onsite
Senior Systems Administrator - TS/SCI Required - GD Information Technology
Systems Engineer
Senior Systems Administrator with 10+ years of experience managing complex IT infrastructures, ensuring high availability, security, and compliance. Expert in Linux/Windows environments, network administration, and secure system operations under TS/SCI clearance.
About the role
Key Responsibilities
- Design, implement, and maintain enterprise‑grade IT infrastructure, including servers, storage, and networking components.
- Perform proactive monitoring, troubleshooting, and performance tuning to ensure 99.9% uptime.
- Apply security best practices, patch management, and vulnerability remediation in a TS/SCI environment.
- Collaborate with cross‑functional teams to support application deployments, migrations, and disaster recovery plans.
- Document system configurations, procedures, and incident responses for audit and compliance purposes.
Requirements
- Minimum 10 years of hands‑on experience in system administration and IT infrastructure management.
- Proficient with Linux (Red Hat/CentOS) and Windows Server ecosystems.
- Strong knowledge of network protocols, firewalls, VPNs, and virtualization technologies.
- Current Top Secret/SCI clearance and ability to maintain it.
- Excellent problem‑solving skills, attention to detail, and effective communication.
Skills
linuxwindows server