Job Title : Linux Systems Administrator
Location : Linthicum, MD (On-site, Full-Time)
Clearance Required : Active / current DoD security clearance or ability to obtain one
Job Overview :
Client is seeking a skilled Linux Systems Administrator to join a dynamic team in Linthicum, MD. This on-site role involves managing secure, multi-user systems in a classified environment, supporting Linux platforms.
Must have skills -
A Linux Systems Administrator with hands-on RHEL setup experience, STIG compliance, virtualization (VMware), and Security+ CE (or IAT Level 2) certification; Windows experience is a plus.
Key Responsibilities :
- Administer and maintain Linux (RHEL) and Windows systems in an Active Directory environment
- Ensure strict compliance with Information Systems Security (ISS) guidelines
- Perform system updates, backups, and recovery operations
- Troubleshoot hardware / software issues and support end users
- Manage user accounts, permissions, and security groups
- Create and maintain system documentation and technical procedures
- Collaborate with vendors and internal teams for system enhancements
- Prepare and maintain security documentation in support of IA team
- Recommend and implement system and network improvements
- Support multiple networks and ensure operational continuity
Basic Qualifications :
Associate's degree + 7 years, or Bachelor's + 5 years, or Master's + 3 years (or High School + 9 years)Active / current DoD security clearance (or willingness to obtain)DoD 8570 / 8140 compliant security certification (e.g., Security+, CISSP, CASP) or ability to obtain within 6 monthsExperience managing RHEL systems in an AD environmentStrong troubleshooting and independent problem-solving skillsPreferred Qualifications :
Bachelor's or Master's degree in Information Systems or related fieldActive Secret or Top Secret clearanceExperience with :NISPOM, RMF, STIG, or JSIG environments
Windows Server and AD domain administrationNetworking fundamentals (subnets, VLANs, routing; Cisco experience a plus)Virtualization (VMware), Red Hat Satellite, SAN / NAS systemsScripting (Bash, Python, PowerShell), DevOps tools (Docker, GitLab, Kubernetes)Security tools (HBSS, Splunk, SolarWinds)System image deployment and certification / accreditation processes