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# Senior Systems Administrator [$282k/yr+] TS/SCI-FS Poly

- **Company:** SYSTOLIC, INC.
- **Location:** Annapolis Junction, MD, United States
- **Experience:** Expert
- **Salary:** $282,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, JIRA, Command Prompt, Dynamic Host Configuration Protocol, Domain Name System (DNS), Subnetting, Network Layer, Networking Basics, Windows PowerShell, PuTTY, TCP/IP, Virtual Local Area Networks, Software Vulnerability Management, Nx-os, Patch Management, CIS Benchmarks, Cisco Switches, Cisco
- **Published:** October 3, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9214602/senior-systems-administrator-282kyr-tssci-fs-poly

## About the Role

* Degree: Technical bachelor's degree or equivalent experience
 * Years of experience: 15+ years
 * Total Compensation: $282k+ yearly

## Description

* Configure, maintain, and troubleshoot Cisco enterprise switches running IOS-XE and NX-OS.
 * Provide full lifecycle administration, configuration, and troubleshooting for Windows 10 and Windows 11 endpoints and VDI systems.
 * Support network fundamentals including VLANs, subnetting, DHCP/DNS, and MAC-based port security.
 * Execute vulnerability remediation, patch management, and STIG compliance across managed systems.
 * Manage Active Directory objects and maintain ticketing workflows using JIRA., * Configure, maintain, and troubleshoot Cisco switches running IOS-XE and NX-OS platforms.
 * Implement and manage port security protocols, including MAC-based controls and violation remediation.
 * Troubleshoot enterprise networking fundamentals encompassing TCP/IP, subnetting, DHCP/DNS, and Layer 2/Layer 3 operations.
 * Maintain and support classified VDI and thin-client desktop platforms, including endpoint provisioning and connectivity troubleshooting.
 * Deploy endpoints and perform system imaging utilizing PXE boot tools.
 * Administer Windows 10 and Windows 11 client systems, managing configurations, updates, and lifecycle operations.
 * Remediate vulnerabilities in accordance with IAVAs and maintain compliance with DISA STIGs and security baselines.
 * Utilize CLI tools, PowerShell, PuTTY, and Windows command-line utilities for diagnostics and operational automation.
 * Perform Active Directory administration, including user account, group, and OU management.
 * Deliver responsive end-user support and track incident resolution using JIRA.