Lead System Engineer: Windows & RHEL On-Site (Singapore)

Rapsys Technologies Pte Ltd.; Singapore; On-site; SGD 120,000 - 150,000; Full time

Job summary

Rapsys Technologies Pte Ltd. is seeking a Lead System Engineer with strong Windows Server and Red Hat Enterprise Linux (RHEL) expertise.

You will design, deploy, and manage enterprise IT infrastructure across on-premises and hybrid environments, lead automation initiatives, and guide incident response while ensuring security hardening and compliant operations. The role requires hands-on experience in system administration, virtualization, storage, and scripting with PowerShell, Bash, and Python.

Qualifications

• Windows Server and RHEL administration experience.
• Experience with patching, security hardening, and access controls.
• Scripting in PowerShell, Bash, and Python.
• Experience with virtualization and storage technologies.
• ITIL Foundation certification is required.

Responsibilities

• Design, deploy, and manage Windows Server and RHEL infrastructure in on-premises and hybrid environments.
• Perform system administration tasks including user management, access controls, patch management, and security hardening.
• Develop automation scripts using PowerShell, Bash, and Python.
• Monitor system performance and optimize infrastructure for availability and resource utilization.
• Troubleshoot complex system and infrastructure issues and provide timely resolutions.
• Manage virtualization platforms and storage solutions, including configuration and capacity planning.
• Collaborate with cross-functional teams on infrastructure changes and upgrades.
• Maintain detailed technical documentation covering system configurations, procedures, and architecture.
• Conduct security assessments and implement infrastructure security best practices.
• Participate in incident management and provide on-call support when required.
• Stay updated with emerging technologies and recommend infrastructure improvements.

Skills

Windows Server

Wintel administration

RHEL

Linux

System Administration

PowerShell

Bash

Python

Patch Management

Security Hardening

Virtualization

Storage

System Monitoring

Troubleshooting

ITIL

CyberArk

QRadar

Education

ITIL Foundation certification

Tools

IBM AIX

IBM Spectrum Protect

RSA security solutions

Symantec EDR

QRadar

IBM Tivoli Monitoring

Job description

Rapsys Technologies Pte Ltd. is seeking a Lead System Engineer with strong Windows Server and Red Hat Enterprise Linux (RHEL) expertise.

You will design, deploy, and manage enterprise IT infrastructure across on-premises and hybrid environments, lead automation initiatives, and guide incident response while ensuring security hardening and compliant operations. The role requires hands-on experience in system administration, virtualization, storage, and scripting with PowerShell, Bash, and Python.