Network​/System Administrator III Security Clearance

Key Requirements

• TS/SCI clearance
• Minimum 2 years of Special Access Program experience
• Current Top‑Secret clearance with SCI eligibility
• Willingness to submit to a counterintelligence polygraph

• Organize, install, and support government computer systems, including LANs, WANs, network segments, intranets, and other data communication systems.
• Architect, design, and analyze network models.
• Participate in decisions about purchasing hardware or software to upgrade infrastructure.
• Provide technical support to computer users to resolve issues.
• Provide day‑to‑day support for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) activities.
• Able to perform self‑sustaining work with little to no oversight.
• Lead IT operations team in day‑to‑day management and operation of networks, implementing cybersecurity capabilities vetted through Cybersecurity, ISSE, and higher headquarters to maintain JSIG/RMF Authority to Operate and 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, and security appliances.
• Assist during security assessments with regard to accuracy and efficiency.
• Develop and maintain operational O&M checklists, TTPs, and SOPs for service support.
• Operate and tailor Enterprise SIEM capabilities, creating complex event alarms, rules, and summary reports.
• Execute cybersecurity operations procedures for day‑to‑day network management, operations, and maintenance.
• Monitor and analyze output of cybersecurity tools for reportable security incidents and residual risk.
• Assist in analyzing technical risk of emerging cybersecurity tools and processes upon request.
• Serve as part of a security incident response team as needed.
• Assist ISSM, ISSO, and ISSE with integration and development of new techniques to improve confidentiality, integrity, and availability for networks and systems operating at various classification levels.

• Microsoft Windows Server, Active Directory, Red Hat Enterprise Linux servers, MS Hyper‑V, VMware, ESX, Xen Hypervisors, enterprise networking/firewalls/IDS/IPS, forensic analysis, vulnerability assessment, group policy management, scripting, BMC Footprints, WSUS, Lumension, Bitlocker, SQL Server 2012, Tomcat, IIS, Windows Server 2012 R2/2016, Windows 10, Red Hat 6.5, Microsoft Office.
• SEIMs (Log Rhythm), ACAS/Nessus/SCAP, mandatory/role‑based access control concepts such as SE Linux extensions, Pit Bull, App Armor, Sentris.
• Video teleconferencing/VOIP, Oracle/SQL database security, Apache/IIS web server security.

5–7 years of related experience.

• Bachelor’s degree in a related field or equivalent (4 years).

• Must meet DoD Directive 8570.01‑M for Information Assurance Technician Level III (IAT III) within 6 months of hire.

• Current Top‑Secret clearance with SCI eligibility.
• Eligibility for access to Special Access Program information.

• 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 collaboration in a high‑performance team environment.
• Group Policy design and configuration.
• Working knowledge of Cisco network and switching, virtualization technologies.
• Working knowledge of virtualization as it applies to users’ environments, operating systems, and network appliances.
• Working knowledge of LAN and WAN technologies and data backup technologies.
• Working knowledge of 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.
• Must be able to regularly lift up to 50 lbs.

System High Corporation is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, veteran status, or any other characteristic protected by law. We are proud to be an equal‑opportunity workplace.