CACI International

Systems Administrator Lead

CACI International$115K — $254K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Active Secret security clearance is mandatory
  • Master's degree in a related field such as Computer Science, Engineering, or Information Systems
  • 10+ years of experience in systems administration
  • Strong proficiency with Windows and/or Linux server environments
  • Hands-on experience with Active Directory, Group Policy, and enterprise identity management
  • Familiarity with network security tools like firewalls and intrusion detection systems
  • Knowledge of cloud platforms (AWS, Azure) and virtualization technologies (VMware, Hyper-V)
  • Proficient understanding of NIST security standards and compliance requirements

Responsibilities

  • Lead the design and management of IT infrastructure solutions
  • Administer Windows and Linux server environments across security enclaves
  • Manage essential network services like DNS and DHCP
  • Implement security compliance practices as per DoD standards
  • Conduct system troubleshooting and incident response
  • Develop and maintain comprehensive system documentation
  • Plan and execute regular system patching and vulnerability remediation
  • Coordinate with cybersecurity teams to manage security controls

Benefits

  • Comprehensive healthcare and wellness programs
  • Financial planning resources and retirement plans
  • Support for family commitments and educational opportunities
  • Generous paid time off and flexible work arrangements
  • Access to development and training resources
Full Job Description
Job Title: Systems Administrator Lead

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:

Lead systems administration efforts for complex Department of Defense IT infrastructure supporting intelligence and mission systems. As a Systems Administrator Lead, you will:
  • Administer and support daily operational requirements of computer network systems including workstations, file servers, web servers, and cloud-based infrastructure
  • Lead the installation, configuration, and maintenance of hardware, software, and systems upgrades across multiple security domains
  • Manage network accounts, network security, and web services for mission-critical systems
  • Implement and maintain network security tools including firewalls, anti-virus, and intrusion detection services
  • Monitor system configuration and performance to ensure optimal operation and availability
  • Provide technical leadership and mentorship to junior systems administrators
  • Interface with government customers, cybersecurity teams, and cross-functional technical staff


Responsibilities:
  • Lead the design, implementation, and management of enterprise-level IT infrastructure solutions
  • Administer Windows and Linux server environments across multiple security enclaves
  • Manage Active Directory, Group Policy, DNS, DHCP, and enterprise identity management systems
  • Implement and enforce Security Technical Implementation Guides (STIGs) and secure configuration baselines
  • Maintain system security compliance with NIST 800-53, Risk Management Framework (RMF), and DoD security requirements
  • Perform system troubleshooting, root cause analysis, and incident response activities
  • Develop and maintain system documentation including standard operating procedures, network diagrams, and configuration management databases
  • Plan and execute system patching, vulnerability remediation, and system hardening activities
  • Manage backup and recovery operations to ensure data integrity and business continuity
  • Coordinate with cybersecurity personnel to implement security controls and respond to security events
  • Lead infrastructure projects including system migrations, upgrades, and technology refresh initiatives
  • Train staff on software applications, systems access, and security best practices
  • Automate routine administrative tasks using PowerShell, Bash, Python, or other scripting languages
  • Support virtualization platforms such as VMware, Hyper-V, or cloud infrastructure (AWS, Azure)
  • Maintain system monitoring and alerting tools to proactively identify and resolve issues


Qualifications:

Required:
  • Active Secret security clearance (required)
  • Master's degree in Electrical Engineering, Electronic Engineering, Computer Engineering, Computer Science, or Information Systems
  • 10+ years of professional experience in systems administration
  • Strong experience administering Windows Server and/or Linux server environments
  • Demonstrated experience with Active Directory, Group Policy, and enterprise identity management
  • Experience with network security tools including firewalls, intrusion detection systems, and anti-virus solutions
  • Knowledge of virtualization technologies (VMware, Hyper-V) and/or cloud platforms (AWS, Azure)
  • Understanding of networking concepts including TCP/IP, DNS, DHCP, routing, and switching
  • Experience implementing STIGs and security compliance requirements for DoD systems
  • Strong troubleshooting and problem-solving skills with ability to resolve complex technical issues
  • Excellent communication skills with ability to explain technical concepts to non-technical stakeholders
  • Demonstrated ability to lead technical teams and mentor junior staff
  • Compliance with Cyber WorkForce (CWF) directives, including any required certifications


Desired:
  • Industry certifications such as CompTIA Security+, Network+, Server+, Linux+, MCSA, MCSE, or RHCE
  • Experience with DoD Risk Management Framework (RMF) and Authorization to Operate (ATO) processes
  • Knowledge of DISA Enterprise Mission Assurance Support Service (eMASS) and Assured Compliance Assessment Solution (ACAS/Nessus)
  • Experience with containerization technologies (Docker, Kubernetes)
  • Familiarity with Infrastructure as Code (IaC) tools such as Ansible, Terraform, or Puppet
  • Experience with scripting and automation using PowerShell, Python, Bash, or similar languages
  • Understanding of DevSecOps principles and CI/CD pipelines
  • Experience supporting intelligence community systems or special access programs
  • Knowledge of Cross Domain Solutions (CDS) and multi-level security architectures
  • Experience with enterprise backup solutions (Veeam, Commvault, etc.)
  • Familiarity with SIEM tools and log aggregation platforms (Splunk, ELK)
  • Previous experience supporting government program offices or defense contractors
  • Experience with configuration management tools (SCCM, Satellite, etc.)


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:
$115,600 - 254,200 USD

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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