Linux Systems Administrator

GECO Asia Pte. Ltd; Santo Niño 1st; On-site; PHP 600,000 - 900,000; Full time

Job summary

GECO Asia Pte. Ltd is seeking a Linux Systems Administrator to join our enterprise infrastructure team. You will administer Linux and Windows Server environments, implement upgrades, perform backup and disaster recovery, and help maintain secure operations.

The ideal candidate has 3+ years of systems administration experience, with knowledge of SSH, sudoers, and security hardening. You will collaborate with cross-functional teams to ensure reliable, scalable IT services across regional offices.

Qualifications

• Minimum 3 years of experience in Systems Administration, Infrastructure Support, or Systems Engineering.
• Strong hands-on experience with Linux and Windows Server administration.
• Experience with server security hardening (CIS hardening preferred).
• Knowledge of SSH, user account management, privilege control (sudoers), and password policies.
• Experience with backup, recovery, and disaster recovery planning.
• Familiarity with incident management, change management, and root cause analysis.

Responsibilities

• Administer, maintain, and troubleshoot Linux and Windows servers.
• Perform server installation, configuration, upgrades, and system implementation.
• Execute backup, restore, and disaster recovery procedures.
• Conduct root cause analysis and resolve infrastructure incidents.
• Perform system monitoring, maintenance, and performance optimization; implement security hardening and server security best practices.
• Support change management, operational support, and infrastructure projects.
• Collaborate with internal teams to ensure stable and secure operations.

Skills

Linux admin

Windows Server

Incident management

Root cause analysis

Security hardening

Networking basics

Backup and DR planning

Tools

SSH

PowerShell

Bash scripting

REAR

Job description

We are looking for a Linux Systems Engineer with strong Linux and Windows Server administration experience to support and maintain enterprise infrastructure environments.

We're Hiring: Linux Systems Administrator!

Key Responsibilities

• Administer, maintain, and troubleshoot Linux and Windows servers
• Perform server installation, configuration, upgrades, and system implementation
• Execute backup, restore, and disaster recovery procedures
• Conduct root cause analysis and resolve infrastructure incidents
• Perform system monitoring, maintenance, and performance optimizationImplement security hardening and server security best practices
• Support change management, operational support, and infrastructure projects
• Collaborate with internal teams to ensure stable and secure operations

Requirements

• Minimum 3 years of experience in Systems Administration, Infrastructure Support, or Systems Engineering
• Strong hands‑on experience with Linux and Windows Server administration
• Experience with server security hardening (CIS hardening preferred)
• Knowledge of SSH, user account management, privilege control (sudoers), and password policies
• Experience with backup, recovery, and disaster recovery planning
• Familiarity with incident management, change management, and root cause analysis
• Good understanding of networking fundamentals and infrastructure troubleshooting

Nice to Have

• Experience with REAR (Relax-and-Recover)
• Bash or PowerShell scripting
• Experience with CCTV, PSIM, Access Control, or Security Systems
• Knowledge of security compliance frameworks and vulnerability remediation

GECO Asia is a specialist IT Consultancy Services company headquartered in Singapore, with offices in the Philippines, Indonesia, Malaysia, and China, with two delivery centers in the Philippines – Manila and Iloilo. With over 18+ years of experience, we’ve been known in the Asia Pacific marketplace as a specialist provider of high-end IT resources.