Mission-Critical Systems Administrator (Secret Clearance)

CACI International Inc.; Fort Belvoir (VA); On-site; USD 87,000 - 182,000; Full time

Job summary

CACI International Inc. is seeking a Systems Administrator to manage and secure mission-critical IT infrastructure at Fort Belvoir.

The role requires administering servers, storage, and virtualization, ensuring availability, performance, and security for the customer’s mission. You will collaborate with cybersecurity and engineering teams, implement patches, and deploy configurations across Windows and Linux, with up to 10% travel to client sites.

Qualifications

• Active Secret Clearance.
• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 5+ years of relevant experience in systems administration, infrastructure management, network administration, or a related technical discipline.
• Strong problem-solving skills to troubleshoot infrastructure hardware and software issues.
• Demonstrated experience supporting U.S. military, DoD, Intelligence Community, or other government customers.
• Strong customer-facing communication and presentation skills.
• Extensive Linux and Windows server/workstation administration and troubleshooting experience.
• Knowledge of storage systems, backup solutions, and disaster recovery procedures.
• Ability to work independently with minimal supervision.
• Ability and willingness to travel to customer sites.

Responsibilities

• Administer and manage IT infrastructure including servers, storage systems, virtual platforms, and network connectivity.
• Analyze, troubleshoot, and resolve issues with IT hardware and software infrastructure.
• Provide system administration and maintain security for assigned infrastructure.
• Apply security patches and OS upgrades to ensure security and integrity.
• Configure and deploy Windows and Linux servers and supporting infrastructure.
• Establish and maintain system configurations to meet requirements.
• Work with cybersecurity to maintain secure operations and controls.
• Develop SOPs, system configuration guides, and technical documentation.
• Provide on-site and remote support and coordinate with teams to resolve issues.

Skills

5+ years experience

Problem solving

Customer-facing comms

Independent work

Willingness to travel

Education

Bachelor's degree in Computer Science or related field

Tools

Linux

Windows Server

Storage systems

Backup & DR

Virtualization (VMware/Hyper-V)

TCP/IP networking

Job description

CACI International Inc. is seeking a Systems Administrator to manage and secure mission-critical IT infrastructure at Fort Belvoir.

The role requires administering servers, storage, and virtualization, ensuring availability, performance, and security for the customer’s mission. You will collaborate with cybersecurity and engineering teams, implement patches, and deploy configurations across Windows and Linux, with up to 10% travel to client sites.