Manager, IT Infrastructure

SMRT Corporation; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

SMRT Corporation in Singapore seeks a highly skilled System Operation Manager to ensure availability, performance, security, and maintenance of IT operations across on-prem and cloud environments. You will oversee system monitoring, incident response, vulnerability management, compliance support, and disaster recovery planning.

You will work with cloud, application, security operation and business teams to ensure stable, reliable IT operations, lead incident response, drive continuous

Qualifications

• Bachelor's degree in information technology, computer science or related field.
• Experience in SOC operations and incident response.
• Familiarity with cloud security environments (Azure, AWS, Google Cloud).
• Strong knowledge of server operations, incident response, vulnerability management, and cloud security.
• Hands-on experience with Azure, AWS, Google Cloud, Linux and Windows.

Responsibilities

• Manage and maintain Linux and Windows server environments (physical, virtual, and cloud).
• Ensure high availability and optimal performance of servers and related infrastructure.
• Monitor system health, capacity, and resource utilization.
• Manage Active Directory, Group Policy, DNS, DHCP, and file services.
• Administer Linux services such as Apache, Nginx, SSH, Samba, and database servers.
• Implement and maintain system hardening standards.
• Ensure timely patch management and vulnerability remediation.
• Manage privileged access controls and security configurations.
• Support compliance requirements, audits, and security assessments.
• Monitor and respond to security incidents affecting servers and infrastructure.
• Establish proactive monitoring and alerting mechanisms.
• Lead incident response, troubleshooting, and root cause analysis.
• Coordinate major incident management and service restoration activities.
• Prepare post-incident reports and corrective action plans.
• Manage backup solutions and data recovery procedures. Conduct regular backup validation and restoration testing.
• Develop and maintain disaster recovery and business continuity plans.
• Ensure recovery objectives (RPO/RTO) are met.
• Manage cloud platforms such as Microsoft Azure, Amazon Web Services, or Google Cloud.
• Administer virtualization platforms such as VMware, Microsoft Hyper‑V, and container platforms.
• Monitor cloud costs and optimize infrastructure utilization.

Skills

Leadership

Incident management

Crisis management

Stakeholder management

Analytical skills

Communication

Multi-priority management

Education

Bachelor's degree in IT/CS

Tools

Azure

AWS

Google Cloud

VMware

Hyper-V

Active Directory

DNS/DHCP

Job description

• Seeking a highly skilled and hands-on System Operation Manager responsible for managing the organization’s system operations, ensuring availability, performance, security, and maintenance. The role oversees system monitoring, incident response, vulnerability management, compliance support, and continuous improvement of optimal performance of the servers.
• This role will work closely with cloud, application, security operation and business teams to ensure stable and reliable IT operations.

Job description

Job Purpose

• Seeking a highly skilled and hands-on System Operation Manager responsible for managing the organization’s system operations, ensuring availability, performance, security, and maintenance. The role oversees system monitoring, incident response, vulnerability management, compliance support, and continuous improvement of optimal performance of the servers.
• This role will work closely with cloud, application, security operation and business teams to ensure stable and reliable IT operations.

Responsibilities

• Manage and maintain Linux and Windows server environments (physical, virtual, and cloud).
• Ensure high availability and optimal performance of servers and related infrastructure.
• Monitor system health, capacity, and resource utilization.
• Manage Active Directory, Group Policy, DNS, DHCP, and file services.
• Administer Linux services such as Apache, Nginx, SSH, Samba, and database servers.
• Implement and maintain system hardening standards.
• Ensure timely patch management and vulnerability remediation.
• Manage privileged access controls and security configurations.
• Support compliance requirements, audits, and security assessments.
• Monitor and respond to security incidents affecting servers and infrastructure.
• Establish proactive monitoring and alerting mechanisms.
• Lead incident response, troubleshooting, and root cause analysis.
• Coordinate major incident management and service restoration activities.
• Prepare post-incident reports and corrective action plans.
• Manage backup solutions and data recovery procedures. Conduct regular backup validation and restoration testing.
• Develop and maintain disaster recovery and business continuity plans.
• Ensure recovery objectives (RPO/RTO) are met.
• Manage cloud platforms such as Microsoft Azure, Amazon Web Services, or Google Cloud.
• Administer virtualization platforms such as VMware, Microsoft Hyper‑V, and container platforms.
• Monitor cloud costs and optimize infrastructure utilization.

Qualifications & Work Experience

• Bachelor’s degree in Information Technology, Computer Science, or a related field
• Experience in SOC operations and incident response
• Familiarity with cloud security environments (Azure, AWS, Google Cloud) preferred
• Strong knowledge of server operations, incident response, vulnerability management, network technologies, identity & access management, and cloud security
• Hands‑on experience with Azure, AWS, Google Cloud, as well as Linux and Windows operating systems
• Relevant certifications preferred (e.g., CompTIA Linux+, LPI, Linux Foundation, Red Hat, Windows Server Hybrid Administrator, Azure, AWS, Google Cloud)

Skills

• 5–8 years of experience in cybersecurity or IT security operations, with at least 3–5 years in a leadership role
• Strong analytical and problem‑solving skills
• Proven capability in crisis and incident management
• Effective communication and stakeholder management skills
• Ability to work under pressure and manage multiple priorities
• Continuous improvement mindset