Linux System Administrator - Killeen, TX

First Community Services Data Processing; Killeen (TX); On-site; USD 85,000 - 120,000; Full time

Job summary

First Community Services Data Processing in Texas is seeking an experienced Linux system administrator to manage Linux platforms (RHEL/Ubuntu/CentOS), secure and optimize services, and collaborate with development, DevOps, and security teams on enterprise applications.

The role includes Tier 2/3 support, implementing OpenShift/Kubernetes solutions, contributing to on-call rotations, maintaining documentation, and ensuring security and patch management across environments.

Qualifications

• Bachelor's degree in CS/CE or related field preferred (relevant experience may be considered in lieu of a degree)
• 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
• Experience with OpenShift/Kubernetes or Docker environments preferred
• Familiarity with CI/CD pipelines and DevOps practices
• Strong troubleshooting and communication skills
• Ability to work with cross-functional teams and maintain documentation

Responsibilities

• In-house SME to administer, monitor, and maintain Linux systems (RHEL/Ubuntu/CentOS).
• 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.
• Work with vendors and other departments to support applications and environments.
• Maintain up-to-date knowledge of emerging server tools and technologies.
• Create and maintain documentation for 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.
• Travel as needed to other data centers to meet business needs.

Skills

Communication

Deadline oriented

Team collaboration

Problem solving

Education

Bachelor's degree in CS/CE or related field preferred

Tools

Linux (RHEL/Ubuntu/CentOS) administration

OpenShift/Kubernetes/Docker

Terraform/Ansible

Prometheus/Grafana/ELK/Splunk

CI/CD tooling

Job description

Requirements

• 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.

Job Description

• 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.