Senior Systems Administrator

NTC OVERVIEW

We are seeking a Senior 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're looking for the best and the brightest to join us in supporting 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.

NT Concepts is seeking a Senior 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.

Active Secret clearance.

Local to the DC Metro Area, Remote Flexible

• 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.
• Implement and 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, Net App, Tintri, and cloud-integrated infrastructure across on-premise and DoD/Navy-approved cloud environments.
• Remediate ACAS findings; apply STIGs; ensure compliance with DoD and Navy cybersecurity requirements.
• Review, test, and apply quarterly OS, Oracle, and application patches; track and remediate vulnerabilities.
• Manage user accounts in Production, QAE, and Staging; administer Jira/Confluence access; reset SFG and privileged accounts.
• Operate and maintain Commvault/Hyperscale backup infrastructure; conduct quarterly DR exercises; manage off-site tape process.
• Manage TLS/SSL certificate lifecycle using Digicert; maintain certificate inventory across all environments.
• Track, renew, and procure software support agreements and hardware (Oracle, Red Hat, F5, Cisco, Commvault, VMware, etc.).
• Prepare monthly Hosting Technical Slides; produce metrics reports; maintain ISCP, SBC, and POAM documentation.
• Execute scheduled and emergency maintenance windows; participate in CMB/System Manager meetings; manage planned and unplanned outages.

• Clearance
  :
  Active Secret clearance.
• Location/Flexibility
  :
  Local to the DC Metro Area or Norfolk, VA area. Remote Flexible. Must be willing to travel to Norfolk, VA as needed.
• Bachelor's degree (BA/BS) in a technical discipline and Minimum of 10 years of relevant IT experience
  , with demonstrated expertise in hosting, systems administration, and enterprise application support in a DoD or similar environment.
• Certification
  :
  Must have or obtain a CompTIA Security+ or DoD 8140-equivalent certification within 6 months of hire.
• Hands‑on experience with SAP Business Objects (BOXI 4.3+) administration on Windows Server.
• Experience with Dynatrace or similar application/infrastructure monitoring tools.
• Experience with 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 and Linux administration.
• Experience with VMware/ESXi, Nutanix, Net App, Tintri (virtualization and storage).
• Experience with Oracle Database patching, configuration, and Audit Vault.
• Experience with Commvault backup and recovery operations.
• Experience with Cisco networking and switch management.
• Demonstrated ability to…