System Engineer

ASSURITZ INFOSEC (SG) PTE. LTD.; Singapore; On-site; SGD 60,000 - 100,000; Full time

Job summary

ASSURITZ INFOSEC (SG) PTE. LTD. seeks an experienced ICT Infrastructure Specialist to build and support a full stack, assist application teams with integration, and ensure reliable, secure operations across data centre and cloud environments.

Candidates should have hands-on skills in AzureStack, Windows Server, SQL Server, Ubuntu/Linux, backups with Commvault, network security, and SSL management, and be prepared to contribute to the upcoming Kubernetes migration.

Qualifications

• Hands-on experience with cloud and virtualization platforms (AzureStack).
• Strong admin skills for Windows Server environments and domain services.
• Experience with Microsoft SQL Server versions 2019/2016/2017.
• Proficiency with Ubuntu/Linux for VMs and appliances.
• Backup administration using Commvault and data protection best practices.
• Ability to design and implement secure network configurations.
• Experience managing SSL certificates and secure communications.

Responsibilities

• Perform preventive maintenance to ensure system reliability and uptime.
• On standby 24/7 to respond to system faults and coordinate with users.
• Hands-on work on virtual machines in the data centre.
• Analyze and propose system architectures aligned with requirements to optimize performance.
• Document configurations, procedures, and changes for knowledge sharing.

Skills

AzureStack

Windows Server Admin

SQL Server

Ubuntu/Linux

Commvault Backup

Network Security

SSL Management

Job description

Job Summary

Candidate will construct a full ICT infrastructure stack and support application teams with system integration and maintenance, ensuring reliable and secure operations.

Candidate must have minimum 2–5 years of hands‑on experience.

Core Skills requirement

Candidate should have at least 5 or more skills required as stated below.

1. Configure and deploy virtual machines within AzureStack Hub Virtualisation Environment, including managing AzureStack services such as NSG, Load Balancer, Virtual Images, and Storage to support VM operations


2. Configure and administer Windows Server 2019 or 2016 environments, including Windows Domain Administration, Microsoft Failover Clustering, Windows RDS Architecture, Group Policy Objects (GPO), OS hardening, patching, and upgrading


3. Configure, upgrade, harden, and administer Microsoft SQL Server 2019, 2016, or 2017 databases.


4. Deploy and maintain Ubuntu OS and Linux‑based Virtual Appliances.


5. Configure and manage Commvault backup jobs to ensure data protection and recovery readiness


6. Design and implement network and network security solutions based on established concepts to safeguard infrastructure


7. Apply system security principles including SSL certificate management to maintain secure communications

Additional preferred competencies and qualifications

Candidate will also be planning and assisting in the upcoming system migration to the Kubernetes platform for project turnkey. The skills requirement are:

• Knowledge in DevOps operations


• Experience with Ansible automation tools

General Work Responsibilities

• Perform preventive maintenance tasks to ensure system reliability and uptime


• On standby and to respond to system fault at site 24/7 and communication with useron the fault.


• Hands‑on/ground‑level work on VMs in Datacentre


• Analyze and propose system architecture and solutions aligned with system requirements to optimize infrastructure performance


• Document system configurations, procedures, and changes to maintain accurate records and support knowledge sharing