Senior Network & Systems Engineer - HA, GPON & ELV Infra

AEQON TJ PTE. LTD.

Singapore

On-site

SGD 60,000 - 90,000

Full time

14 days+

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Job summary

AEQON TJ PTE. LTD. in Singapore is seeking a hands-on Network Engineer to design, implement, configure, test and commission comprehensive network and systems infrastructure for ELV and infrastructure projects.

You will work on topology, IP addressing, VLANs, routing and redundancy to ensure reliable operations. The role requires experience with enterprise switches, routers and firewalls, GPON fibre, server installations, virtualization and HA.

Qualifications

Diploma or Degree in IT or related discipline.
3–5 years of relevant experience in network, systems, ELV or infrastructure projects.
Strong TCP/IP networking, IPv4 addressing, subnetting, VLANs and routing.
Hands-on experience with enterprise managed switches.
Knowledge and experience with GPON and fibre network architecture.

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, bandwidth and redundancy requirements.
Configure and troubleshoot Layer 2/3 managed switches, including VLANs, trunking, STP/RSTP/MSTP, LACP, switch stacking and routing.
Configure and troubleshoot routers, firewalls and network security policies, including segmentation, access control and secure system connectivity.
Design and implement High Availability (HA) and network redundancy, including redundant paths, uplinks, switch stacking, link aggregation and failover mechanisms.
Install, configure and troubleshoot physical and virtual servers, including 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 and support 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.