Senior Systems Administrator - Windows/Linux, TS/SCI Clearance

nDepth Security, LLC; Maryland; On-site; USD 120,000 - 180,000; Full time

Job summary

nDepth Security, LLC seeks an experienced IT security administrator in Maryland to manage Windows and UNIX/Linux servers, with emphasis on incident restoration, virtualization, backups, and documentation. The role requires TS/SCI with Polygraph and U.S.

citizenship, with core hours Monday–Friday and additional contract hours 10:00 a.m.–2:00 p.m. You will mentor junior staff, maintain runbooks and SOPs, and ensure audit readiness through rigorous patching, upgrades, and validation in a secure

Qualifications

• Doctorate or master's or bachelor's path with required years of directly related experience.
• Hands-on administration, restoration, virtualization, backups, patching, and documentation.
• Security+ or equivalent DoD 8570 IAT Level II certification required.

Responsibilities

• Administer and troubleshoot Windows and UNIX/Linux servers and training services.
• Lead complex incident restoration, virtualization maintenance, and capacity improvement.
• Maintain version-controlled runbooks, SOPs, inventories, and configuration baselines.
• Execute authorized patching, upgrades, backups, restoration, and validation.
• Mentor administrators and document evidence supporting audit readiness.

Job description

nDepth Security, LLC seeks an experienced IT security administrator in Maryland to manage Windows and UNIX/Linux servers, with emphasis on incident restoration, virtualization, backups, and documentation. The role requires TS/SCI with Polygraph and U.S.

citizenship, with core hours Monday–Friday and additional contract hours 10:00 a.m.–2:00 p.m. You will mentor junior staff, maintain runbooks and SOPs, and ensure audit readiness through rigorous patching, upgrades, and validation in a secure