Senior Network & Systems Engineer: HA, GPON & Infra

Exeo Global Pte Ltd

Singapore

On-site

SGD 60,000 - 110,000

Full time

14 days+

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Job summary

Exeo Global Pte Ltd is seeking a hands-on Network & Infrastructure Engineer to design, implement and support ELV and infrastructure projects in Singapore. You will configure routers, switches, firewalls, GPON, and servers, ensuring HA, security, and reliable operation across on-site environments.

The role requires strong troubleshooting, collaboration with project teams and vendors, and participation in testing, commissioning, and handover activities. On-site presence in Singapore is expected.

Qualifications

Diploma/Degree in IT or network engineering, or related field.
3–5 years of relevant experience in network, ELV or infrastructure projects.
Strong understanding of TCP/IP networking, IPv4 addressing, subnetting, VLANs, Layer 2 / Layer 3 switching and routing.
Hands-on experience in configuration and troubleshooting of enterprise managed network switches.
Good understanding of network architecture, network segmentation, High Availability, redundancy and failover concepts.
Knowledge and experience in server installation and configuration, including Windows Server and virtualization environments.
Working knowledge of GPON and fibre network architecture.
Ability to understand system architecture and the interaction between network infrastructure, servers, storage and ELV applications.
Strong troubleshooting and analytical skills with the ability to diagnose issues across network, server and system layers.
Ability to interpret project specifications, system architecture diagrams, network diagrams and technical requirements.
Strong interpersonal, customer management and communication skills.
A good team player with the ability to multi-task.
Driven, self-motivated and able to work independently.
Willing to provide on-site technical support and participate in testing and commissioning activities when required.

Responsibilities

Design, implement, configure, test and commission network and systems infrastructure for ELV and infrastructure projects.
Develop and review network architecture, including topology, IP addressing, subnetting, VLANs, routing and redundancy requirements.
Configure and troubleshoot Layer 2/3 managed switches, VLANs, trunking, STP/RSTP/MSTP, LACP.
Configure and troubleshoot routers, firewalls and network security policies.
Design HA and network redundancy, including redundant paths, uplinks, switch stacking, link aggregation and failover mechanisms.
Install, configure and troubleshoot Windows Server, virtualization, NIC teaming, storage and RAID.
Support the design, configuration and troubleshooting of GPON and fibre infrastructure, including OLT, ONT/ONU and optical splitters.
Integrate network and server infrastructure with ELV systems including CCTV, VMS, Access Control, Intrusion Detection and other IP-based systems.
Perform troubleshooting and root cause analysis across network, server and application layers, coordinating with vendors/principals where required.
Conduct UAT, SAT, integration testing, performance testing and system commissioning.
Review technical designs to identify capacity constraints, cybersecurity risks, single points of failure and other technical risks.
Prepare and maintain technical documentation including network diagrams, IP/VLAN schedules, switch/firewall/server configurations, system architecture, configuration backups, test reports and as-built documentation.
Provide technical support and guidance to Project Managers, Project Engineers and site teams throughout implementation, testing, commissioning and handover.
Participate in technical discussions, design reviews and project meetings with customers, consultants, contractors, vendors and principals.
Support pre-sales activities including technical evaluation, solution design, equipment selection and preparation of network and systems architecture.