Sr. Linux System Administrator

4 weeks ago


Annapolis Junction, United States Reflexive Concepts Full time

Reflexive Concepts is seeking a Sr. Linux Administrator to join our team Specifically, we're looking for someone who will be supporting an enterprise wide mission environment and has the following: 

  • Minimum of 10 years experience as a Linux System Admin / Eng.
  • Linux - (CentOS/RHEL) Linux admin certification desired
  • Extensive experience installing, configuring, maintaining JBoss / Wildfly
  • VMWare VM creation, configuration, and operation experience
  • Security + 2 / IAT 2 certification
  • Highly Desire:  Experience with RH Ansible
Other Desired Experience:
  • Storage 
    • Management (ex LG, PV, LVM
    • Protocols (ex NFS, SAMBA, ISCSI)
    • SAN Storage configuration
    • Understanding of network storage (ex. NAS and SAN)
  • Networking 
    • Understanding of networking concepts and principles
    • Routing, IPSec
  • Security Compliance 
    • YUM Patching
    • IAVA Remediation
    • Server certificate management
    • Automation (ex. Ansible, Puppet, SALT)
    • SELinux
  • Authentication 
    • Users and Group Management
    • Understanding of Active Directory and DNS
    • User certificate management
  • Scripting: Shell, Python preferred
  • Physical Server Administration
Other Desired Skills, Education, or familiarization
  • Oracle Database and possibly some DBA experience
  • JavaScript Object Notation (JSON)
Qualifications: 
  • Minimum General Experience: At least ten (10) years developing and delivering IT Architectures or IT systems design/ engineering services or supported that activity with an organization.
  • Functional Responsibility:
    • Provides architecture and business consulting services.
    • Functions as lead consultant and project manager on technically complex projects.
  • Minimum Education: A BS in Computer Science, or related discipline, or equivalent years of experience.


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