U

University of Texas at Austin

Public research university in Austin, TX

Senior Linux Systems Administrator

System AdministrationPosted on Nov 13
Full-timeAustin, TX, USA$85k - $100k

About the Job

Requirements

  • A bachelor's degree in computer science or another related field is required.
  • Five years of experience administering Linux systems in an enterprise storage and backup environment, including integrating with SAN/NAS infrastructure through multipathing, LVM, filesystems, NFS server/client configuration, and Linux-side backup and restore operations.
  • Experience with commonly used concepts, practices, and procedures for maintaining backup and storage infrastructure is required.
  • Experience with Fibre Channel, iSCSI, or other network storage protocols is required.
  • Experience with commonly used concepts, practices, procedures, and tools for maintaining a Linux enterprise infrastructure, including strong hands-on expertise in Red Hat Enterprise Linux 8 or 9, is required.
  • A demonstrated track record of designing and executing Linux infrastructure improvements from assessment through implementation, beyond daily operations, is required.
  • Experience with shell scripting using Perl, Python, Bash, or a similar language is required.
  • Relevant education and experience may be substituted as appropriate.

Responsibilities

  • Install, configure, administer, maintain, and troubleshoot Linux computer systems, and provide end-user support for software, servers, workstations, laptops, and virtual machines.
  • Modernize and standardize existing infrastructure by rebuilding systems onto a lean, consistent, well-governed baseline; own infrastructure initiatives end-to-end from planning through execution with minimal daily supervision.
  • Ensure Linux systems integrate properly with SAN/NAS storage and backup infrastructure; partner with the storage administration team on backup services, recovery operations, troubleshooting, and escalation.
  • Assess, rebuild, and redesign existing Linux systems; standardize systems and create golden images with automated provisioning pipelines such as PXE or Kickstart.
  • Administer configuration-management tooling such as Salt or Ansible to enforce consistent, auditable configurations across the environment.
  • Establish and maintain software-distribution and patching repository infrastructure, leveraging the central IT mirror and setting up a local mirror for lab-specific needs; control point releases to standardize patch levels and manage content synchronization, availability, and access controls.
  • Perform and maintain Linux, backup, and storage systems audits for compliance with established information-assurance policies and configuration guidelines.
  • Document and maintain processes, procedures, and configurations for Linux, storage, and backup solution configuration and change management.
  • Maintain computer hardware and software inventories and documentation.
  • Perform other related functions as assigned.

Desired Qualifications

  • At least seven years of experience in Linux system administration.
  • A current DoD 8570.1/8140 IAT II or higher certification, such as CySA+, Security+, GICSP, GSEC, or another approved information-assurance certification.
  • Experience administering Ubuntu systems in addition to Red Hat Enterprise Linux.
  • Experience creating and maintaining golden images or standardized server templates, including Red Hat Enterprise Linux golden images or VMware templates, and using automated provisioning such as Kickstart, PXE, or cloud-init.
  • Experience with infrastructure architecture, including building, rebuilding, or redesigning existing Linux infrastructure.
  • Experience administering VMware vSphere environments hosting Linux virtual machines.
  • Experience administering system configuration-management tools such as Salt, Ansible, Kickstart, Cobbler, Red Hat Network Satellite, or Puppet.
  • Experience establishing and maintaining repository or mirror infrastructure such as Red Hat Enterprise Linux or Alma local mirrors, Satellite, or Artifactory, including point-release and patch-level control.
  • Experience with orchestration software such as Kubernetes, Docker, or Podman.
  • Experience with source-code management tools such as Subversion or Git.
  • Experience with web and database hosting environments such as Apache, nginx, MySQL/MariaDB, or PostgreSQL.
  • Experience supporting compute-heavy workloads on physical bare-metal servers.
  • Experience with infrastructure migrations such as NAS-to-array data migrations or storage consolidation.
  • Familiarity with compliance frameworks such as NIST 800-171, CMMC, or STIGs in controlled environments.
  • Relevant certifications such as RHCE or an equivalent are a plus.

About the Company

University of Texas at Austin

Public research university in Austin, TX

University of Texas at Austin is a public research university in Austin, Texas. It offers undergraduate, graduate, and professional education across a broad range of fields.

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