Senior Enterprise Network Architect - Hybrid Cloud & GCC/GCC+

Xtremax; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Xtremax is seeking a Network Engineer to design, implement, support, and improve large-scale on-premises and hybrid network infrastructure spanning campus networks, data centres, WAN, Internet edge, wireless environments, and cloud connectivity.

You will work across network architecture, solution design, technical assurance, and operations, with exposure to ExpressRoute, Site-to-Site VPN, VLAN, VXLAN, Azure Firewall, and disaster recovery in GCC/GCC+ environments.

Qualifications

• 10+ years of experience in enterprise network engineering or related field.
• Experience designing and supporting large-scale on‑premises enterprise networks.
• Strong knowledge of campus LAN/WAN, data centre, Internet edge, DMZ, and wireless environments.
• Experience with hybrid connectivity (ExpressRoute, Site-to-Site VPN, MPLS, SD-WAN) and Azure networking.

Responsibilities

• Design, implement, and support large-scale enterprise network infrastructure across campus, data centre, WAN, Internet edge, and wireless environments.
• Develop network architectures and technical solutions covering routing, switching, segmentation, high availability, disaster recovery, and secure connectivity.
• Design and support hybrid network architectures integrating on-premises infrastructure with GCC and GCC+ cloud environments.
• Configure and troubleshoot enterprise routing and switching technologies including OSPF, BGP, VRRP/HSRP, VLAN, VXLAN, QoS, MPLS, IPv4/IPv6, and NAT.
• Design and support hybrid connectivity using ExpressRoute, Site-to-Site VPN, MPLS, SD-WAN, and Direct Connect or equivalent
• Design and maintain Azure networking and security components including Azure Firewall, Application Gateway, WAF, NSG, Front Door, and Virtual WAN
• Support data centre network architecture across core, distribution, and access layers, including network segmentation and redundancy
• Troubleshoot physical and logical network issues involving switches, wireless controllers, access points, copper and fibre cabling, patch panels, and end-user connectivity
• Manage network incidents through prioritisation, escalation, root-cause coordination, resolution tracking, trend analysis, and management reporting
• Participate in network design reviews, architecture governance, technical assurance, and technical consultancy across concurrent initiatives

Skills

Networking design

Solution design

Technical consultancy

Network architecture

Incident management

Governance

Education

CCNA certification

Tools

Azure networking

ExpressRoute

MPLS

SD-WAN

Site-to-Site VPN

Job description

Xtremax is seeking a Network Engineer to design, implement, support, and improve large-scale on-premises and hybrid network infrastructure spanning campus networks, data centres, WAN, Internet edge, wireless environments, and cloud connectivity.

You will work across network architecture, solution design, technical assurance, and operations, with exposure to ExpressRoute, Site-to-Site VPN, VLAN, VXLAN, Azure Firewall, and disaster recovery in GCC/GCC+ environments.