Network/System Administrator (Net/Sys Admin) III

Clearance Level
Top Secret/SCI
Network Administration
Hanscom, Massachusetts
Onsite Workplace
Key Skills For Success

Network Administrator

Network Architecture

Network Engineering

REQ#: RQ170320
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

*********Net/Sys Admin) III - SIGN-ON BONUS UP TO $10,000*********

The primary function will be to organize, install, and support government organization’s computer systems, including local area networks (LANs), wide area networks (WANs), network segments, intranets, and other data communication systems. This will also include helping architect, design and analyze network models. It will require participation in decisions about buying future hardware or software to upgrade organization’s infrastructure.

This position might be called upon to provide technical support to computer users to help solve users’ problems. This position will support activities within Special Access Programs (SAPs) supporting Department of Defense (DoD) agencies, such as HQ Air Force, Office of the Secretary of Defense (OSD) and Military Compartments efforts. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities. MUST HAVE 2 YEARS OF SAP experience. No exceptions.

Performance shall include:

  • Able to perform self-sustaining and work with little to no oversight.

  • Lead IT ops team on day-to-day management and operations of Networks and implement capabilities vetted through Cybersecurity, ISSE and higher headquarters to maintain JSIG/RMF Authority to Operate and maintain Continuous Monitoring tools and processes.

  • Manage COTS & GOTS products to collect, display and remediate a variety of automated system security and system operations/performance functions and metrics.

  • Assist during security assessments of servers/network devices/security appliances.

  • Assist during security assessments with regard to accuracy and efficiency.

  • Assist with Creation of operational Operations and Maintenance (O&M) checklists to maintain the service (daily, weekly, monthly, yearly O&M checklists); build Tactics, Techniques and Processes (TTPs) and Standard Operating Processes (SOPs) associated with service checklists.

  • Manage and operate monitoring tools/capabilities with the enterprise security information and event management (SIEM) and create/tailor complex event alarms/rules and summary reports.

  • Execute cybersecurity operations procedures for day-to-day network management, operations and maintenance.

  • Monitor/analyze output of cybersecurity related tools for reportable security incidents and residual risk.

  • Assist in analyzing technical risk, upon request, of emerging cybersecurity tools and processes.

  • Work as part of a security incident response team as needed.

  • Assist ISSM/ISSO/ISSE with the Integration/Development new techniques to improve.

  • Confidentiality, Integrity, and Availability for networks/systems operating at various classification levels.

  • Confidentiality, Integrity, and Availability for networks/systems operating at various classification levels.

  • Advanced technical competency in one or more of the following supported platforms:

  • Microsoft Windows Server, Active Directory Red Hat Enterprise Linux servers, MS Hyper-V/VMWare/ESx/Xen Hypervisors, Enterprise networking/firewalls/intrusion detection/prevention systems, forensic analysis/vulnerability assessment, Group Policy management and configuration, Scripting, BMC Footprints, WSUS, , Lumension, Bitlocker, SQL Server 2012, TomCat, IIS, Windows Server 2012r2/2016, Win 10, Red Hat 6.5, Microsoft Office Toolkits, SEIMs, Logrhythm, ACAS/Nessus/SCAP, mandatory/role-based access control concepts (e.g. SE Linux extensions to RHEL, PitBull, AppArmor, and Sentris), video teleconferencing/VOIP, Oracle/MS SQL database security, and Apache/IIS Web server security.

Other Requirements:

  • Thorough knowledge of Microsoft Windows desktop and server operating systems, Microsoft Exchange Server, and as needed RHEL operating systems administration and associated hardware.

  • Experience in effective communication and collaborating in a high-performance team environment.

  • Group Policy design and configuration.

  • Working knowledge of CISCO network and switching and virtualization technologies.

  • Working knowledge of virtualization as it applies to user environments, operating systems, and network appliances.

  • Working knowledge of Local Area Network (LAN) and Wide Area Newtork (WAN) technologies and data backup technologies.

  • Working knowledge communications security (COMSEC) policies and integration.

  • Working knowledge of Risk Management Framework, Common Criteria, and System Security Policy as they relate to assessments and authorization.

  • Working knowledge and current relevant experience with PL2, PL3, and PL4 network environments/systems.

  • Working knowledge of WSUS and/or YUM patch deployment methodologies.

  • Must be familiar with DoD policy as it applies to implementing and executing system and network administration.

  • Working knowledge of Risk Management Framework and how to apply it to network/information system environments.


  • 5+ years related experience.

  • 2+ years SAP experience required.


  • Bachelor’s degree in a related area or equivalent experience (4 years)


  • IAT Level III (CISSP, CASP+ CE, CCNP Security, CISA, etc.)

Clearance Required to Start:

  • TS/SCI required.

  • Must be able to Attain – TS/SCI with CI Polygraph.

#AirforceSAPOpportunities #TS/SCI

Work Requirements
Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree



CCNP - Cisco

Travel Required



U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $109,068 - $147,562. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
View information about benefits and our total rewards program.

About Our Work

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.