Systems Administrator Lead

About this role

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.) 

-

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

Similar jobs

• Systems Engineer Lead — CACI · Aberdeen Proving Ground, MD
• Systems Administrator — Accenturefederalservices · Annapolis Junction, MD
• Systems Administrator — Pingwind · Shaw AFB, SC / Kuwait
• Systems Administrator — Pingwind · Chicago, Illinois
• Systems Administrator — Mks2technologies · Palo Alto, CA
• Systems Administrator — Christfellowship · Palm Beach Gardens, FL
• Systems Administrator — Avav · Albuquerque, NM
• Systems Administrator — Generalmatter · Los Angeles, CA