IT Infrastructure System Engineer

1 day ago

North Region, Singapore Samwoh Corporation Pte Ltd Full time $90,000 - $120,000 per year

We are seeking a skilled and security-focused IT Infrastructure System Engineer with 3 to 5 years of hands-on experience in managing firewalls, networks, endpoints and Microsoft 365. The ideal candidate will have a strong understanding of IT infrastructure administration and a proactive approach to cybersecurity. Experience in end-user support is a valuable asset.

Responsibilities

Firewall & Network Administration

  • Configure, monitor, and maintain firewalls (Fortinet, Palo Alto).
  • Manage network infrastructure including switches, routers, and VPNs.
  • Monitor network performance and troubleshoot connectivity issues.

Endpoint Management

  • Administer endpoint protection platforms including Microsoft Defender Antivirus.
  • Ensure compliance with security policies across all devices.
  • Perform patch management and software deployment.

Security Operations

  • Implement and enforce security best practices across infrastructure.
  • Conduct regular vulnerability assessments and remediation.
  • Collaborate with security teams to respond to incidents and threats.

System Administration

  • Maintain Windows/Linux servers and virtual environments (VMware, Hyper-V).
  • Manage Active Directory, DNS, DHCP, and other core services.
  • Perform regular backups and disaster recovery testing.

Microsoft 365 Administration

  • Manage and maintain Microsoft 365 services including Exchange Online, SharePoint, Teams, OneDrive, and Intune.
  • Administer user accounts, licenses, groups, and permissions via Microsoft 365 Admin Center and PowerShell.
  • Monitor service health, usage, and performance metrics.

End-User Support (Preferred)

  • Provide Tier 2/3 support for escalated technical issues.
  • Assist users with hardware/software troubleshooting and setup.
  • Document solutions and contribute to knowledge base.

Requirements

· Bachelor's degree in Computer Science, Information Technology, or related field.

· –5 years of experience in IT infrastructure and system administration.

· Strong knowledge of network protocols, firewall rules, endpoint security and Microsoft 365.

· Familiarity with security frameworks and compliance standards (e.g., ISO 27001, NIST).

· Excellent problem-solving and communication skills.

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