DC Network Lead

PT Leap Digital Indonesia; Jakarta Pusat; On-site; IDR 700,000,000 - 1,000,000,000; Full time

Job summary

PT Leap Digital Indonesia seeks a Network Lead to manage and support a high-density GPU data centre network. You will oversee InfiniBand/RoCE fabrics, spine-leaf topologies, and segmentation networks to ensure optimal performance for compute workloads.

The role requires 7–11 years in data centre networking, hands-on experience with high‑performance fabrics, and strong routing knowledge (BGP/OSPF). You will coordinate maintenance windows, security controls, and vendor collaboration.

Qualifications

• 7–11 years of experience in data centre networking or related infra.
• Hands-on work with GPU/HPC networking environments.
• Experience with InfiniBand and RoCE-based networking and fabric management.

Responsibilities

• Operate and support high-performance network fabrics interconnecting GPU compute infrastructure.
• Manage fabric topology, congestion control, link health, and performance.
• Monitor health indicators, identify issues, and drive remediation.
• Support spine-leaf fabrics, overlay networks, routing, and segmentation.
• Work with EVPN/VXLAN, BGP, OSPF, and related DC networking tech.
• Coordinate maintenance, changes, and incident resolution across the GPU platform.
• Upgrade firmware, perform configuration, and validate hardware connectivity.
• Validate cabling, optics, and DAC/AOC connections for reliability.
• Coordinate with vendors and support teams for complex incidents.
• Contribute to network security policy implementation and access controls.

Skills

Data centre networking

InfiniBand/RoCE

Spine-leaf architectures

Network monitoring

Troubleshooting

EVPN/VXLAN

BGP/OSPF

Security policies

Job description

The Network Lead is responsible for the operational management and technical support of network infrastructure within a high-density GPU data centre environment. The role covers GPU cluster interconnects, data centre network fabric, management and segmentation networks, network monitoring, troubleshooting, security, capacity management, and coordination of network maintenance activities.

Key responsibilities

Operate and support high-performance network fabrics used to interconnect GPU compute infrastructure, including InfiniBand and/or RoCE-based environments.

Manage and monitor network fabric topology, fabric management functions, congestion control, link health, and network performance.

Monitor network health indicators and link error conditions, identify potential issues, and drive proactive remediation where required.

Support data centre network architectures, including spine-leaf fabrics, overlay networks, routing, and management network segmentation.

Support technologies and environments such as EVPN/VXLAN, BGP, OSPF, and related data centre networking technologies.

Manage network incidents, changes, and problem resolution activities across the GPU platform, including participation in maintenance windows and change governance processes.

Perform network equipment firmware upgrades, configuration activities, and hardware or connectivity validation.

Validate network cabling, optics, DAC/AOC connections, and other physical network components to maintain reliable connectivity.

Coordinate with equipment vendors, OEMs, and technical support teams for hardware failures, complex incidents, and infrastructure maintenance.

Support the implementation and review of network security policies, segmentation, and access controls in accordance with applicable standards.

About you

7-11 years of experience in data centre networking, network engineering, network operations, or related infrastructure environments.

Strong hands‑on experience with high-performance data centre network fabrics supporting GPU, HPC, or similarly demanding compute environments.

Experience with InfiniBand and/or RoCE-based networking, including fabric operation, monitoring, performance management, and troubleshooting.

Experience with fabric management, topology management, congestion control, and network performance optimisation.

Strong understanding of data centre switching and network fabric architecture, including spine-leaf designs.

Experience with network overlays and data centre technologies such as EVPN/VXLAN.

Strong knowledge of routing protocols including BGP and OSPF, with exposure to WAN/network connectivity technologies such as MPLS.

Experience with network segmentation, management networks, and access control implementation.

Experience with network security and firewall policy management, including enterprise firewall environments.

Strong packet‑level troubleshooting capabilities, including analysis of connectivity, performance, and network errors.