Network Engineer

Company Description The ITSEC Group is one of the leading cybersecurity organizations in the Asia Pacific region, with a strong presence in Singapore, Jakarta, Dubai, Melbourne, and Bangkok. The company focuses on delivering advanced security solutions and services to help organizations protect their critical assets and data. Team members collaborate across regional offices, bringing together deep technical expertise and local market knowledge. Joining The ITSEC Group offers the opportunity to work on complex, real-world cybersecurity challenges in a dynamic and rapidly evolving environment. Role Description This is a full-time, on-site Network Engineer role based in Singapore. We are seeking a skilled and motivated Network Engineer to support the design, implementation, maintenance, and optimisation of enterprise network infrastructure. The successful candidate will play a critical role in ensuring secure, reliable, and high-performing connectivity across the organisation's IT environment. This role is ideal for individuals with strong technical knowledge in networking technologies, cybersecurity practices, and infrastructure operations who are passionate about delivering stable and secure network services.

Key ResponsibilitiesNetwork Design & Implementation

Implement and support LAN, WAN, WLAN, and cloud networking solutions

Configure and maintain routers, switches, firewalls, load balancers, and related network devices

Implement network segmentation including VLANs, subnets, and VPN solutions

Support SD-WAN and hybrid cloud networking deployments where applicable

Develop and maintain network architecture diagrams and technical documentation

Network Operations & Maintenance

Monitor network performance, availability, and utilisation

Perform routine maintenance, firmware upgrades, and patch management

Manage IP addressing services including DHCP, DNS, and IPAM

Ensure redundancy and failover mechanisms are operational

Maintain backup configurations and recovery procedures

Security & Compliance

Configure and manage firewalls, IDS/IPS, and network access controls

Implement secure remote access solutions including VPN and Zero Trust access models

Conduct vulnerability assessments and support remediation activitites

Ensure compliance with organisational security policies and regulatory requirements

Monitor security logs and investigate network-related security incidents

Troubleshooting & Support

Diagnose and resolve network connectivity and performance issues

Provide support for network-related incidents and service requests

Conduct root cause analysis (RCA) and recommend preventive improvements

Collaborate with infrastructure, application, and cybersecurity teams

Network Optimisation

Analyse network performance metrics and recommend improvements

Optimise bandwidth usage and Quality of Service (QoS) policies

Support network upgrades, expansion projects, and capacity planning

Contribute to continuous improvement initiatives

Documentation & Reporting

Maintain up-to-date network diagrams, inventories, and operational documentation

Document configurations, procedures, and implemented changes

Prepare periodic performance, incident, and compliance reports

Update operational runbooks and knowledge base articles

Requirements

Education & Certifications

Diploma or Degree in Information Technology, Computer Engineering, Network Engineering, or related field

Relevant certifications such as CCNA, CCNP, PCNSA, NSE, or equivalent will be advant ageous

Technical Skills & Experience

Minimum 2–5 years of experience in network engineering or infrastructure support

Hands-on experience with networking technologies and protocols including TCP/IP, routing, switching, VPN, and VLANs

Experience with enterprise network and security devices such as Cisco, Palo Alto, Check Point, or equ ivalent

Familiarity with network monitoring and management tools such as SolarWinds or eG Enterprise

Knowledge of firewall administration, IDS/IPS, SIEM, and cybersecurity best practices

Exposure to cloud and virtualisation platforms such as VMware and Nutanix is an advantage

Strong troubleshooting, analytical, and problem-solving skills

SoftSkills

Good communication and interpersona l skills

Ability to work independently and collaboratively in a team environment

Strong documentation and reportin g skills

Ability to manage multiple priorities in a fast-paced environment

Working Conditions

May be required to perform after-hours maintenance or support a ctivities

Participation in standby or on-call support rotation may be required