Company Overview

For 29 years, clients in the private and public sectors have relied upon SOS International LLC (SOSi) for critical operations in the world’s most challenging environments. SOSi is privately held, was founded by its current ownership in 1989, maintains corporate headquarters in Reston, VA, and specializes in providing logistics, construction, training, intelligence, and information technology solutions to the defense, diplomatic, intelligence and law enforcement communities.

All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.

5-181108-8024: Associate Unix Systems Administrator
LocationU.S. - Arizona - Fort Huachuca
Open Date11/9/2018

STG, Inc., a wholly owned subsidary of SOSi is seeking an Associate Unix Systems Administrator to support the UNIX team in Ft. Huachuca, AZ.  The ideal candidate will possess some experience in RedHat Linux/ Unix Systems Administration.


  • RedHat Linux/ Unix Systems Administrator supporting a 24x7 enterprise support organization. This position will consist of daily maintenance of RedHat Linux and Solaris UNIX systems
  • Installing, configuring, and maintaining servers using the RedHat Linux and or Solaris operating system based on internally developed processes
  • Monitoring log files, performance issues, and the production environment for mission critical systems
  • Participate in an on call rotation for UNIX/Linux support issues
  • Follow standard operating procedures to ensure the security posture of the environment
  • Engaging in continuous learning to stay abreast on new and emerging technologies that relate to the Linux environment
  • Work independently as well as with a team member
  • Ability to set priorities and organize work to meet deadlines
  • Ensure compliance with established standards, policies, and configuration guidelines
  • Maintain a cooperative working relationship with those contacted during the course of the work day  
  • Ability to obtain and maintain a Secret Security Clearance (interim required prior to start)
  • HS +2 yrs of Information Technology (IT) experience, or AA/AS +0 at minimum
  • Security+CE certification (or equivalent IAT II) required at start date
  • RHCSA or Oracle Certified Associate certificate required within 180 days of hire
  • Secret clearance or ability to obtain interim
  • Ability to perform on-call and after duty hours as needed
  • Ability to learn and work within the UNIX environment
  • An ability to communicate effectively both orally and in a written form with users and office staff
  • Work independently and within a team structure
  • An ability to set priorities and organize work to meet deadlines


  • Server Administration experience
  • Familiar with the UNIX environment
  • VI Editor experience


  • Work environment is normal office setting