Demo

Senior Linux/Unix Systems Engineer

Protos IT
Washington, DC Full Time
POSTED ON 9/17/2026
AVAILABLE BEFORE 10/16/2026

Job Title: Systems Administrator III (Senior Linux/Unix Systems Engineer)

Location: Washington DC

Duration: 6 Months contract to fulltime hire

Required Qualifications

  • Bachelor s degree in computer science, information systems, engineering, or a related technical field, and eight (8) or more years of progressive Linux/Unix administration and engineering experience. Equivalent additional experience may substitute for the degree.
  • A minimum of three (3) years performing at a senior, lead, or principal level with design and architecture ownership for an enterprise Linux environment.
  • Senior-level RHEL administration and engineering; working knowledge of Oracle Linux.
  • Demonstrated experience designing and implementing enterprise automation and configuration management (Ansible or Ansible Automation Platform, Red Hat Satellite, or comparable tooling).
  • Demonstrated experience planning and executing major operating system version migrations or platform modernization efforts.
  • Solid understanding of networking protocols (TCP/IP, DNS, HTTP/HTTPS, VPN, and related).
  • Experience with virtualization technologies (VMware, Hyper-V, and comparable platforms).
  • Expertise in shell and scripting languages (Bash, Python) applied to automation, remediation, and troubleshooting.
  • Experience with version control tools such as Git, including version control of infrastructure and configuration artifacts.
  • Working knowledge of cloud infrastructure (AWS or Azure) and of on-premises to cloud migration approaches.
  • Applied knowledge of system security engineering, including CIS and STIG hardening, vulnerability management, and federal compliance frameworks (FISMA, NIST SP 800-53).
  • Demonstrated ability to complete technical projects independently, with strong organizational skills and attention to detail.
  • Strong problem-solving skills and excellent written and oral communication skills.

Required Certifications

  • Red Hat Certified System Administrator (RHCSA).

Salary : $60 - $70

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