Sr Systems Administrator (Linux/Windows)- Annapolis Junction, MD- TS/SCI CI Poly

Zachary Piper Solutions is seeking a Senior Systems Administrator (Linux/Windows) to join a Government Consulting company located in Annapolis Junction, MD; Fairfax, VA; El Segundo, CA; or Tukwila, WA through a 100% on-site work environment. The Senior Systems Administrator will support a mission-critical, multi-site IT infrastructure for a classified customer, focusing on secure system administration, patching, virtualization, and application support across Linux and Windows environments.

Responsibilities:

• Deploy, configure, and maintain Linux and Windows systems in secure lab environments.
• Perform system patching, vulnerability scanning (e.g., Tenable), and remediation.
• Support application integration, development, and troubleshooting across virtualized environments.
• Manage system transitions, including VM provisioning and application deployment.
• Ensure compliance with RMF/JSIG standards and support IA processes.
• Automate administrative tasks using scripting tools such as PowerShell or Bash.
• Provide Tier II support and escalate issues as needed.

Qualifications:

• 9+ years of experience in IT systems administration within classified or lab/test environments.
• Proficiency in Linux (RHEL) and Windows Server/Desktop administration: ability to stand up servers independently.
• Experience with VMware, Active Directory, GPOs, and scripting (PowerShell/Bash).
• Familiarity with patch management, Tenable scans, and secure system integration.
• Security+ certification (or ability to obtain within 6 months).
• Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent experience).
• Active TS/SCI with CI Poly (obtained within last 5 years)

Compensation:

• Salary Range: $120,000 – $180,000 depending on experience
• Comprehensive Benefits: Medical, Dental, Vision, 401K, PTO, Sick Leave as required by law, and Holidays
• Clearance Level: Must be eligible to work in the United States and maintain an Active U.S. Government TS/SCI with CI Poly security clearance (obtained in the last 5 years).
• Location: 100% On-site in Annapolis Junction, MD; Fairfax, VA; El Segundo, CA; or Tukwila, WA

Keywords: Red Hat Enterprise Linux, RHEL, Windows Server 2016/2019/2022, Windows 10/11, Vmware, vSphere, ESXi, Hyper-V, VxWorks Embedded Linux, Thin Clients, TS/SCI with Full Scope Polygraph, CI Polygraph, RMF (Risk Management Framework), JSIG (Joint SAP Implementation Guide), STIGs (Security Technical Implementation Guides), IAT Level II, IAT Level III, Security+ Certification, Tenable Nessus, Vulnerability Scanning, Patch Management, Information Assurance (IA), DISA Compliance, Active Directory (AD), Group Policy Objects (GPOs), DNS, DHCP, LDAP, Server Provisioning, Virtual Machine (VM) Deployment, System Hardening, Backup and Recovery, System Monitoring, High-Performance Computing (HPC), Infrastructure Automation, PowerShell, Bash, Shell Scripting, Git, GitHub, Atlassian Suite, Jira, Confluence, Cadence, DOORS, Ansible, SCCM, WSUS, SolarWinds, Splunk, Application Deployment, Application Troubleshooting, CI/CD Pipelines, Agile, Scrum, Software Integration, COTS Software, GOTS Software, TCP/IP, Network Configuration, Firewall Rules, Switches, Routers, Secure Lab Environments, Hardware Troubleshooting, Annapolis Junction MD, Fairfax VA, El Segundo CA, Tukwila WA, Systems Administrator, Systems Administration, Systems Admin