitor performance and capacity; recommend improvements.
• Manage scheduling and resource allocation for the team.
• Prepare documentation and operational reports.
• Support audits, inspections, and compliance reviews.
• Serve as escalation point for complex issues.

Skills

Leadership

Incident management

Windows/Linux admin

Networking

Documentation

Team mentoring

Communication

Education

DoD 8570/8140 compliance

Tools

Active Directory

Backup Systems

Monitoring tools

ITSM tools

Virtualization

Job description

Peraton seeks a Systems Administration Supervisor to oversee the availability, security, and performance of mission-critical systems in Chantilly, VA. You will lead daily operations, coordinate cross-team efforts, and serve as Helpdesk Lead for a data center/HPC program supporting AI processing.

Responsibilities include supervising staff, configuring and maintaining servers and networks, ensuring RMF/NIST compliance, documenting configurations, and preparing operational reports.