Unix Systems Admin, Sr. (Red Hat)

Stefanini North America and APAC; Pasay; On-site; PHP 800,000 - 1,200,000; Full time

Job summary

Stefanini North America and APAC seeks an experienced UNIX/Linux Administrator to manage enterprise Linux and UNIX environments in Pasay, Philippines. The role involves system administration, troubleshooting, patching, automation, and production support.

The candidate should have strong Red Hat Enterprise Linux expertise, shell scripting, and collaboration with infra teams. On-site work and on-call incident management are expected.

Qualifications

• 3–7 years of UNIX/Linux system administration experience.
• Strong hands-on experience with Red Hat Enterprise Linux.
• Experience with shell scripting and Linux command-line tools.
• Familiarity with ITIL processes, ticketing systems, and change-control procedures.
• Ability to troubleshoot complex production issues independently.

Responsibilities

• Install, configure, administer, and maintain RHEL and UNIX servers.
• Manage user accounts, groups, permissions, sudo access, and authentication services.
• Patch, harden, and remediate vulnerabilities; perform OS upgrades.
• Monitor performance, capacity, availability, and resource utilization.
• Troubleshoot server, OS, network, storage, and application issues.
• Manage filesystems, LVM, NFS, RAID, multipathing, and disk space.
• Configure services such as SSH, DNS, NTP, FTP/SFTP, HTTP, and SMTP.
• Support HA, clustering, backup, and disaster recovery.
• Automate tasks using Shell scripting, Ansible, or Python.
• Review logs and perform root-cause analysis.
• Collaborate with application, database, network, security, and infra teams.
• Participate in change management, incident management, and on-call support.
• Maintain documentation and troubleshooting guides.
• Ensure compliance with security standards and regulatory requirements.

Skills

UNIX/Linux system administration

Red Hat Enterprise Linux

Shell scripting

Ansible

Python

Git

Terraform

Docker

Kubernetes

OpenShift

VMware

Networking basics

Education

Bachelor's degree in Computer Science, Information Technology, or related field

Tools

Ansible

Git

Terraform

Docker

Kubernetes

OpenShift

VMware

Job description

Details:

Job Description

Job Description: UNIX / Red Hat Linux Administrator

We are seeking an experienced UNIX / Red Hat Linux Administrator to manage, maintain, and support enterprise Linux and UNIX environments. The successful candidate will be responsible for system administration, troubleshooting, performance optimization, security, patching, automation, and production support.

• Install, configure, administer, and maintain Red Hat Enterprise Linux (RHEL) and UNIX servers.
• Manage user accounts, groups, permissions, sudo access, and authentication services.
• Perform operating system patching, upgrades, hardening, and vulnerability remediation.
• Monitor system performance, capacity, availability, and resource utilization.
• Troubleshoot server, operating system, network, storage, and application-related issues.
• Manage filesystems, LVM, NFS, RAID, multipathing, and disk space utilization.
• Configure and maintain services such as SSH, DNS, NTP, FTP/SFTP, HTTP, and SMTP.
• Support high-availability, clustering, backup, and disaster-recovery environments.
• Automate routine administrative tasks using Shell scripting, Ansible, or Python.
• Review system logs and conduct root-cause analysis for incidents and recurring problems.
• Collaborate with application, database, network, security, and infrastructure teams.
• Participate in change management, incident management, and on-call support activities.
• Maintain system documentation, operational procedures, and troubleshooting guides.
• Ensure compliance with organizational security standards and regulatory requirements.

Details:

Job Requirements

• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent experience.
• 3-7 years of experience in UNIX/Linux system administration.
• Strong hands-on experience with Red Hat Enterprise Linux.
• Knowledge of UNIX systems such as AIX, Solaris, or HP-UX is preferred.
• Experience with Shell scripting and Linux command-line tools.
• Working knowledge of TCP/IP, DNS, DHCP, SSH, firewalls, and networking concepts.
• Experience with system monitoring, backup, patching, and configuration management tools.
• Familiarity with ITIL processes, ticketing systems, and change-control procedures.
• Ability to troubleshoot complex production issues independently.

Details:

Preferred Skills

• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE).
• Experience with Ansible, Git, Python, or Terraform.
• Knowledge of cloud platforms such as AWS, Microsoft Azure, or Google Cloud.
• Experience with Docker, Kubernetes, or OpenShift.
• Familiarity with virtualization technologies such as VMware.
• Knowledge of security tools, vulnerability management, and compliance frameworks.
• Experience supporting clustered or highly available environments.

Technical Skills

• Operating Systems: RHEL 7/8/9, CentOS, UNIX, AIX, Solaris
• Scripting: Bash, KornShell, Python

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