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Linux System Administrator

First National Bank Texas

* In-house SME to administer, monitor, and maintain Linux (RHEL/Ubuntu/CentOS) systems.
* Configure, secure, and optimize Linux services (systemd, SSH, Apache/Nginx, cron, etc.).
* Collaborate with development, DevOps, and security teams to support enterprise applications.
* Provide Tier 2/3 support for escalated system issues.
* Identify, research, and implement Linux and OpenShift solutions and applications.
* Provide support to IT staff for technical and configuration issues related to Linux systems.
* Manage Linux security administration in collaboration with the information security team.
* Stay current on all Linux and OpenShift changes, updates, and new releases and keep IT staff informed on forthcoming changes.
* Work with vendors and other departments as required to support applications and environments.
* Work closely with the IT team to provide end-user support and issue resolution.
* Maintain up-to-date knowledge of emerging server tools and technologies.
* Create and maintain documentation for all Linux and OpenShift processes and procedures.
* Ensure compliance with security standards, patching schedules, and company policies.
* Participation in weekly on-call rotation to respond to after-hours issues.
* Coordinate with the rest of the IT team to meet the team objectives.
* Travel as needed to other data centers to meet business needs.
* Regular and predictable attendance and punctuality
* Other duties as assigned.

Physical Requirements:
* Must be able to remain in a sitting stationary position for extended periods of time.
* Constantly operate a computer and other office machinery
* Ability to lift 25 pounds.

FNBT is a equal opportunity employer.

* At least 18 years of age
* High school diploma or equivalent
* Bachelor's degree in Computer Science, Computer Engineering, or related field preferred (relevant experience may be considered in lieu of a degree)
* Certifications such as RHCSA/RHCE, MCSE, CKAD/CKA, or OpenShift certification preferred
* Ability to meet deadlines with Projects and Assignments.
* Knowledge of installations, upgrades and troubleshooting of Linux, Windows, and Web application Servers.
* Working knowledge of web application security, understanding of vulnerabilities and countermeasures
* Familiar with Windows Servers and services including Active Directory, Group Policy, DNS, DHCP, and PowerShell.
* Familiar with VMware vSphere/ESXi to include virtual machine deployment, resource management, administration, and snapshots
* Experience administering and supporting OpenShift, Kubernetes, or Docker containerized environments preferred
* Prefer experience with install, configuration, and maintenance of OpenShift/Kubernetes clusters, including upgrades, monitoring, and troubleshooting.
* Familiarity with CI/CD pipelines, Git, and DevOps practices preferred
* Knowledge of monitoring and logging solutions (Prometheus, Grafana, ELK, Splunk) preferred
* Experience with Infrastructure as Code (Terraform, Ansible) preferred
* Familiarity with security hardening and patch management practices.
* Strong technical aptitude and ability to research & solve complex issues independently.
* Ability to effectively communicate issues and resolutions to all levels of the organization.
* Ability to maintain confidentiality with sensitive customer and internal information.
* Must successfully pass background investigation according to company policy.
* Must have the ability to multi-task.
Vacancy posted 2 days ago
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