CACI International

Senior Systems Administrator

CACI International$86K — $181K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Active Secret Clearance required
  • Bachelor's degree in Computer Science, IT, or related field
  • 5-10+ years in systems administration or infrastructure management
  • Strong problem-solving skills for troubleshooting
  • Experience supporting U.S. military or government customers
  • Extensive admin experience with Linux and Windows systems
  • Deep knowledge of virtualization technologies like VMware or Hyper-V
  • Strong understanding of TCP/IP networking and security compliance
  • Ability to work independently with minimal supervision

Responsibilities

  • Administer and manage IT infrastructure, including servers and storage systems
  • Analyze and resolve issues with IT hardware and software
  • Apply security patches to maintain system integrity
  • Configure and deploy Windows and Linux servers and workstations
  • Implement and maintain virtualization platforms
  • Work with cybersecurity to ensure secure operations
  • Support infrastructure projects from planning to implementation
  • Maintain configuration documentation and develop operating procedures
  • Diagnose complex infrastructure problems and provide technical support
  • Communicate system capabilities to stakeholders and improve functionality

Benefits

  • Healthcare and wellness support
  • Financial and retirement benefits
  • Family support programs
  • Continuing education opportunities
  • Generous time off policies
Full Job Description
Job Title: Senior Systems Administrator

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage 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:
Infrastructure Administration & Support:

  • 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
  • 5-10+ 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
  • Deep 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
  • Knowledge of storage systems, backup solutions, and disaster recovery procedures
  • Ability to work independently with minimal supervision
  • Ability and willingness to travel to customer

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Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$86,600 - $181,800

About CACI International

CACI International Inc is a multinational professional services and information technology company. It provides services to many branches of the federal government including defense, homeland security, intelligence, and healthcare. CACI has approximately 23,000 employees worldwide. The company's mission is to provide enterprise and mission technology services and solutions that best fit the needs of its customers. CACI has been named a Fortune World's Most Admired Company, a Washington Post Top Workplace, and a Forbes Best Employer for Diversity.
Learn more about CACI International
Size
22,000 employees
Market Cap
$7.1 billion
Industry
Net Income
$374.4 million
Founded
1962
5 Year Trend
+7.3%
Revenue
$5.8 billion
NASDAQ

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