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Salary
$38k – $66k per year (gross)
Location
In office (Singapore)
Seniority
Senior · 5+ years exp
Employment
Full-Time

First seen by Alion on Sep 16, 2026.

Overview
Company
Impact
Profile match
Technology talent sourcing, staff augmentation and application delivery across Singapore, Hong Kong and APAC, with expertise in data, AI, cloud and cybersecurity.

We are looking for an experienced System Engineer with around 5 years of hands-on experience managing and securing enterprise infrastructure environments.

Responsibilities

  • Manage, maintain and support VMware virtualization environments.
  • Administer and troubleshoot Windows Server infrastructure.
  • Perform server deployment, configuration, patching, upgrades and performance monitoring.
  • Implement system hardening and security controls based on the Center for Internet Security (CIS) Controls and CIS Benchmarks.
  • Review system configurations, identify security gaps and implement remediation measures.
  • Manage Active Directory, Group Policy, access controls and related Windows infrastructure services.
  • Support vulnerability remediation, security assessments and audit requirements.
  • Maintain technical documentation, configuration standards and operational procedures.
  • Work with infrastructure, cybersecurity and application teams to ensure secure and reliable system operations.

Requirements

  • Around 5 years of experience in System Engineering / Infrastructure Engineering.
  • Strong hands-on experience with VMware and Windows Server.
  • Good knowledge of Active Directory, Group Policy, DNS and related Windows services.
  • Practical experience in Windows/server hardening and secure configuration.
  • Familiarity with CIS Benchmarks / CIS Controls and implementation of security baselines.
  • Understanding of vulnerability management, patch management and general infrastructure security principles.
  • Strong troubleshooting and problem-solving skills.
  • Experience with PowerShell automation, backup solutions, monitoring tools, Linux or cybersecurity projects would be an advantage.

Skills

Network Configuration, Troubleshooting, Security Hardening, Active Directory, VMware, Computer Science, Windows Server, Networking, Server Hardening, System Administration, Cybersecurity, CIS

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