Linux System Administrator

FCS - First Community Services; Killeen (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

FCS - First Community Services in Killeen, TX seeks an in-house SME to administer, monitor, and maintain Linux systems (RHEL/Ubuntu/CentOS). Configure, secure, and optimize Linux services (Apache/Nginx, SSH).

Collaborate with development, DevOps, and security teams to support enterprise apps. Provide Tier 2/3 support, identify Linux/OpenShift solutions, manage security with the security team, and stay current on releases.

Qualifications

• Bachelor's degree preferred; relevant experience may be considered in lieu of a degree.
• RHCSA/RHCE, MCSE, CKAD/CKA, or OpenShift certification preferred
• Knowledge of Linux, Windows, and web servers; strong troubleshooting skills
• Ability to meet deadlines and communicate issues clearly across levels of the org

Responsibilities

• Administer, monitor, and maintain Linux systems (RHEL/Ubuntu/CentOS).
• Configure, secure, and optimize Linux services (systemd, SSH, Apache/Nginx, cron).
• Collaborate with development, DevOps, and security teams to support applications.
• Provide Tier 2/3 support for escalated system issues.
• Identify, research, and implement Linux and OpenShift solutions.

Skills

Linux administration

Security hardening

Troubleshooting

Communication skills

On-call readiness

Multi-tasking

Education

Bachelor's degree in Computer Science/Engineering or related field

Tools

OpenShift/Kubernetes

Docker

VMware vSphere/ESXi

Prometheus/Grafana/ELK/Splunk

Terraform/Ansible

Git/CI/CD

Job description

• 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.

Member FDIC, Equal Housing Lender

FCBI is an Equal Opportunity Employer

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