Mid/Sr System Administrator (TS/SCI Clearance with Full Scope Polygraph Required)

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

Mid/Sr System Administrator (TS/SCI Clearance with Full Scope Polygraph Required)

Annapolis, United States

Clearance Requirement: Active TS/SCI with Polygraph

Salary Range: $100,000 – $200,000 / year (dependent on experience, education, and skill set)

About the Role

Seeking an energetic and experienced Mid/Sr System Administrator to support a large, complex, and geographically distributed network environment in Annapolis Junction, MD.

In this role, you will deliver full-lifecycle systems administration, operations, and maintenance across multiple air-gapped enclaves, each featuring dedicated domains, storage architectures, and network infrastructure. You will be responsible for deploying, patching, and optimizing server and desktop environments, driving security compliance, and troubleshooting complex hardware and software issues to ensure maximum operational uptime.

Key Responsibilities

Install, configure, optimize, and maintain Windows and Linux server/desktop configurations across complex, air-gapped enclaves.

Administer, sustain, and troubleshoot web-based information sharing and storage application environments.

Manage Active Directory, domain services, group policies, certificate renewals, and access controls.

Execute system scanning, vulnerability management, security patching, and vulnerability mitigation using automated tools.

Perform client and server virtualization management, virtual machine provisioning, and hardware reimaging/troubleshooting.

Maintain comprehensive documentation of server and network architectures to facilitate rapid incident response and knowledge sharing.

Communicate system status, scheduled maintenance, and outage resolutions with end users, technical teams, and program leadership.

Support occasional short-duration local/day travel and handle physical equipment handling (up to 50 lbs).

Required Qualifications & Experience

Security Clearance: Active TS/SCI with Polygraph.

Education & Experience:

Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering Management, or a related technical discipline plus at least 8 years of relevant systems administration experience, OR

Equivalent combination of additional years of hands‑on technical experience substituting for the degree.

Operating Systems & Directory Services: Proficiency with Windows Server 2019, Active Directory, and foundational knowledge of Red Hat Enterprise Linux (RHEL).

Virtualization: Hands‑on experience administering client and server virtualization platforms (e.g., VMware).

Enterprise Tools: Demonstrated familiarity with enterprise monitoring, automation, and security tools (e.g., SaltStack, Ansible, Splunk, Puppet, SolarWinds, Nessus).

Hardware & Operations: Proven ability to install, configure, troubleshoot, reimage, back up, and restore enterprise server and desktop hardware.

Physical & Travel Requirements: Ability to lift up to 50 lbs and support occasional day or short-duration travel.

Desired Qualifications

Proficiency with Microsoft SQL Server administration.

Automation and scripting experience using Python, SaltStack, PowerShell, and PowerCLI.

Background supporting software configuration management and development staging environments.

Experience working within Agile frameworks and delivery teams.

Working knowledge of PKI architectures utilizing Hardware Security Modules (HSMs) and NTP synchronization.

Experience generating documentation and technical evidence for system security authorization and accreditation packages.

Benefits & Compensation

This position offers a comprehensive benefits package designed to support employees both personally and professionally:

Comprehensive Health, Dental, and Vision Insurance

Basic Life and Disability Insurance

Paid Time Off (PTO) and Paid Holidays

401(k) Retirement Plan with Company Match

Tuition Reimbursement for ongoing education and professional development

An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected under federal, state, or local law.