Enterprise Systems Administrator (Windows/Linux) – On-Call

NS2 Mission; Chantilly (VA); On-site; USD 110,000 - 151,000; Full time

Job summary

NS2 Mission in Chantilly, VA is seeking a Systems Administrator to manage enterprise server environments that support Intelligence Community customers. You will install, configure, monitor, and maintain Windows and Linux servers to ensure security, reliability, and performance across mission-critical systems.

Work with engineers, program teams, and vendors to deploy new systems, apply OS patches, manage backups, perform capacity planning, and provide on-call support.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Information Systems, Engineering, or a related technical discipline (or equivalent combination of education and experience).
• Experience administering Windows and/or Linux server environments in an enterprise environment.
• Experience with server installation, configuration, patch management, operating system upgrades, and lifecycle administration.
• Knowledge of server monitoring, performance tuning, backup and recovery, and capacity planning.
• Experience troubleshooting server hardware, operating systems, and enterprise infrastructure issues.
• Familiarity with asset management, system documentation, and configuration management best practices.

Responsibilities

• Install, configure, administer, and maintain enterprise server environments to ensure optimal performance, reliability, and availability.
• Develop and maintain server build documentation, configuration baselines, asset records, and technical procedures to support lifecycle management.
• Perform server deployments, upgrades, operating system updates, security patching, and baseline configuration changes in accordance with established standards.
• Monitor server health, system capacity, and performance metrics, providing tuning recommendations and implementing improvements to optimize system performance.
• Respond to service requests, incidents, and outage events by troubleshooting hardware, software, and operating system issues and restoring services in a timely manner.
• Support backup, recovery, and data restoration activities while maintaining secure access controls and protecting enterprise systems.
• Coordinate server installations, transitions, and infrastructure changes while collaborating with internal teams, vendors, and service providers.
• Maintain server rooms and support infrastructure, ensuring systems remain operational, secure, and compliant with organizational standards.
• Evaluate existing server infrastructure and recommend hardware refreshes, system enhancements, and technology improvements to support future mission needs.
• Participate in operational support activities, including after-hours or on-call support, special projects, and technical planning efforts as required.

Skills

Windows/Linux admin

Patch management

Monitoring

Backup & recovery

Capacity planning

Scripting

Education

Bachelor's degree in IT/CS/IS/Engineering

Tools

VMware

Hyper-V

Active Directory

Group Policy

Remote Administration Tools

Job description

NS2 Mission in Chantilly, VA is seeking a Systems Administrator to manage enterprise server environments that support Intelligence Community customers. You will install, configure, monitor, and maintain Windows and Linux servers to ensure security, reliability, and performance across mission-critical systems.

Work with engineers, program teams, and vendors to deploy new systems, apply OS patches, manage backups, perform capacity planning, and provide on-call support.