Lead Systems Administrator

Vienna, VA Position Title: Lead Systems Administrator Overview We are seeking a Lead Systems Administrator to join our team. Working at NT Concepts means that you are part of an innovative, agile company dedicated to solving the most critical challenges in National Security. We are looking for the best and the brightest to support this mission. If meaningful work, initiative, creativity, and continuous self-improvement are important to your career, join our growing team and discover what's next for you. Mission Focus NT Concepts is seeking a Lead Systems Administrator to support the DoD enterprise Military Housing system. This complex system of 34 web-based modules is used by over 10,000 active users to meet the housing needs of over 2.5 million service members, DoD civilians, and their families. Clearance: Active Top-Secret clearance Location/Flexibility: Local to the DC Metro Area, Remote Flexible Responsibilities Ability to manage a team of network engineers, system administrators and interface with off-site hosting group to maintain, troubleshoot, and manage upgrades to an enterprise application system. Serve as the primary administrator for SAP Business Objects (BOXI) on Windows Server, including installation, configuration, patching, upgrades, troubleshooting, and performance monitoring. Support and maintain Dynatrace for application and infrastructure monitoring; configure dashboards, alerts, and integrations; analyze performance data and assist with incident root cause analysis. Support DNS changes as required for application and infrastructure needs; coordinate with network teams to ensure proper DNS resolution and network connectivity. Support Splunk SIEM for log aggregation, monitoring, and security compliance; maintain forwarders, indexes, and dashboards; assist with log analysis for troubleshooting and audit purposes. Provide backup support for F5 Big-IP/Big-IQ load balancer administration, including configuration changes, SSL certificate management, and troubleshooting application delivery issues. Administer Windows/Linux servers, VMware/ESXi, Nutanix, NetApp, Tintri, and cloud-integrated infrastructure across on-premise and DoD/Navy-approved cloud environments. Ensure ACAS findings are remediated; STIGs applied; and cybersecurity compliance is maintained in accordance with DoD and Navy cybersecurity requirements. Ensure Oracle quarterly patches are reviewed, tested, and applied in timely fashion; track and remediate vulnerabilities. Oversee the management of user accounts in Production, QAE, and Staging; Jira/Confluence access; reset SFG and privileged accounts. Ensure the management and maintenance of Commvault/Hyperscale backup infrastructure; conduct quarterly DR exercises; manage off-site tape process. Ensure the management and updates of TLS/SSL certificate lifecycle using Digicert; maintain certificate inventory across all environments. Track, renew, and procure software support and support agreements and hardware replacements (Oracle, Red Hat, F5, Cisco, Commvault, VMware, etc.). Ensure reporting is on time: Prepare monthly Hosting Technical Slides; produce metrics reports; maintain ISCP, SBC, and POA&M documentation. Ensure the execution of scheduled and emergency maintenance windows; manage planned and unplanned outages. Participate and present during CMB & System Manager meetings. Qualifications Location: Must be located in or willing to relocate to Washington, DC or Norfolk, VA. Travel: Requires occasional on-site presence and travel to the Norfolk, VA office as business needs dictate. Clearance: Active Top-Secret clearance (or higher) required. Minimum Experience: Bachelors degree (BA/BS) in a technical discipline & 10 years of relevant IT management experience, with demonstrated expertise in hosting, systems administration, and enterprise application support in a DoD or similar environment. Ability to manage a team of network engineers, system administrators and interface with off-site hosting group. Expert experience with SAP Business Objects (BOXI 4.3+) administration and Windows Servers. Experience with Dynatrace or similar application/infrastructure monitoring tools. Knowledge of Splunk administration and log analysis. Experience with DNS management and network troubleshooting. Experience with F5 Big-IP/Big-IQ or similar load balancer technologies. Strong experience with Windows Server. Knowledge and experience with Linux administration. Experience with VMware/ESXi, Nutanix, NetApp, Tintri (virtualization and storage). Experience with Oracle Database patching, configuration, and AuditVault. Experience with Commvault backup and recovery operations. Experience with Cisco networking and switch management. Demonstrated ability to ensure management of DoD STIG compliance and remediate ACAS vulnerabilities. Knowledge of Jira and Confluence administration. Knowledge of certificate management (Digicert or equivalent). Familiarity with DoD cybersecurity frameworks and IA processes. Experience with DoD procurement processes (PR/ITPR submissions). Strong technical writing skills for documentation and reporting. Preferred Qualifications Experience supporting DoD or Navy IT systems. Familiarity with eMH (enterprise Military Housing) or similar enterprise systems. DoD 8570/8140 compliance (e.g., Security+, CISSP, or equivalent). Experience with Azure or other DoD-approved cloud environments. Familiarity with Camunda, RSA, Agiloft, or Dynatrace. Certification Requirements Must have or obtain a CompTIA Security+ or DoD 8140-equivalent certification within 6 months of hire. Physical Requirements Prolonged periods sitting at a desk and working on a computer. Must be able to lift up to 50 pounds at time. Equal Opportunity We are proud to be an Equal Opportunity/Affirmative Action (Minorities/Female/Individuals With Disabilities/Protected Veterans), VEVRRA Federal Contractor. Contact us if you need a reasonable accommodation for any part of the employment process. All resumes are held in confidence. NT Concepts participates in E-Verify. Compensation

$120,336 - $180,504 USD