System High Corporation · 1 day ago
Network/System Administrator III
San Antonio, TX
Full-time
Onsite
Senior Level
5+ years expSystem High Corporation is a top workplace dedicated to protecting the nation’s critical missions. The Network/System Administrator III will organize, install, and support government computer systems while providing technical support and managing network operations.
Security
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
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
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
Qualification
Required
TS/SCI Clearance
Minimum of two years of Special Access Program Experience
5 - 7 years related experience
Bachelor's degree in a related area or equivalent experience (4 years)
Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level III (IAT III) within 6 months of the date of hire
Current Top-Secret Clearance with SCI Eligibility
Eligibility for access to Special Access Program Information
Willingness to submit to a Counterintelligence polygraph
Thorough knowledge of Microsoft Windows desktop and server operating systems
Thorough knowledge of Microsoft Exchange Server
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 users' environments, operating systems, and network appliances
Working knowledge of Local Area Network (LAN) and Wide Area Network (WAN) technologies and data backup technologies
Working knowledge communication 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
Must be able to regularly lift up to 50 lbs
Company
System High Corporation
System High provides best-of-class protection solutions for information and assets vital to national security.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
unknownKey Investors
Enlightenment Capital
2025-03-17Acquired
2019-01-22Private Equity
Leadership Team
kirk blubaugh
CEO
Recent News
Washington Technology
2025-03-13
Company data provided by crunchbase