Junior & Senior System Security Engineer (OS & App Security)

Public Mutual Berhad; Kuala Lumpur; On-site; MYR 100,000 - 180,000; Full time

Job summary

Public Mutual Berhad in Kuala Lumpur seeks a hands-on System Security Engineer to join our IT Security team. You will own the end-to-end engineering, deployment, and operational administration of enterprise security technologies and environments, focusing on reducing cyber risk.

Key duties include installing and managing firewalls, EPP, NAC, and DLP; patching and hardening; driving risk assessments; and developing automation scripts (PowerShell, Bash, Python) to improve health checks and

Qualifications

• Bachelor's degree or higher in CS/IT/cyber security or related field.
• 3–5 years of experience in system security, system administration or IT infrastructure.
• Knowledge of Windows Server, Linux, Active Directory, enterprise networking, and security systems.

Responsibilities

• Install, configure, and manage enterprise security platforms such as next generation firewalls, endpoint protection systems, network access controls, and data loss prevention (DLP) solutions.
• Maintain the stability and security of system infrastructure through patch management, policy tuning, and system upgrades.
• Manage security infrastructure projects from planning to deployment while ensuring compliance with internal policies and risk requirements.
• Translate security and compliance requirements into secure systems configurations, encryption protocols, and access controls.
• Implement system hardening standards and technical baselines to reduce security vulnerabilities and cyber risks.
• Develop automation scripts and platform integrations to improve data flow, automate health checks, and streamline security system management.

Skills

Windows Server

Linux

Active Directory

Enterprise networking

Security systems

PowerShell

Bash

Python scripting

Cyber risk awareness

NIST CSF

GTRM

Troubleshooting

Education

Bachelor's degree in Computer Science / IT / Cyber Security

Job description

We are seeking for a hands-on System Security Engineer to join our IT Security team. This role focuses on the end-to-end engineering, deployment, and operational administration of our enterprise security technologies and operating environments, demanding a strong cyber-risk-oriented mindset. Rather than focusing purely on routine administrative workflows, you will actively evaluate operational vulnerabilities, lead project-based risk assessments, and engineer robust technical controls to systematically lower our overall risk posture.

Job Responsibilities

• Install, configure, and manage enterprise security platforms such as next generation firewalls, endpoint protection systems, network access controls, and data loss prevention (DLP) solutions.
• Maintain the stability and security of system infrastructure through patch management, policy tuning, and system upgrades.
• Manage security infrastructure projects from planning to deployment while ensuring compliance with internal policies and risk requirements.
• Translate security and compliance requirements into secure systems configurations, encryption protocols, and access controls.
• Implement system hardening standards and technical baselines to reduce security vulnerabilities and cyber risks.
• Develop automation scripts and platform integrations to improve data flow, automate health checks, and streamline security system management.

Job Requirements

• Bachelor’s degree in computer science, Information Technology, Cyber Security, or related field.
• 3 to 5 years of experience in System Security, System Administration, or IT infrastructure.
• Knowledge of Windows Server, Linux, Active Directory, enterprise networking, and security systems.
• Understanding of NIST Cyber Security Framework (CSF) and Securities Commission Malaysia’s Guidelines on Technology Risk Management (GTRM).
• Familiar with PowerShell, Bash, or Python scripting for automation.
• Strong troubleshooting and problem-solving skills with cyber risk awareness.