Senior IT Systems Administrator

General Dynamics Information Technology, Inc.; Annapolis (MD); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

401K with company match

Health and wellness packages

Internal mobility opportunities

Education and certifications

Job summary

General Dynamics Information Technology, Inc. seeks a System Specialist to support and optimize IT infrastructure in a mission-critical environment. You will administer servers, manage configurations, and ensure security and reliability across systems and applications.

You will collaborate with help desk, engineers, and business stakeholders to implement changes, document procedures, and drive continuous improvements while maintaining compliance with security policies and audit requirements.

Qualifications

• 5+ years of related IT systems experience.
• Experience with Windows and Linux server administration.
• Familiarity with Active Directory, group policies, and identity management.
• Experience with virtualization and cloud services (VMware/Hyper‑V, Azure/AWS).
• Strong troubleshooting across OS, apps, and networks.
• Knowledge of backup/restore and disaster recovery concepts.
• Understanding security best practices and patch management.

Responsibilities

• System Administration & Maintenance of servers, OS, and key apps.
• Apply patches, updates, and configuration changes per change control.
• Perform routine health checks, capacity planning, and performance tuning.
• Provide advanced technical support for escalated issues.
• Diagnose and resolve system, app, and network problems.
• Assist with user accounts, permissions, and access controls.
• Install, configure, and deploy new systems and tools.
• Document configurations, procedures, and standards.
• Participate in audits, risk assessments, and remediation activities.
• Prepare reports on system health and incidents.

Skills

Windows Admin

Linux Admin

Active Directory

VMware/Hyper‑V

Cloud Services

Patch Management

Networking

PowerShell

Monitoring Tools

ITIL

Tools

SolarWinds

Nagios

PRTG

Splunk

Job description

General Dynamics Information Technology, Inc. seeks a System Specialist to support and optimize IT infrastructure in a mission-critical environment. You will administer servers, manage configurations, and ensure security and reliability across systems and applications.

You will collaborate with help desk, engineers, and business stakeholders to implement changes, document procedures, and drive continuous improvements while maintaining compliance with security policies and audit requirements.