Network/System Administrator I

TL;DR

Network/System Administrator I (Net/Sys Admin): Organize, install, and support government computer systems, including LAN/WAN networks, intranets, and data communication systems, with an accent on Windows Server/Exchange administration, CISCO networking, and security-focused operations. Focus on day-to-day management of collateral, SCI, and SAP environments, building O&M checklists/TTPs/SOPs, and operating SIEM monitoring with incident-response support under TS/SCI requirements.

Company

GDIT is a global technology and professional services company delivering mission services and technology solutions for U.S. government agencies.

What you will do

• Install, organize, and support LAN/WAN networks, network segments, intranets, and other data communication systems.
• Help architect, design, and analyze network models and support infrastructure upgrade decisions (hardware/software).
• Provide day-to-day operations and maintenance for Collateral, SCI, and Special Access Program (SAP) activities.
• Manage COTS/GOTS products for automated security and operations/performance metrics, and follow O&M checklists.
• Operate SIEM monitoring tools, create/tailor event alarms/rules, and produce summary reports.
• Participate in security incident response as needed and assist with technical risk analysis for emerging cybersecurity tools/processes.

Requirements

• Location: Onsite workplace in Dayton, Ohio
• Citizenship: U.S. citizenship required
• Security clearance: TS/SCI required (willingness to submit to a CI polygraph)
• 1+ years of related experience
• Thorough knowledge of Microsoft Windows desktop and server OS and Microsoft Exchange Server; working knowledge of RHEL administration as needed
• Working knowledge of CISCO networking/switching and virtualization technologies; LAN/WAN and data backup technologies including COMSEC integration

Culture & Benefits

• Work supports defense and critical operations across global environments.
• Travel requirement: 10–25%.
• Salary range: $75,650–$102,350 (set based on experience, geographic location, and other factors).
• Identity verification process may include advanced biometrics and AI during virtual interviews.