Network​/Systems Administrator III

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

Certifications:

None

5+ years of related experience.

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 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 of 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 2012r2/2016, Win 10, Red Hat 6.5, Microsoft Office, Toolkits, SEIMs, Logrhythm, ACAS/Nessus/SCAP, mandatory/role-based access control concepts (e.g. SELinux 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 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…