System Administrator/ Infrastructure Engineer

Critical Manufacturing; George Town; On-site; MYR 60,000 - 80,000; Full time

Job summary

A technology company is seeking a System Administrator / Infrastructure Engineer in George Town, Malaysia. The ideal candidate will manage and improve our hybrid IT infrastructure, ensuring services' security and performance. Must have at least three years of relevant experience and a Bachelor's degree in IT or similar. Responsibilities include overseeing cloud environments, user support, and applying security updates. Proficiency with Windows/Linux systems and cloud platforms like Azure is essential. Excellent communication skills in English are required.

Qualifications

• 3+ years of experience in system administration or infrastructure operations.
• Proven experience with Windows Server and Linux system administration.
• Fluent in English (spoken and written).

Responsibilities

• Administer and maintain physical and virtual infrastructure.
• Operate and monitor hybrid cloud environments.
• Provide 1st and 2nd line support for IT issues.

Skills

System administration

Problem-solving

Analytical skills

Cloud platforms

Collaboration

Troubleshooting

Documentation

Scripting languages

Education

Bachelor's degree in computer science, Information Technology, or related field

Tools

Active Directory

Azure

Windows Server

Linux

Proxmox

Hyper-V

oVirt

PowerShell

Terraform

Job description

Critical Manufacturing is dedicated to empowering high‑performance operations to make Industry 4.0 a reality with the most innovative, comprehensive, and modular MES software. We have a global presence, but our headquarters, and the main technical center, are in Porto (Maia), Portugal, where we develop a state‑of‑the‑art solution for Semiconductor, Electronics, Medical Devices, and Industrial Equipment.

Recognized as a Leader by Gartner, we are part of ASMPT, the world's largest supplier of best‑in‑class equipment, and technological process partner for the electronics and semiconductor industries.

The Role

The System Administrator / Infrastructure Engineer will be responsible for the support, maintenance, and continuous improvement of the company's hybrid IT infrastructure. The role covers system and platform administration, user support (1st and 2nd line), and operational reliability across both on‑premises and cloud‑based environments. This position will play a critical role in ensuring high availability, performance, and security of internal systems and services, supporting business continuity and ongoing digital transformation initiatives. The ideal candidate will bring a broad technical foundation, proactive problem‑solving capabilities, and a service‑oriented mindset.

What will you do

• Administer and maintain physical and virtual infrastructure, including Windows/Linux servers, storage systems, and virtualization platforms (Proxmox, Hyper‑V, oVirt)
• Operate, monitor, and support hybrid cloud environments, including OpenShift clusters (on‑premises) and infrastructure in Azure and AWS
• Provide 1st and 2nd line support, managing service requests and incidents through the IT Helpdesk and Service Desk
• Perform user access management, rights enforcement, and directory services operations using Active Directory and Azure Active Directory
• Apply system and security updates, conduct routine patching, and implement configuration changes in alignment with security and compliance requirements (e.g., ISO 27001, GDPR)
• Support system performance monitoring, capacity management, backup operations, and disaster recovery readiness
• Contribute to automation initiatives using scripting languages (e.g., PowerShell, Bash) and infrastructure‑as‑code tools when applicable
• Maintain accurate and up‑to‑date documentation of systems, processes, configurations, and operational procedures
• Collaborate with internal teams to support deployments, infrastructure projects, and continuous improvement initiatives

What you must have

• Bachelor's degree in computer science, Information Technology, or a related field; equivalent practical experience will also be considered
• Minimum of 3 years of experience in system administration, infrastructure operations, or a comparable role
• Proven experience with Windows Server and Linux system administration
• Proficiency in directory services and cloud platforms: Active Directory, Azure, and Microsoft 365
• Familiarity with virtualization environments, basic networking (DNS, DHCP, VPNs, firewalls) and storage networking
• Strong analytical and troubleshooting skills, with the ability to work independently and collaboratively
• Fluent in English (spoken and written)

What we consider a plus (not mandatory)

• Hands‑on experience with OpenShift, container platforms (Docker/Kubernetes), and hybrid cloud management
• Knowledge of Infrastructure as Code tools (e.g., Terraform, Ansible)
• Exposure to monitoring and observability platforms (e.g., Zabbix, Prometheus, Grafana)
• Experience in environments aligned with ITIL, DevOps, or Agile methodologies
• ITIL Foundation certification