Senior Red Hat Linux Systems Engineer

Stefanini, Inc; Pasay; On-site; PHP 900,000 - 1,500,000; Full time

Job summary

Stefanini, Inc. is seeking an experienced UNIX/Linux System Administrator (Senior) to manage, maintain, and support enterprise Linux/UNIX environments in Pasay.

You will handle system administration, troubleshooting, performance optimization, security, patching, automation, and production support. The role involves installing and maintaining RHEL/UNIX servers, managing users and permissions, patching and hardening, monitoring performance, troubleshooting issues, configuring services, supporting

Qualifications

• 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.

Responsibilities

• 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.

Skills

UNIX/Linux administration

Shell scripting

TCP/IP networking

Root-cause analysis

On-call support

Education

Bachelor's degree in Computer Science/IT or related

Tools

Ansible

Git

Python

Terraform

Docker

Kubernetes

OpenShift

VMware

RHCSA/RHCE

Job description

Stefanini, Inc. is seeking an experienced UNIX/Linux System Administrator (Senior) to manage, maintain, and support enterprise Linux/UNIX environments in Pasay.

You will handle system administration, troubleshooting, performance optimization, security, patching, automation, and production support. The role involves installing and maintaining RHEL/UNIX servers, managing users and permissions, patching and hardening, monitoring performance, troubleshooting issues, configuring services, supporting