Network Infra Specialist

Flintex Consulting Pte Ltd; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading IT consulting firm in Singapore seeks a Network Infrastructure Specialist to manage and support IT infrastructure systems across the school campus. The role includes resolving technical issues, enhancing cloud adoption, and implementing network optimizations. Ideal candidates have a Diploma/Degree in IT and at least 3 years of infrastructure support experience. The position offers a dynamic working environment with professional growth opportunities.

Qualifications

• Relevant IT experience in deploying or managing network infrastructure.
• Highly self-motivated and detail-oriented.
• Ability to effectively prioritise tasks under pressure in a collaborative environment.
• Excellent verbal and written English skills.
• Strong interpersonal communication skills.
• At least 3 years of working experience in IT Infrastructure Support.

Responsibilities

• Manage the entire IT infrastructure including networks and servers.
• Provide Level 2 and higher support for IT incidents.
• Configure and troubleshoot network equipment for optimal performance.
• Apply and enforce firewall rules to protect systems.
• Monitor and optimise network performance and troubleshoot issues.
• Plan and execute IT infrastructure projects.

Skills

Microsoft Windows Server Operating System

VMware Virtualisation

Cisco IOS, network switch, network router, WLC and IP Telephony

Fortigate Firewalls

VLANS, DHCP and DNS

Microsoft Entra Directory

Microsoft Office 365 and Google Workspace

Education

Diploma/Degree in an IT-related discipline

Job description

Position Objective

• The Network Infrastructure Specialist manages and supports the IT infrastructure systems and operations within the school campus. This role includes monitoring infrastructure performance and resolving technical issues. The modernisation of the infrastructure is currently in progress, and additional efforts will be needed to promote the adoption of cloud solutions to enhance the efficiency of school operations.

• You will adopt a critical and analytical approach to solving technical problems. Your responsibilities will include taking preventive measures, monitoring infrastructure operations, receiving incidents reported by the Service Desk, and resolving these incidents. The goal is to minimise disruptions to IT services, ensuring smooth daily operations for the school.

Responsibilities

Key Responsibilities but not limited to:

• Manages the entire infrastructure, including networks, servers, WLC, security systems (Firewall, IPS), and special network services (DHCP, DNS, VLAN, Routing Protocols)
• Provide Level 2 and higher support for IT infrastructure‑related incidents. Address reported incidents and manage escalations until a workaround is identified and normal service is restored. Update the incident status in the IT Service Desk System. If an incident remains unresolved, escalate it to Level 3 following established procedures.
• Configure, manage, and troubleshoot Switches, WLC, Firewall and other network equipment to ensure optimal network performance and proactively resolve any issues before they affect IT services.
• Apply and enforce firewall rules (FortiGate) and security configurations to protect systems from cybersecurity threats
• Manage Layer 2 and Layer 3 switch configurations (Cisco) for effective network traffic routing and segmentation
• Perform regular firmware and operating system updates on network equipment and servers to enhance security and functionality
• Monitor and optimise network performance, troubleshoot connectivity issues, analyse network traffic for potential concerns and implement capacity expansion to reduce the risk of service disruptions.
• Plan and execute IT infrastructure projects, including provisioning new systems, upgrading existing infrastructure, and deploying new services. The Senior IT infrastructure Specialist is expected to lead and deliver the projects.
• Document the design and configuration of the IT infrastructure, ensuring that the documentation is kept up to date for operational reference.
• Continue to grow professionally by learning new technologies and techniques and keeping current with best IT practices.
• Perform other duties as directed by the Head of IT Operations and Business Partnering, or such persons as the school may designate.

Position Requirements

Good knowledge in some of these areas:

• Microsoft Windows Server Operating System
• VMware Virtualisation
• Cisco IOS, network switch, network router, WLC and IP Telephony
• Fortigate Firewalls
• VLANS, DHCP and DNS
• Microsoft Entra Directory
• Microsoft Office 365 and Google Workspace

• Relevant IT experience in deploying or managing network infrastructure and services.
• Highly self‑motivated and detail oriented.
• Ability to effectively prioritise tasks under pressure, and experience in working in a team‑oriented and collaborative environment.
• Excellent verbal and written English skills.
• Strong interpersonal communication skills.
• At least 3 years of working experience in IT Infrastructure Support

Advantage if you have:

• ITIL related certifications
• Microsoft and Cisco related certifications
• Microsoft Cloud Computing related experiences and certifications
• Project Management related experiences and certifications

Qualifications

• Minimum of Diploma/Degree in an IT‑related discipline

Working hours

Mon to Fri, 8am to 5pm