> Markdown version of [/jobs/ext/3145229-senior-systems-administrator-284k-yr-ts-sci-fs-poly](https://www.wearedevelopers.com/jobs/ext/3145229-senior-systems-administrator-284k-yr-ts-sci-fs-poly). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Administrator [$284k/yr+] TS/SCI-FS Poly - **Company:** SYSTOLIC, INC. - **Location:** Annapolis Junction, MD, United States - **Experience:** Expert - **Salary:** $284,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Disaster Recovery, VMware ESX Servers, Networking Hardware, Local Area Networks, Linux Servers, Windows Servers, NetApp Applications, Network Virtualization, Virtualization Technology, System Availability, Vcenter, Nessus, Vulnerability Analysis, Vmware - **Published:** September 29, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9198103/senior-systems-administrator-284kyr-tssci-fs-poly ## About the Role * Degree: Technical bachelor's degree or equivalent experience * Years of experience: 15+ years * Total Compensation: $284k+ yearly ## Description * Administer Windows and Linux servers, ensuring high availability, performance, and security across development enclaves. * Manage VMware and ESXi virtualized environments, vCenter, and virtual networking configurations. * Maintain storage systems, network devices, and perform system hardening and vulnerability scanning with Nessus and ACAS aligned with RMF baselines., * Administer Windows Server, Active Directory, Group Policy, and Linux server environments. * Manage VMware ESXi virtualization, vCenter, virtual networking, and NetApp storage solutions. * Conduct vulnerability assessment and security compliance scanning using tools such as Nessus and ACAS. * Implement system hardening, maintain baseline system security, and align configurations with RMF requirements. * Perform functional and connectivity testing to guarantee ongoing system operability. * Plan, execute, and verify comprehensive data redundancy, backup, and system recovery procedures. * Troubleshoot and resolve hardware, operating system, and hardware/software interface interoperability issues. * Develop, document, and adhere to systems administration standard operating procedures and local network usage policies.