Senior System Administrator — TS/SCI w/ Poly, Air-Gapped

J&T Business Consulting; Annapolis (MD); On-site; USD 100,000 - 200,000; Full time

Benefits offered by this job

Health, dental, vision insurance

401(k) retirement plan with company09

Tuition reimbursement

Paid time off and holidays

Job summary

J&T Business Consulting in Annapolis, MD seeks a Mid/Sr System Administrator with TS/SCI clearance. You will support an air‑gapped distributed network, deploy and patch server/desktop environments, and enforce security controls across Windows and Linux systems.

Responsibilities include AD/PKI management, vulnerability remediation, virtualization, and documentation to enable rapid incident response. Occasional travel and light physical lifting are required.

Qualifications

• Active TS/SCI with Polygraph required.
• Bachelor’s degree in a technical field plus 8 years of systems administration experience or equivalent.
• Proficiency with Windows Server 2019, AD, and foundational RHEL knowledge.
• Experience with virtualization (VMware) and enterprise monitoring/automation tools like SaltStack, Ansible, Splunk, Puppet, SolarWinds, Nessus.
• Ability to lift up to 50 lbs and travel for short durations.

Responsibilities

• Install, configure, and maintain Windows and Linux server/desktop configurations across air‑gapped enclaves.
• Administer web-based information sharing and storage environments.
• Manage Active Directory, GPOs, certificates, and access controls.
• Perform vulnerability management and patching with automated tools.
• Virtualization management and hardware reimaging/troubleshooting.
• Document server/network architectures for rapid incident response.
• Communicate system status and outages to stakeholders.
• Support occasional local travel and physical equipment handling.

Education

Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering Management, or a related technical discipline

8+ years of relevant systems administration experience

Tools

Windows Server 2019

Active Directory

Red Hat Enterprise Linux (RHEL)

VMware

SaltStack

Ansible

Splunk

Puppet

SolarWinds

Nessus

Job description

J&T Business Consulting in Annapolis, MD seeks a Mid/Sr System Administrator with TS/SCI clearance. You will support an air‑gapped distributed network, deploy and patch server/desktop environments, and enforce security controls across Windows and Linux systems.

Responsibilities include AD/PKI management, vulnerability remediation, virtualization, and documentation to enable rapid incident response. Occasional travel and light physical lifting are required.