Network Engineer - Enterprise & Hybrid Cloud Networking

OX CONSULTANCY PTE. LTD.; Singapore; On-site; SGD 120,000 - 190,000; Full time

Job summary

OX CONSULTANCY PTE. LTD. seeks a senior Network Architect to design, implement, and support expansive enterprise networks across LAN/WAN, data centres, and cloud connectivity.

You will architect hybrid solutions integrating on-prem with GCC/GCC+ and Azure, configuring ExpressRoute, VPN, MPLS, and SD-WAN, while ensuring security, high availability, DR, and performance across multiple projects.

Qualifications

• Minimum 8-10 years in enterprise network engineering.
• At least 5 years in network architecture, design or consultancy.
• Strong hands-on experience with large-scale on-premises networks, data centres, routing and wireless infra.
• Proven track record in hybrid cloud networking with Azure and GCC/GCC+.
• Experience with ExpressRoute, VPN Gateway, MPLS, SD-WAN or equivalent.
• Familiarity with IPAM, network monitoring and troubleshooting.
• Experience with Singapore Government ICT policies and cloud governance is desirable.

Responsibilities

• Design, implement, and support enterprise LAN/WAN, campus networks, data centres, wireless, Internet edge and DMZ architectures.
• Develop network architecture and hybrid cloud connectivity integrating on-prem with GCC/GCC+ and Azure.
• Design and manage ExpressRoute, Site-to-Site VPN, MPLS, SD-WAN and other hybrid connectivity solutions.
• Implement and maintain segmentation, high availability, DR, load balancing, proxies, and security controls.
• Configure routing/switching protocols (BGP, OSPF, VLAN, VXLAN, VRRP/HSRP, QoS, IPv4/IPv6, NAT).
• Support Azure networking services (Azure Firewall, App Gateway, WAF, NSG, Front Door, VNet/Hybrid DNS).
• Conduct design reviews, architecture governance, and performance monitoring across projects.
• Support procurement, technical evaluation, and vendor coordination.
• Ensure compliance with cybersecurity requirements, ICT policies, and cloud governance standards.

Skills

Enterprise networking

Network architecture

Hybrid cloud networking

Azure

Routing protocols

Security controls

Documentation

Stakeholder mgmt

Singapore policies

Job description

Key Responsibilities

• Design, implement, and support enterprise LAN/WAN, campus networks, data centre networks, wireless infrastructure, Internet edge, and DMZ architecture.
• Develop network architecture and hybrid cloud connectivity solutions integrating on-premises infrastructure with GCC/GCC+ and Microsoft Azure.
• Design and manage ExpressRoute, Site-to-Site VPN, MPLS, SD-WAN, and other hybrid connectivity solutions.
• Implement and maintain network segmentation, high availability, disaster recovery, load balancing, reverse proxies, and network security controls.
• Configure and troubleshoot routing and switching protocols, including BGP, OSPF, VLAN, VXLAN, VRRP/HSRP, QoS, IPv4/IPv6, and NAT.
• Support Azure networking services, including Azure Firewall, Application Gateway, WAF, NSG, Front Door, Virtual WAN, DNS, and hybrid name resolution.
• Conduct network design reviews, architecture governance, technical assurance, and performance monitoring across multiple projects.
• Support network infrastructure procurement, technical evaluation, and vendor and service-provider coordination.
• Ensure compliance with applicable cybersecurity requirements, ICT policies, and cloud governance standards.

Requirements

• Minimum 8-10 years of experience in enterprise network engineering, including at least 5 years in network architecture, solution design, or technical consultancy.
• Strong hands-on experience with large-scale on-premises enterprise networks, data centres, routing, switching, and wireless infrastructure.
• Proven experience designing and supporting hybrid cloud networking with Microsoft Azure and GCC/GCC+ environments.
• Strong knowledge of enterprise routing, switching, network security, segmentation, high availability, and disaster recovery.
• Experience with ExpressRoute, VPN Gateway, MPLS, SD-WAN, or equivalent hybrid connectivity technologies.
• Familiarity with IP Address Management (IPAM), network monitoring, performance management, and network troubleshooting.
• Experience working with Singapore Government agencies or Statutory Boards is highly desirable.
• Knowledge of Singapore Government ICT policies, cybersecurity requirements, cloud governance, and network infrastructure procurement is an advantage.
• Strong technical documentation, stakeholder management, and communication skills.