Senior Network Admin – AI Infra (Hybrid)

Sharon AI, Inc; Sydney; Hybrid; AUD 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid working

Birthday leave

Employee Assistance Program (EAP)

Exposure to AI & next-gen tech

Career growth opportunities

Growing global business

Make an impact

Collaborative culture

Job summary

Sharon AI, Inc is seeking a Senior Network Administrator to lead complex data centre networking and AI fabric troubleshooting in a hybrid Sydney-based role. You will work closely with NOC, Infrastructure and Platform Operations teams and contribute to performance optimization across global environments.

The role emphasizes L3 technical escalation, automation, and operational runbooks, with occasional data centre travel and after-hours on-call duties.

Qualifications

• 5–7 years of hands-on data centre networking or infrastructure support.
• Strong routing, switching and data centre network architecture knowledge.
• Experience resolving complex incidents and restoring production services.
• Familiarity with leaf-spine, BGP and EVPN/VXLAN.
• Clear communication and collaboration across technical teams.
• Proactive, analytical approach to performance, security and continuous improvement.

Responsibilities

• Operate, configure and troubleshoot production data centre routing, switching and network services.
• Support InfiniBand, Ethernet and RoCE/RDMA fabrics for GPU/HPC workloads.
• Diagnose leaf-spine, BGP, EVPN/VXLAN, VLAN and host connectivity issues.
• Investigate latency, congestion, packet loss, MTU, QoS, PFC and ECN issues.
• Lead L3 escalations and root-cause analysis for complex incidents.
• Maintain monitoring, telemetry, configurations, firmware and runbooks.
• Coordinate hardware maintenance and vendor escalations.
• Build scripts and automation to improve reliability and diagnostics.
• Guide L1/L2 colleagues and strengthen team troubleshooting.

Skills

Data centre networking

Routing & Switching

BGP

EVPN/VXLAN

Latency & Troubleshooting

Team guidance

Operational ownership

Tools

Automation scripting

InfiniBand

Job description

Sharon AI, Inc is seeking a Senior Network Administrator to lead complex data centre networking and AI fabric troubleshooting in a hybrid Sydney-based role. You will work closely with NOC, Infrastructure and Platform Operations teams and contribute to performance optimization across global environments.

The role emphasizes L3 technical escalation, automation, and operational runbooks, with occasional data centre travel and after-hours on-call duties.