onsite
Senior Systems Administrator - GD Information Technology
Systems Engineer
Lead and maintain complex IT infrastructure, ensuring high availability and security across Linux and Windows environments. Leverage deep system administration expertise to support mission‑critical operations and uphold stringent security clearances.
About the role
Key Responsibilities
- Design, implement, and manage scalable Linux and Windows server environments, ensuring optimal performance and reliability.
- Perform proactive monitoring, troubleshooting, and patch management to maintain system integrity and uptime.
- Collaborate with cross‑functional teams to deploy and support applications, services, and security controls.
- Document configuration changes, procedures, and incident responses in compliance with security policies.
- Assist in the development and enforcement of IT security standards, including access controls and audit procedures.
Requirements
- Minimum 5 years of experience in systems administration within a complex enterprise environment.
- Strong proficiency with Linux (Red Hat/CentOS) and Windows Server platforms.
- Hands‑on experience with virtualization, networking, and backup solutions.
- Excellent problem‑solving skills and ability to work independently under tight deadlines.
- U.S. citizenship and current Top Secret SCI Polygraph clearance (or ability to obtain).