Senior System Administrator

RTXTucson, AZ
Onsite

About The Position

Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods. Working as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS). Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date. Full time 100% Onsite position.

Requirements

  • Typically requires a University degree or equivalent experience and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field.
  • Active and transferable U.S. government issued Secret security clearance is required prior to start date.
  • U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
  • Experience with Windows and/or Linux.

Nice To Haves

  • Experience with Containerization Technologies such as OpenShift, Kubernetes, Docker, Tanzu, and Rancher.
  • Experience with Continuous Integration\Continuous Delivery Tools such as Gitlab, Jenkins, and Azure DevOps
  • Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification).
  • Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF, data storage, NAS, and SAN technologies and solutions.
  • Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods.
  • Experience with Microsoft WSUS, MECM, and/or Exchange.
  • High Performance Computing (HPC) experience in a Linux environment.

Responsibilities

  • Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment.
  • Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.
  • Working as a team member in a fast-paced technological environment.
  • Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
  • Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.

Benefits

  • medical
  • dental
  • vision
  • life insurance
  • short-term disability
  • long-term disability
  • 401(k) match
  • flexible spending accounts
  • flexible work schedules
  • employee assistance program
  • Employee Scholar Program
  • parental leave
  • paid time off
  • holidays
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service