Technology and Systems Administrator

General information Requisition # R66998 Locations USA-VA-Portsmouth Posting Date 04/06/2026 Security Clearance Required Secret Remote Type Onsite Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH! MANTECH seeks a motivated, career and detail-oriented Technology & Systems Administrator to support our operations in Portsmouth, VA . This is an onsite position. In this role, you will be involved in managing critical infrastructure inventory and asset collection project for 50+ key U.S. Coast Guard (USCG) sites. This position requires extensive travel and hands-on work to identify, document, and assess facility-related control systems. The ideal candidate will be a self-starter with a strong technical aptitude and the ability to work independently in various industrial environments. Responsibilities include but are not limited to: Travel to assigned USCG facilities based on defined criticality within geographical regions to conduct a physical inventory of all facility-related control systems and associated hardware/software Accurately identify and document equipment details, including manufacturer, model, serial number, firmware version, operating systems and physical location Enter all collected data into a Configuration Management (CM) tool, ensuring data integrity and accuracy Run pre-defined scripts to gather system information on control system workstations and servers Work closely with on-site facility engineers and points of contact to locate equipment and understand system configurations Provide informal training and guidance to on-site personnel regarding cybersecurity hygiene and best practices for Operational Technology Prepare and submit regular reports on inventory status, site visit summaries, and any identified issues or discrepancies Willingness and ability to travel extensively (up to 75% or more) to various sites across the United States Ability to work independently, manage time effectively, and solve problems as they arise on-site

Minimum Qualifications:

Bachelor's degree in Computer Science, Cybersecurity, Information Systems, or a related field 3+ years of relevant System Administration experience 2+ years of hands-on experience with Industrial Control Systems (ICS), Operational Technology (OT), SCADA, or Building Automation Systems (BAS); this includes familiarity with PLCs, HMIs, and other control system components Experience running command-line scripts, troubleshoot basic network connectivity, and understand IT/OT system architecture

Preferred Qualifications:

Strong verbal and written communication skills, with the ability to effectively interact with and train both technical and non-technical personnel Meticulous attention to detail to ensure accurate data collection and entry into the configuration management tool

Clearance Requirements:

Must have a current and active

DoD Secret Security Clearance Physical Requirements :

The person in this position must be able to walk extensively, climb ladders/stairs, and work in various industrial environments (hot, cold, noisy). Must be able to lift and move equipment up to 50 pounds. MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.