Linux Systems Administrator-Senior

4 weeks ago

Vicksburg, Mississippi, United States IMRI Full time
Job Title: Senior Linux Systems Administrator

We are seeking a highly skilled Senior Linux Systems Administrator to join our team at IMRI. As a key member of our IT department, you will be responsible for ensuring the smooth operation of our multi-user computer systems, including Linux-based application and license servers, virtual machines, and GP/GPU cluster-based systems.

Key Responsibilities:
  • Collaborate with network administrators to perform a wide range of system administration tasks.
  • Provision, patch, and troubleshoot Red Hat Virtual and physical Linux systems.
  • Manage STIGs and ensure compliance with DoD standards.
  • Develop and maintain system documentation, tune system performance, and install system-wide software.
  • Participate in the installation, integration, acceptance testing, and on-going maintenance of our HPC systems and software environment.
  • Assist with forecast resource limitations and provide recommendations for increasing the efficiency of our resources through proper scheduling and load balancing techniques.
Requirements:
  • Bachelor's degree and at least 5 years of experience in Linux system administration.
  • DoD 8570 certification - Security + and OS cert, Linux+, RedHat, etc.
  • Willingness to occasionally work after hours and/or respond to emergency situations for problem resolution.
  • General knowledge of Linux and general Unix operating systems concepts as well as systems administration experience.
  • Ability to develop and maintain documentation on system administration procedures for routine and complex tasks.
  • Ability to create and maintain Information Assurance (IA) compliance documentation of the Information System.
Preferred Qualifications:
  • Experience with compiling, installing, and porting software.
  • Ability to understand application scaling issues related to problem resolution, algorithm choice.
  • Experience with Storage Architectures: SAN, SAS, FC, SATA, Bandwidth, Performance.
  • Ability to manage development of appropriate application benchmarks, analyze results and determine optimal configurations for processor type/speed, size of memory/cache, and memory interconnect fabric for customer problem domains.
  • Familiarity with multi-factor authentication platforms and solutions, and Identity Management such as OpenID, LDAP, and Kerberos.
  • Security implementations using multi-factor authentication, PKI, or Kerberos and Unix.
  • OS hardening to DoD STIG standards.
  • Experience programming or troubleshooting Python code.
  • Experience with supporting Apache Web Server.
  • Experience with Zabbix.
  • Experience with Red Hat Satellite or Red Hat Identity Manager.
  • Experience with BIND DNS.
  • Experience with Ansible.
  • Experience with Gitlab.
Benefits:

IMRI offers top-tier benefits that include: medical coverage through nationally recognized carriers, ancillary coverages, paid vacation and sick leave in compliance with all state and local laws, 401(k) with company match, company paid life insurance and LTD, and several additional voluntary coverages.

Pay will be commensurate with the experience, skills, and qualifications that the candidate brings to the position.

Equal Employment Opportunity:

IMRI is an Equal Employment Opportunity employer committed to maintaining a non-discriminatory, diverse work environment.

In accordance with Title VII of the Civil Rights Act of 1964, Section 503 of the Rehabilitation Act of 1973, Vietnam Era Veteran's Readjustment Assistance Act of 1974 (VEVRAA), Americans with Disabilities) (ADA), and other federal, state, and local anti-discrimination laws, IMRI does not unlawfully discriminate against any person on the basis of race, color, religion, sex, national origin, ancestry, genetic information, age, marital status, sexual orientation, physical or mental disability, or status as a special disabled veteran or other veteran.

IMRI will take affirmative action to assure equal opportunity for employment is provided with regard to all personnel actions.

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