Network​/Systems Administrator III

Req

RQ219263

Regular

Top Secret/SCI

None

IT Infrastructure and Operations

Computer Backups, Computer Networking, Local Area Network (LAN)

Security+, CE - Comptia Security+ - Comptia Security

5+ years of related experience

Yes

Transform technology into opportunity as a Network/System Administrator III with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

As a Network/Systems Administrator III
, you will help ensure today is safe and tomorrow is smarter. The position will provide “day‑to‑day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

• 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 metric
• 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
• 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, Tom Cat, IIS, Windows Server 2012 r2/2016, 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, Pit Bull, App Armor, and Sentris), video teleconferencing/VOIP, Oracle/MS SQL database security, and Apache/IIS Web server security

• 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
• Working knowledge of CISCO network and switching and virtualization technologies
• Working knowledge of Local Area Network (LAN) and Wide Area Network (WAN) technologies and data backup technologies to include communication security (COMSEC) integration.
• Working knowledge of Risk Management Framework, and, Common Criteria, and System Security Policy as they relate to A&A
• 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…