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Systems Administrator Lead

Job in Ellicott City, Howard County, Maryland, 21042, USA
Listing for: CACI International
Full Time position
Listed on 2026-09-26
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Salary/Wage Range or Industry Benchmark: 116000 - 254000 USD Yearly USD 116000.00 254000.00 YEAR
Job Description & How to Apply Below

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 andmaintainnetwork security tools including firewalls, anti-virus, and intrusion detection services
  • Monitor system configuration and performance to ensureoptimaloperation and availability
  • Provide technical leadership and mentorship to junior systems administrators
  • Interface with government customers, cybersecurity teams, and cross-functional technical staff
Responsibilities:
  • Leadthe 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
  • Developandmaintainsystem documentation including standard operating procedures, network diagrams, and configuration management databases
  • Planand execute system patching, vulnerability remediation, and system hardening activities
  • Managebackup 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
  • Trainstaffonsoftware applications, systems access, and security best practices
  • Automateroutine administrative tasks using Power Shell, Bash, Python, or other scripting languages
  • Supportvirtualization platforms such as VMware, Hyper-V, or cloud infrastructure (AWS, Azure)
  • Maintainsystemmonitoringand alerting tools to proactivelyidentifyand resolve issues
Qualifications:

Required:
  • Active Secret security clearance (required)
  • Master’sdegree 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
  • Demonstratedability to lead technical teams and mentor junior staff
  • Compliance with Cyber Work Force (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 Power Shell, Python, Bash, or similar languages
  • Understanding of Dev Sec Ops principles  and CI/CD pipelines
  • Experience supporting intelligence community systems orspecial access programs
  • Knowledge of Cross Domain…
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