Network/System Administrator I

Description

At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star Employer-we protect and advance the nation's most critical missions. As part of our team, you'll tackle complex security challenges across SAP, SCI, and Collateral programs. If you're driven by national security, innovation, and integrity, we want to hear from you.

Position Overview

System High Corporation delivers the most advanced protection and secrecy solutions to secure and strengthen critical missions, programs, operations, and intelligence activities. We are seeking a Network/System Administrator I to help contribute to our success and help us solve problems with innovation through intelligence.

The Network/System Administrator I will organize, install, secure, and support a government organization's IT infrastructure-including LANs, WANs, network segments, intranets, servers, workstations, and related data communication systems. This role includes architecting and analyzing network models, participating in hardware/software upgrade decisions, and providing technical support to end users.

This position supports Special Access Programs (SAPs) and Department of Defense (DoD) agencies such as HQ Air Force, Office of the Secretary of Defense (OSD), and related Military Components. The administrator will provide day-to-day support for Collateral, Sensitive Compartmented Information (SCI), and SAP activities.

Duties include, but not limited to:

• Ability to operate under supervision
• Execute day-to-day management and operations of systems and networks.
• Follow Operations and Maintenance (O&M) checklists (daily/weekly/monthly/yearly).
• Develop and maintain Tactics, Techniques, and Procedures (TTPs) and Standard Operating Procedures (SOPs).
• Operate enterprise SIEM tools and create/tailor complex event alarms, rules, and reports.
• Assist in analyzing technical risk for emerging cybersecurity tools and processes.
• Support and participate in security incident response activities as needed.
• Provide technical support to end users for troubleshooting and resolution of issues.
• Operate effectively under supervision while managing assigned responsibilities.
• Execute day-to-day management and operations of systems and networks.
• Follow Operations and Maintenance (O&M) checklists (daily/weekly/monthly/yearly).
• Develop and maintain Tactics, Techniques, and Procedures (TTPs) and Standard Operating Procedures (SOPs).
• Operate enterprise SIEM tools and create/tailor complex event alarms, rules, and reports.
• Assist in analyzing technical risk for emerging cybersecurity tools and processes.
• Support and participate in security incident response activities as needed.
• Provide technical support to end users for troubleshooting and resolution of issues.
• Operate effectively under supervision while managing assigned responsibilities.

Qualifications

Clearance

• Current Top-Secret Clearance with SCI Eligibility
• Eligibility for access to Special Access Program Information
• Willingness to submit to a Counterintelligence polygraph

Years of Experience

• 1-3 of related experience

Education

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

Certifications

• Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 1 within 6 months of the date of hire

Other Requirements

• Microsoft Windows Server
• Red Hat Enterprise Linux
• Hypervisors: MS Hyper-V, VMWare, ESX, Xen
• Enterprise networking, firewalls, intrusion detection/prevention
• Forensic analysis and vulnerability assessment tools
• Group Policy configuration and management
• Scripting
• BMC Footprints
• WSUS
• Lumension
• BitLocker
• SQL Server 2012
• Tomcat, IIS
• Windows Server 2012r2/2016, Windows 10
• Red Hat 6.5
• Microsoft Office
• SIEMs, LogRhythm
• ACAS/Nessus/SCAP
• Mandatory/role-based access control (SELinux, PitBull, AppArmor, Sentris)
• Oracle/MS SQL database security
• Apache/IIS web server security
• Thorough knowledge of Microsoft Windows desktop and server OS
• Knowledge of Microsoft Exchange Server
• Working knowledge of RHEL administration as needed
• Cisco switching and network technologies
• LAN/WAN technologies
• Data backup technologies
• COMSEC integration
• Virtualization technologies
• Understanding of DoD policy regarding system and network administration
• Working knowledge of Risk Management Framework (RMF), Common Criteria, and System Security Policy
• Experience with PL2 network environments/systems
• Must be able to regularly lift up to 50 lbs.

Additional Information

• This job description is not designed to cover or contain all job duties required of the employee. There may be additional activities, duties and/or responsibilities that are required for this position that are not listed in this job description.
• In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.

• System High is a Military friendly employer. Our extensive work on behalf of the U.S. government offers those who have served in uniform an opportunity to continue to serve their country in a new and exciting way while enjoying a successful civilian career.

• System High values the power and strength of diverse backgrounds on the culture and performance of our company. We strive to maintain an inclusive culture to encourage each employee to bring their whole self to the mission.
• 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.
• If you require a reasonable accommodation to apply for a position with us, please email recruiting@systemhigh.com
• Legal notices can be viewed on the following PDFs: Know Your Rights: Workplace Discrimination is Illegal ; EPPA Notice ; FMLA Notice

Warning: Beware of recruitment scams: System High will never request money or personal purchases during the hiring process. Verify all communications come from a systemhigh.com or msg.paycomonline.com email address.