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Linux Systems Administrator

TekStream Solutions
Arlington, VA
  • Posted: over a month ago
  • $95,000 to $150,000 Yearly
  • Full-Time
  • Benefits: 401k, dental, life insurance, medical, vision,
Job Description

TS/SCI Required


We are seeking a Linux administrator to work in the Network Operation Center (NOC) within the CESO environment.


With the CESO program, the Defense Information System Agency (DISA) is looking to transform the existing Secure Web Services (SWS) environment, which provides secure information sharing to the community, into a more mature service offering to meet the DoD and intelligence communities. As part of this task order, will manage the commercial cloud migration and disestablishment of legacy systems, fully automate the continuous development & continuous integration environment, fourth estate consolidation, professionalize services – ITIL/DevSecOps based processes, improve the customer experience 1st call resolution, and achieve development of a service catalog for Defense Working Capital Fund (DWCF) Model.


This position is in either Alexandria, VA, or Arlington, VA with occasional/situational travel.


  • Work to address End-user issues as Tier II ticket are escalated within ITSM.
  • Install patches and perform routine maintenance as required in support of security and O&M maintenance requirements.
  • Monitor environment for system anomalies and performed root cause analysis as required.
  • Document all changes to the test, operational and cloud environments in compliance with customer and DOD practices.
  • Implement Engineering Implementation Plans (EIPs) in support of change control process and system enhancements.
  • Work to maintaining highly secure in compliance with all DoD security requirements.

Required Experience/Qualifications

  • Bachelor’s Degree and 2-4 years of experience working operational Linux environments. Additional years of experience considered in lieu of degree.
  • IAT Level II Baseline Certification (e.g. CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP)
  • Experience with Creating, modify, troubleshooting end user accounts.
  • Experience with REDHAT Linux and variant operating systems.
  • Highly proficient in shell scripting and Linux CLI environments.
  • Experience using shell scripting to facilitate repeatable processes.
  • Have a working knowledge of SELINUX and intermediate expertise in configuring and maintaining.
  • Have working knowledge of Ansible and how to leverage to secure operating system, along with maintain CM baselines.
  • Working knowledge of AWS cloud environments.

Preferred Experience/Qualifications

  • Prior experienced with DISA and DISA’s support to mission partners
  • TS/SCI w/CI Poly Preferred

Special Requirements/Security Clearance

  • Active TS/SCI with the ability to obtain and maintain a CI Poly
  • This position does not require COVID-19 vaccinations or boosters; vaccination requirements and testing are subject to the status of the federal contractor mandate and customer site requirements; testing is at the cost of the employee.

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We provide a broad range of hardware, software, engineering, and IT integration services. Headquartered in Tysons, VA, we support defense, civilian, commercial, and health IT customers worldwide. We offer an excellent benefits package that includes: medical, dental, vision, life and disability insurance, paid time off, paid holidays, and 401(k) match.

An Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

TekStream Solutions


Arlington, VA



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