Senior Windows SysAdmin – TS/SCI with Polygraph

J&T Business Consulting; Annapolis (MD); On-site; USD 188,000 - 210,000; Full time

Job summary

J&T Business Consulting in Annapolis Junction, MD, seeks a Senior Windows System Administrator with TS/SCI and Polygraph to join a fast-paced SAFe program. You will manage Windows infrastructure, Active Directory, and security controls across distributed environments.

Role focuses on vulnerability management, patching, and on-call O&M, with strong collaboration across engineering teams and documentation of SOPs and procedures.

Qualifications

• Minimum 7 years of Windows systems administration experience.
• Active TS/SCI security clearance with a current polygraph.
• Experience in information security governance, risk management, and compliance.

Responsibilities

• Maintain and administer Windows AD/DNS environments and GPOs.
• Monitor, patch, and remediate vulnerabilities per SSPs and IAVAs.
• Support O&M and on-call rotations; communicate outages and maintenance updates.
• Document procedures and maintain SOPs for IT operations.

Skills

AD & DNS

PowerShell

Group Policy

Active Directory

Scripting & CLI

IAVA vulnerability management

VMware virtualization

Networking fundamentals

ITIL practices

Windows OS administration

Education

Bachelor's degree in Computer Science or related field

Tools

VMware vSphere

Ansible

SaltStack

Job description

J&T Business Consulting in Annapolis Junction, MD, seeks a Senior Windows System Administrator with TS/SCI and Polygraph to join a fast-paced SAFe program. You will manage Windows infrastructure, Active Directory, and security controls across distributed environments.

Role focuses on vulnerability management, patching, and on-call O&M, with strong collaboration across engineering teams and documentation of SOPs and procedures.