Sr. Systems Administrator

Dulles, VA, 1099, W2

Our Client is supporting a U.S. Government customer on a large mission critical development and sustainment program to design, build, deliver, and operate a network operations environment, including introducing new cyber capabilities to address emerging threats. The Client is seeking a Sr. Linux Systems Administrator to support the design, development, and deployment of advanced cybersecurity capabilities. The Sr. Systems Administrator applies expert knowledge in Linux/Unix environments for infrastructure support to an advanced cybersecurity environment. Works with a team of highly skilled administrators to provide senior level administrative expertise for an RHEL environment. Mentors junior system administrators and recommends design changes to improve the system operability.


  • Secret Clearance (able to obtain a TS/SCI)
  • Must be able to obtain DHS Suitability
  • Bachelor’s degree in Systems Engineering, Computer Science, Information Systems or related technical field. Two years of related work experience may be substituted for each year of degree level education.
  • 6+ years of system administration in Linux, ideally Red Hat Enterprise Linux version 7 or 8 (RHEL7 / RHEL8) with the ability to engineer, install, administer and maintain complex system architectures
  • Experience with Linux OS installation, security hardening, and maintenance
  • Experience with administration and management of Linux servers to include installation, configuration, optimization, backup & recovery
  • Experience with Linux performance tuning & troubleshooting, identifying and resolving contention in CPU, memory, networking, disk I/O, etc.
  • Skilled in Linux-related scripting (Bash, Perl, Python, etc.)
  • Experience with products such as Red Hat Satellite Server, Puppet, Chef and/or Ansible
  • Ability to manage changes to system and assesses the security impact of those changes
  • Integration & implementation experience with various services, LDAP, Samba, NFS, Bind, Apache, and other core technologies
  • Familiarity with configuration management
  • Strong research, analytical, and problem solving skills
  • Good communication skills including preparing and presenting results, findings and alternatives and influencing management decision making based on the best available data

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