System Administrator

At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.

Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.

Requisition #: 1297

Job Title:

System Administrator

Location:

Quantico, VA or Fredericksburg, VA

Clearance Level: Active Top Secret Required and pass CI Polygraph upon hire

Required Certification:
Red Hat Certified System Administrator (RHCSA) or Microsoft Certified:
Windows Server Hybrid Administrator Associate

Agile Defense is seeking a Senior Systems Administrator to join our team supporting a mission‑critical federal law enforcement agency. In this role, you will help architect and maintain secure, high‑availability systems that directly enable national criminal justice operations. You’ll play a hands‑on role in engineering, integration, deployment, testing, and maintenance of infrastructure and software. You will be responsible for core services of a large hybrid intranet environment hosting a variety of network monitoring, security, and logging services for which you will be responsible.

Operational duties will include end user support for operating systems and proprietary applications, administration and development of critical services, and providing support and guidance to junior staff.

This position offers the opportunity to engage with a wide range of technical challenges—from virtualization to scripting to system interoperability while supporting law enforcement professionals in the field and across the nation.

• Develop and administer advanced Linux‑based solutions to include local repository management, email services, active directory integration, application development, and Enterprise‑wide log collection, monitoring, and analysis.
• Deploy and maintain multiple database servers for application support across enterprise, as well as enterprise endpoint management solution to address configuration and patch management software deployment in a multiple‑operating system environment.
• Assist in the development and implementation of web‑based applications and databases employing current technologies and methodologies; unique monitoring solution including hardware and software sensors (power, environment, etc.) that integrate with alerting systems, strategies, and methods for improving reliability and efficiency of hardware and software provisioning and deployment.
• Develop methods for deploying development environments that mirror production environments for risk mitigation in test and evaluation of software and hardware solutions.
• Security administration and compliance monitoring through Splunk Enterprise to maintain forwarders, indexers, and search heads and development of executive‑level dashboards and reports and Tenable SC/Nessus to scan and report vulnerability and security compliance issues.
• Documentation of Standard Operating Procedures (SOPs) through development of protocols, policies, and regulations implemented through ticket system solutions knowledge base, wiki documentation, and process checklists.
• Provide networking configuration and maintenance support to include basic switch and router troubleshooting, configuration, cable routing and termination.
• Support system administrative tasks to include server and workstation hardware installation, troubleshooting and upgrading, operating system and software test and evaluation, and enterprise‑wide PKl certificate management.
• Operations and maintenance (O&M) of core physical and virtual server environments through extensive use of VMware ESXi and related technologies.
• Enterprise endpoint monitoring through integration and management of all network, server, and workstation assets in Network Monitoring System.
• Change Management administration using enterprise ticket system to track issues…