Linux Systems Administrator

Location

• Onsite (100% onsite; closed/secure workspaces)
• Strong preference for local candidates

Clearance Requirement

• Required: Active Secret Clearance
• Strongly Preferred: Active Top Secret
• One role requires ability to obtain TS/SCI

Position Overview

The client is seeking Linux System Administrators to support the development of advanced technologies enabling worldwide networked operations for the U.S. military and government agencies. The team supports next-generation satellite, airborne, and terrestrial network systems, with deep involvement in field experimentation and operational testing.

Required Education

• Bachelor’s Degree in:
• Science
• Technology
• Engineering
• Mathematics
• Or a related technical discipline
• Degree requirements may be waived or modified for candidates with strong technical skills and prior military experience

Must-Have Qualifications

Clearance

• Active Secret Clearance (or higher)

Experience & Technical Skills

Operating Systems

• Red Hat Enterprise Linux – 6+ years
• Ubuntu
• VMware

Hardware (3+ years)

• Dell
• SuperMicro
• Cisco
• Apple
• Intel / AMD

Networking (3+ years)

• TCP/IP
• DNS / DHCP
• NTP
• SSH
• FTP / HTTP / HTTPS
• PXE
• SNMP

Virtualization (3+ years)

• VMware ESXi
• VMware vCenter
• vSAN

Backup & Recovery

• Enterprise backup solutions – 3+ years
• Proven experience protecting mission-critical data

Security & Logging

• Centralized logging and audit capabilities – 3+ years
• Vulnerability remediation (Cat 1, 2, 3 issues)
• RMF-compliant configurations

Programming / Automation (3+ years)

• Ansible
• PowerShell
• Shell scripting

Nice-to-Have Qualifications

Clearance

• Active Top Secret / SCI

Additional Skills

• Python scripting
• Real-time Linux kernels
• System tuning and performance analysis
• Solaris experience
• Docker and/or Podman
• STIG compliance
• Juniper networking experience
• Windows and macOS support

Responsibilities

• Manage, administer, and support all IT infrastructure systems within the group
• Configure and maintain physical and virtual servers and researcher workstations
• Ensure systems are secure, documented, and RMF-compliant
• Perform vulnerability remediation for secure and unclassified systems
• Troubleshoot developer workstations across multiple operating systems
• Support integration of new technologies as adopted by the organization
• Collaborate with researchers to troubleshoot custom applications
• Perform all other related duties as assigned

Required Technical Environment

Hardware

• Dell
• TrueNAS
• NetApp
• Palo Alto

Software & Tools

• RedHat Satellite
• Red Hat Automation Platform
• VMware vCenter / ESXi / vSAN
• GitHub / GitLab
• Nessus / ACAS

Authentication & Identity

• Kerberos
• SSSD
• IDM
• LDAP
• Active Directory

Non-Technical Skills

• Team-oriented and collaborative mindset
• Self-starter capable of working independently
• Strong oral and written communication skills
• Ability to present findings to internal and external stakeholders
• Adherence to laboratory policies and procedures

Certifications (Preferred)

• Red Hat Certification
• VMware Certification
• CISSP
• CompTIA Security+
• Linux Professional Institute Certification (LPIC)
• Prior military experience is a plus

Interview Process

• Initial Zoom screening
• Second-round interview:
• In-person strongly preferred
• Zoom available if necessary

Additional Notes

• This role is 100% onsite
• Candidates must be comfortable working in secure, closed environments