Network Engineer

GMP TECHNOLOGIES (S) PTE LTD; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

GMP Technologies (S) Pte Ltd is seeking an experienced Network Engineer to manage and support enterprise network infrastructure in a 24x7 production environment. You will install, configure and maintain network hardware and software, including user access and permissions, while ensuring health, availability and performance of the network.

You will design and support hybrid connectivity to AWS, manage VPCs, subnets, security groups and VPN/Direct Connect, and work with Security Operations on

Qualifications

• Degree in Computer Science, Information Technology, Engineering or related discipline.
• Minimum 3 years of experience in network engineering/operations for enterprise or large-scale environments.
• Hands-on AWS networking experience (VPC, subnets, route tables, security groups, VPN, Direct Connect).
• Strong knowledge of TCP/IP, routing, switching, DNS, VPN, HA, and DR design.
• Experience with enterprise firewalls (Palo Alto, Fortinet, Check Point) and with network troubleshooting tools such as Wireshark/Traceroute.

Responsibilities

• Manage and support enterprise network infrastructure in a 24x7 production environment.
• Install, configure and maintain network hardware/software, including access control.

Skills

Network design

Troubleshooting

AWS networking

Firewall management

Load balancers

BGP/OSPF

VPC/Subnets

Security groups

Monitoring tools

Education

Degree in CS/IT/Engineering

Tools

SolarWinds

PRTG

CloudWatch

Wireshark

Traceroute

Job description

Responsibilities:

• Manage and support enterprise network infrastructure, including routers, switches, firewalls and load balancers in a 24x7 production environment.
• Install, configure and maintain network hardware and software, including user access, authentication and permission management.
• Monitor network health, availability and performance, conduct routine maintenance, and perform capacity planning.
• Design, implement and support hybrid connectivity between on-premises data centres and AWS cloud environments.
• Configure and manage AWS networking components, including VPCs, subnets, route tables, security groups, Network ACLs, VPNs and Direct Connect.
• Troubleshoot hybrid cloud connectivity issues and coordinate with telecommunications providers where required.
• Configure and manage firewalls, network segmentation, security zoning and access controls in accordance with IM8/government standards and PCI DSS requirements where applicable.
• Collaborate with Security Operations teams on vulnerability remediation, system hardening and incident response activities.
• Monitor network performance using SolarWinds, PRTG, CloudWatch or equivalent monitoring tools, and proactively identify and resolve performance bottlenecks.
• Investigate and resolve network outages, connectivity issues, latency and packet loss while participating in major incident management and root cause analysis.
• Implement network changes in accordance with Change Advisory Board (CAB) processes, including validation, rollback planning and deployment support.
• Manage network connectivity with external partners, payment gateways and telecommunications providers, including vendor coordination and service provisioning.
• Design and support network redundancy, disaster recovery and business continuity solutions, and participate in disaster recovery exercises.
• Maintain accurate network documentation, including network diagrams, configuration records, SOPs and operational runbooks.
• Recommend continuous improvements to enhance network performance, security and scalability.
• Provide after-hours operational support for planned maintenance, firmware and software upgrades, critical incidents and emergency network changes.

Requirements:

• Degree in Computer Science, Information Technology, Engineering or a related discipline.
• Minimum 3 years of experience in network engineering or network operations supporting enterprise or large-scale mission-critical environments across on-premises and cloud infrastructure.
• Hands-on experience with AWS networking, including VPC, subnets, route tables, security groups, Network ACLs, VPN and Direct Connect. Experience with Azure or Google Cloud Platform is an advantage.
• Strong knowledge of TCP/IP, Layer 2/Layer 3 networking, routing, switching, DNS, DHCP, BGP, OSPF, VPN technologies, network security, high availability and disaster recovery design.
• Hands-on experience with enterprise firewalls such as Palo Alto, Fortinet or Check Point, as well as load balancers and network troubleshooting tools including Wireshark, Ethereal and Traceroute.
• Professional certifications such as Cisco CCNA/CCNP, Check Point CCSA/CCSE, Fortinet FCA/FCP or AWS CloudOps Engineer - Associate will be an advantage.
• Strong analytical, troubleshooting and problem-solving skills, with the ability to perform effectively in high-pressure production environments.
• Excellent communication and stakeholder management skills with a proactive, accountable and collaborative working style.
• Willingness to provide after-hours support for production incidents, maintenance activities and network deployments.

GMP Technologies (S) Pte Ltd | EA Licence: 11C3793 | EA Personnel: Lai Yingying | Registration No: R1110239