Sr. Linux Systems Admin

Required Qualifications:
5+ years of experience and a bachelor’s degree in a related technical field (e.g., IT, computer science, information systems, engineering, or related field) or 10+ years of experience in lieu of a degree
Experience administering enterprise Linux systems (e.g., RHEL 7/8/9, Ubuntu 22/24)
Experience administering virtualization platforms such as VMware vSphere, Red Hat Virtualization (RHV), including VM provisioning, resource allocation, and basic performance tuning
Experience with LDAP solutions such as Microsoft Active Directory and FreeIPA
Strong Linux security skills including system hardening, patch management, user management, and configuration management
Familiarity with monitoring and alerting tools (e.g., Elasticsearch, Logrhythm, Prometheus, Grafana) for proactive system management
Proficiency with package management tools (YUM, DNF, RPM, APT) and maintaining repositories in offline or air-gapped environments
Experience with automated deployment and infrastructure as code tools (e.g., Ansible, Puppet, Terraform)
Familiarity with container concepts and basic experience with container tools such as Docker or Podman
Excellent verbal and written communication skills with ability to document and collaborate effectively
Must be willing to travel when required (2-3 times annually)
Active CompTIA Security+ CE or equivalent certification that meets or exceeds DoD 8570 IAT Level II (or be able to obtain within a maximum of 30 days after hire)
 
Preferred Qualifications:
10+ years of experience and a bachelor’s degree in a related technical field (e.g., IT, computer science, information systems, engineering, or related field) or 15+ years of experience in lieu of a degree
Advanced experience with virtualization platforms such as Red Hat Virtualization (RHV), VMware vSphere, including VM provisioning, resource allocation, snapshots, and performance tuning
Familiarity with databases (e.g., Postgres, MySQL) and Linux web services (e.g., Apache, Nginx)
Proficiency in one or more scripting language
Practical experience deploying and supporting Virtual Desktop (VDI) solutions (e.g., Leostream/HP Anyware, VMware Horizon, Citrix) and Trusted Thin Client, including image management and troubleshooting
Understanding of information systems security best practices, DoD security requirements, and use of security tools such as Nessus, SCAP, and applying STIGs
RHCSA and Red Hat Certified OpenShift Administrator certifications