What you'll be doing

AI & High-Performance Network Architecture

• Define, design, validate, and evolve large-scale InfiniBand, RoCE, and Ethernet fabric architectures at rack, row, and data centre scale.
• Design networks that integrate closely with bare-metal provisioning and cluster management systems.
• Own technical direction for high-performance Ethernet fabrics, including BGP, EVPN, VXLAN, LACP, and QoS.
• Establish reference architectures and engineering standards that can be implemented consistently across Nscale's data centre estate.
• Identify systemic risks and architectural gaps and drive durable solutions that improve scalability, reliability, and operational simplicity.
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Network Automation & Infrastructure as Code

• Lead Nscale's network automation strategy using a GitOps operating model.
• Build and guide Python and Ansible tooling for provisioning, configuration validation, compliance, and operational workflows.
• Drive version-controlled configuration and CI/CD-based network change across multi-vendor environments.
• Apply Infrastructure-as-Code and Network-as-Code principles to reduce manual intervention and improve operational consistency.
• Continuously identify opportunities to automate repetitive operational tasks and reduce reactive toil.
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Network Security & Edge Infrastructure

• Design and engineer perimeter and network security infrastructure across WAN and data centre edge environments.
• Own architecture across firewalls, NAT, VPN, security policies, and multi-tenant segmentation.
• Design highly available and scalable security architectures appropriate for mission-critical AI infrastructure.
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Reliability, Observability & Operations

• Lead complex technical escalations and root-cause analysis for network performance, reliability, and stability issues.
• Establish measurable SLOs and operational standards for network services.
• Set technical direction for network observability, telemetry, monitoring, and alerting.
• Ensure clear visibility into fabric health, traffic patterns, performance, and capacity.
• Develop runbooks, automation, and engineering improvements that systematically reduce operational toil.
• Act as a senior 3rd/4th line escalation point for complex networking issues.
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