Senior System Administrator (On-Site)

The following states/districts are excluded from this job ad: AK, CA, CO, CT, DC, HI, LA, MA, MN, MO, NE, NV, NH, NJ, NM, NY, ND, OR, PR, RI, VT, WA, WY. Future Need - Actively Interviewing Are you an experienced IT professional ready to support and secure mission‑critical systems? We're looking for a Senior System Administrator who thrives on solving complex technical challenges, optimizing system performance, and maintaining secure, reliable enterprise infrastructure in a dynamic environment. Location: Joint Pathology Center, 606 Stephen Sitter Ave, Silver Spring, MD 20910 Position Description: The Senior System Administrator provides advanced system administration, technical oversight, troubleshooting, configuration management, and security support services to ensure the operational availability, integrity, security, and compliance of Joint Pathology Center (JPC) information systems. Minimum/General Experience: 5 years of system administration experience. Minimum Education: Bachelor’s Degree in information technology, computer science, cybersecurity, engineering, or related field; Active certification meeting Cyber IT/Cybersecurity Workforce (CSWF)/Information Assurance Technician (IAT) Level II requirements (e.g., Security+ CE, CySA+, CND, GSEC, GICSP, SSCP). Essential Skills/Qualifications Excellent experience performing system monitoring, troubleshooting, and configuration tasks. Excellent experience performing routine system administration and maintenance tasks. Excellent experience with Windows Server environments (2016, 2019, 2022). Excellent experience with Linux‑based medical devices and network‑connected peripherals. Experience with both physical and virtualized servers (e.g., VMware). Excellent experience with Microsoft Enterprise Configuration Management (MECM/SCCM). Experience leading system migrations, modernization efforts, and hardware/software upgrades. Experience with virtualization environments (e.g., vSphere). Experience with enterprise storage solutions (e.g., NetApp, OneFS). Experience supporting a federal agency. Excellent written and verbal communication skills. Strong problem‑solving and analytical thinking skills. Ability to work independently on complex issues. General Physical Requirements Assignment Location: Joint Pathology Center, 606 Stephen Sitter Ave, Silver Spring, MD 20910. Sedentary work; occasional exertion of up to 10 pounds of force; frequent or constant light lifting, carrying, pushing, pulling, or moving objects. Typing, communicating, and repetitive motions. Close visual acuity to review data, computer monitors, and presentation screens in a virtual setting. Work in indoor environments with protection from outside elements. Security Active DoD Secret Clearance; Ability to obtain DoD Top Secret Clearance as needed. U.S. Citizenship. DoD Clearance Consists of a review of up to but not limited to: 10‑year period and, in some instances, lifetime events. OPM Security Investigations Index (SII). DoD Defense Central Investigations Index (DCII). National Agency Check (NAC) records. FBI name check. FBI fingerprint check. Credit report check. Check of local law enforcement agencies with jurisdiction over the areas where the applicant has lived, worked, or attended school. Education check – attendance and degrees. Employment verification – may include supervisor or coworker interviews. Confirmation of all residences. Verification of public record information. Acceptable Credentials Tasks/activities include, but are not limited to: Ensure full operational capability of JPC information systems, including Windows Server environments (2016, 2019, 2022), Linux‑based medical devices, and networked peripherals. Design, configure, and maintain DNS, DHCP, Active Directory, and advanced Group Policy environments. Oversee Microsoft Enterprise Configuration Management (MECM/SCCM) operations. Deploy, manage, and troubleshoot VMware virtualization environments, including vSphere. Perform administration and optimization of enterprise storage solutions, including NetApp, OneFS, or equivalent systems. Ensure virtual and physical infrastructure supports mission performance and scalability. Perform site‑level Cisco networking administration, including VLAN configuration and troubleshooting. Manage server and application certificates, including TLS/SSL certificate lifecycle and issue resolution. Implement, validate, and maintain Security Technical Implementation Guide (STIG) compliance across servers and end‑user devices. Track, remediate, and report Information Assurance Vulnerability Management (IAVM)/Information Assurance Vulnerability Alert (IAVA) compliance status to ensure continued Authorization to Operate (ATO). Support Certification and Accreditation (C&A)/Risk Management Framework (RMF) activities as assigned. Lead system migrations, major hardware and software upgrades, and infrastructure optimization initiatives. Plan and execute migration of servers and technologies to DoD‑approved cloud environments. Support integration of specialized systems, including digital medical and imaging platforms, as required. Develop and maintain system documentation, standard operating procedures (SOPs), diagrams, and configuration baselines. Provide regular status updates and technical reports to the Contracting Officer (COR) regarding system health, risks, and project progress. Compensation & Benefits The annual projected pay range for this position is $93,595 – $108,160 with consideration given to qualifications, experience, responsibilities, and geographic location. Oxley Enterprises, Inc. offers a full array of benefits including: Medical, dental, vision, and prescription drug coverage for you and your family. Life insurance, short‑term disability, and long‑term disability paid for by the Company. Supplemental coverages including Accident, Critical Illness, and Hospital. Additional life insurance coverage for you and your dependents. 401(k) plan with various options to select based on your retirement goals. All qualified applicants will receive consideration for employment without regard to any status protected by applicable federal, state, or local law. #J-18808-Ljbffr