Systems Administrator

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

Job summary

CA**CI** seeks a Systems Administrator to join our IT team supporting a mission-critical government program at Fort Belvoir. You will administer, configure, and manage servers, storage, virtualization, and network infrastructure to ensure reliable, secure operations and performance.

The role requires a Secret clearance, a Bachelor's degree in Computer Science or Information Technology, 5+ years of experience, and hands-on Linux/Windows administration.

Qualifications

• Active Secret Clearance required.
• Bachelor's degree in Computer Science, Information Technology, or related field.
• 5+ years of experience in systems administration, infrastructure management, or related technical discipline.
• Experience supporting U.S. military, DoD, Intelligence Community, or government customers.
• Strong problem-solving and communication skills.
• Extensive Linux and Windows server administration experience.
• Knowledge of storage, backup, and disaster recovery.

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, ensuring security and user access.
• Apply security patches and OS upgrades to maintain security and integrity.

Skills

Linux administration

Windows administration

Network administration

Security patch management

Customer-facing communication

Clearance due to DoD work

Problem-solving

Security compliance

Education

Bachelor's degree in Computer Science or Information Technology

Tools

VMware

Hyper-V

Job description

Job Title: Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local

The Opportunity:

We are seeking a highly capable IT Infrastructure professional to join our team supporting a mission‑critical customer program. This is an opportunity to work in a dynamic environment where reliable, secure, and resilient infrastructure is essential to the success of the mission. You will administer, configure, and manage servers, storage systems, virtualization platforms, and network infrastructure to ensure appropriate function of hardware, software, and system specifications. You will play an important role in ensuring the availability, performance, security, and integrity of the infrastructure supporting the customer’s mission. This role is well suited for someone who wants to take ownership of critical infrastructure, work alongside experienced technical teams, and contribute directly to a mission where technical excellence, reliability, and security matter every day.

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 using systems analysis techniques and procedures. Provide system administration for assigned infrastructure and establish and maintain security as it relates to users
• Apply security patches and operating system upgrades to ensure the security and integrity of the technical environment

Configuration & Deployment:

• Configure and deploy Windows and Linux‑based servers, workstations, and supporting infrastructure
• Implement and maintain virtualization platforms for various applications and services
• Establish and maintain system configurations to meet technical and business requirements

Security & Compliance:

• Work closely with the cybersecurity team to maintain seamless system operations while adhering to security protocols
• Implement security controls and access management for user systems and infrastructure
• Ensure compliance with established security standards and procedures

Infrastructure Projects & Documentation:

• Support new infrastructure projects from planning through implementation
• Maintain all configuration documentation for assigned infrastructure
• Develop standard operating procedures, system configuration guides, and technical documentation
• Establish operational plans for technical areas and implement best practices

Problem Resolution & Analysis:

• Diagnose complex problems spanning servers, operating systems, storage, networking, and hardware
• Use systems analysis techniques to ensure appropriate function of system specifications
• Provide on‑site and remote technical support to resolve infrastructure issues
• Coordinate with various teams to resolve technical and operational challenges

Stakeholder Communication:

• Present system capabilities and infrastructure solutions to technical and business stakeholders
• Communicate with executive leadership on matters of technical importance
• Provide feedback to improve infrastructure functionality and efficiency

Qualifications:

Required:

• 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

Desired:

• Experience developing standard operating procedures, system configuration guides, and technical documentation.
• Experience establishing operational plans for technical areas and implementing best practices.
• Experience diagnosing complex problems spanning servers, operating systems, storage, networking, and hardware.
• Experience presenting system capabilities and infrastructure solutions to technical and business stakeholders.
• Experience coordinating with various teams to resolve technical and operational challenges.
• Experience with Linux and Windows server/workstation administration and troubleshooting experience
• Knowledge of virtualization technologies (VMware, Hyper‑V, or similar platforms)
• Strong understanding of TCP/IP networking, routing, switching, firewalls, and network services
• Experience with security patch management, system hardening, and security compliance

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high‑performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range:

The proposed salary range for this position is:

$86,600 - $181,800

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.