449 System Administrator Security Analyst jobs in Gaithersburg,MD

Leidos

College Park, MD 20741

Expert-level Intune engineering across Windows/macOS/iOS/iPadOS.
Advanced PowerShell for remediation, automation, and OS image manipulation.
Deep experience with Microsoft Defender (XDR, Endpoint, Cloud Apps).
Hands-on with Sentinel SIEM, Function Apps, and cross-platform telemetry pipelines.
Strong understanding of CAP architecture and identity risk enforcement.
Experience with ATO control evidence, compliance mapping, and audit support.

Southpoint Consulting

Washington, DC 20002

Leidos

Ellicott City, MD 21042

Bachelor's degree plus five (5) years of relevant experience or equivalent.
IAT level II (Sec+, CSA+, etc.)
Security Clearance: Candidates must possess an active TS/SCI with Polygraph to be considered for this role.
Mission Focus: Candidate must be able to create/modify accounts, troubleshoot network and client server model, and have proficiency with Linux, Windows, and RedHat
Technical Proficiency: Demonstrated experience with data management and data transfer, be able to maintain network infrastructure, conduct vulnerability scanning, plus know and understand STE/STN requirements.

ManTech

Springfield, VA 22150

Boston Consulting Group

Washington, DC 20015

Vantor

Reston, VA 20190

Must be a US citizen and have an active TS/SCI with CI poly.
This position requires an active U.S. Government Security Clearance at the TS/SCI level with an in-scope CI poly.
Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
Employment for cleared roles is contingent upon verification of clearance status.
12 years of experience and an advanced degree
Experience conducting strategic foresight or horizon scanning in a national security or technology context.
Strong oral and written communication skills.
Possesses an expert ability to describe findings and techniques tailored to the intended audience, including technical and nontechnical decision makers.