Senior System, Network & Security Engineer

RN Care Pte. Ltd.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

RN Care Pte. Ltd. seeks an experienced IT Infrastructure Manager to oversee the organization’s IT backbone, including servers, network, security systems, and cloud services. You will design, implement, and maintain the IT infrastructure while ensuring high availability and disaster recovery.

The role emphasizes managing AD, DNS, DHCP, and Group Policy, monitoring performance, applying patches, and upholding cybersecurity best practices across the environment.

Qualifications

• Bachelor's degree in Information Technology or a related field.
• Minimum 5 years of experience providing Network, System and Cybersecurity operational support.
• Experience with servers, network and security devices including firewalls, switches, routers, load balancers and wireless solutions.
• Certifications in CCNA/CCNP/CCIE, Microsoft Azure Solutions Architect, and/or Windows Server Administrator, CISSP, CISM and CompTIA Security are required.

Responsibilities

• Oversee IT infrastructure, ensuring performance, security, and reliability of servers, network, security systems, and cloud services.
• Design, implement, and maintain the IT infrastructure of the organization.
• Maintain Windows servers, virtualization platforms, and storage solutions.
• Manage Active Directory, DNS, DHCP, and Group Policy.
• Ensure high availability and disaster recovery with backups and replication.
• Monitor system performance, troubleshoot issues, and apply patches and updates.
• Implement network design, configure, and maintain LAN, WLAN, and VPN infrastructure, with firewalls, switches, and routers.
• Implement and monitor network security policies, intrusion detection, and access control.
• Optimize network performance and ensure redundancy.
• Implement cybersecurity best practices, monitor threats, and manage endpoint protection and vulnerability assessments.
• Ensure compliance with regulations.
• Conduct security audits and enforce policies on user access, encryption, and authentication.
• Create and maintain network documentation and procedures.
• Carry out other tasks as assigned by management.

Skills

IT infrastructure

Cloud services

Active Directory

Security

Networking

Disaster recovery

Cybersecurity

Education

Bachelor's degree in Information Technology

Tools

CCNA/CCNP/CCIE

Microsoft Azure Solutions Architect

CISSP

CISM

CompTIA Security+

Job description

RN Care Pte. Ltd. seeks an experienced IT Infrastructure Manager to oversee the organization’s IT backbone, including servers, network, security systems, and cloud services. You will design, implement, and maintain the IT infrastructure while ensuring high availability and disaster recovery.

The role emphasizes managing AD, DNS, DHCP, and Group Policy, monitoring performance, applying patches, and upholding cybersecurity best practices across the environment.