Linux Systems Administrator

First National Bank Texas•Killeen, TX

19h

About The Position

Administer, monitor, and maintain Linux (RHEL/Ubuntu/CentOS) and Windows Server systems. Configure, secure, and optimize Linux services (systemd, SSH, Apache/Nginx, cron, etc.). Install, configure, and maintain OpenShift/Kubernetes clusters, including upgrades, monitoring, and troubleshooting 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. 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.

Requirements

At least 18 years of age
High school diploma or equivalent
Ensure compliance with security standards, patching schedules, and company policies.
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
Experience administering and supporting OpenShift, Kubernetes, or Docker containerized environments.
Familiarity with CI/CD pipelines, Git, and DevOps practices.
Knowledge of monitoring and logging solutions (Prometheus, Grafana, ELK, Splunk).
Familiarity with security hardening and patch management practices.
Must have the ability to multi-task.
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 be able to get along with co-workers and work effectively in a team environment

Nice To Haves

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.
Experience with Infrastructure as Code (Terraform, Ansible).

Responsibilities

Administer, monitor, and maintain Linux (RHEL/Ubuntu/CentOS) and Windows Server systems.
Configure, secure, and optimize Linux services (systemd, SSH, Apache/Nginx, cron, etc.).
Install, configure, and maintain OpenShift/Kubernetes clusters, including upgrades, monitoring, and troubleshooting
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.
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.