Cyber Systems Administrator – Level 3 (Secret Clearance)

About the role

The Level 3 Cyber Systems Administrator serves as a senior technical contributor responsible for advanced system administration, infrastructure optimization, incident resolution, and engineering support. This role operates with greater autonomy and supports complex enterprise environments and mission-critical systems.

Responsibilities

• Lead monitoring and health assessments of enterprise infrastructure and mission systems
• Perform advanced troubleshooting of complex system, network, and virtualization issues
• Execute and oversee system patching, maintenance, upgrades, and lifecycle management
• Drive incident response coordination, root cause analysis, and resolution documentation
• Partner with Integrated Product Teams (IPTs) to plan and execute engineering activities
• Provide cybersecurity compliance support and audit readiness assistance
• Identify inefficiencies and implement system performance optimizations
• Mentor junior administrators and support operational best practices
• Contribute to process engineering and infrastructure modernization efforts

Requirements

• Required Education, Certification, Clearance & Technology
• Required Technology Experience:
• Microsoft Endpoint Configuration Manager (MECM): advanced packaging, OS deployment, patch management, troubleshooting DP/client communication issues
• Windows Server Update Services (WSUS): enterprise administration, synchronization, approval workflows, MECM integration
• VMware vSphere/ESXi: advanced administration including clusters, HA/DRS, performance tuning, virtual networking
• Windows Server 2016–2025 and Windows 11 enterprise administration
• Active Directory architecture, DNS, Group Policy design and troubleshooting
• Powershell and Bash scripting for automation and system management
• Monitoring, logging, and performance analysis tools
• Experience supporting large-scale enterprise or mission-critical infrastructure
• Experience Requirements
• 5+ years of relevant experience (Master’s degree may substitute for up to 2 years)
• Preferred Qualifications
• PKI / Certificate Services (ADCS, certificate automation, OCSP, CRLs, TLS infrastructure)
• Ansible automation, CI/CD pipelines, and infrastructure-as-code implementation
• Microsoft Exchange hybrid or enterprise environments
• Experience leading technical initiatives or infrastructure projects
• Strong root cause analysis and systems engineering experience

Benefits

MILVETS offers an excellent benefits package including Health Insurance, Dental Insurance, Life Insurance, Disability Insurance, Vision, 401(k), Paid Time Off.

Equal Employment Opportunity

MILVETS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.