Senior System Administrator | TS/SCI Polygraph

Description COMSO, Inc. is a powerhouse when it comes to empowering federal government stakeholders to fulfill their mission with confidence and efficiency. Our staff brings knowledgeable IT systems expertise, software development proficiency, innovative learning solutions for workforce development, and exceptional operations and production support. We were...

Systems Administrator (TS/SCI Clearance With Full Scope Polygraph Required) Annapolis, United States | Posted on 10/22/2026 Salary Range: $83,000 – $100,000 / year (dependent on experience, education, and skill set) About the Role Seeking a dedicated Tier 1 System Administrator to deliver frontline technical support, incident management, and user...

Salary Range: $83,000 – $100,000 / year (dependent on experience, education, and skill set) About the Role Seeking a dedicated Tier 1 System Administrator to deliver frontline technical support, incident management, and user administration within an enterprise IT environment. In this role, you will be the initial point of contact for technical support,...

J&T Business Consulting in Annapolis, MD seeks a Tier 2 Level 1 Systems Administrator with an active TS/SCI clearance and current polygraph. The role supports secure server infrastructure, patch management, and security controls in a governed enterprise environment. The candidate will handle escalated issues, perform system configurations, and collaborate on...

J T in Annapolis Junction, MD seeks a Tier 2 Level 1 Systems Administrator to support, maintain, and optimize enterprise servers and applications in a secure environment. Responsibilities include patch management, security controls, incident response, audits, and collaboration with cross-functional IT teams. A TS/SCI with Polygraph clearance is required,...

Athenix Solutions Group in Annapolis, Maryland is seeking System Administrators for a range of roles to provide technical support for software and hardware systems. Candidates need an active TS/SCI with Polygraph clearance. Positions range from entry level to senior level, accommodating varying experience levels. Responsibilities include IT systems support,...

J T in Annapolis Junction, MD, seeks a Tier 2 Level 1 Systems Administrator to support secure enterprise infrastructure. This on-site role covers server OS admin, patching, security controls, and cross-functional IT projects. Shift is Wednesday–Sunday, 10:00 PM–6:00 AM with a TS/SCI clearance and polygraph requirement. The ideal candidate will diagnose...

Description Athenix Solutions Group is looking for a System Administrators a variety of roles to maintain and provide technical support for diverse software and hardware systems assisting in the defense of our nation. We have roles for SAs to work individually or as part of a team. Do you have skills and experience in some of the following areas? Providing...

System Administrator (All Levels) Network Engineers | Storage Engineers | Platform Engineers Locations: Maryland and Utah Clearance Required: Active TS/SCI with Polygraph Citizenship: U.S. Citizenship Required Position Overview Open Systems Technologies Corporation (OST) is seeking System Administrators at all experience levels to support mission-critical...