Staff Network Engineer (AI Fabric, Datacenter and Edge Networking) - Radian Arc

Radian ArcNetherlandsRemoteFull-time4 weeks ago

Radian Arc is seeking a Staff Network Engineer to design, implement, and operate network infrastructure for its GPU cloud platform, including high-performance AI fabrics and datacenter networking. The role combines Staff-level architectural ownership with hands-on execution, acting as the primary networking authority in a remote, full-time position. Deep expertise in RoCE, RDMA, BGP, EVPN/VXLAN, and large-scale GPU cluster networking is required.

What you'll do

Design and operate high-performance GPU networking fabrics supporting distributed AI workloads.
Architect large-scale RoCE fabrics optimized for distributed training and inference.
Optimize network performance for GPU communication patterns and east-west traffic.
Design fabric topologies such as leaf-spine, fat-tree, rail architectures, multi-plane, RDMA, RoCE, high-bandwidth east-west fabrics, Spectrum-X.
Collaborate with compute teams to support distributed training frameworks and GPU communication libraries.
Define reference architectures and design principles for AI fabrics.
Evaluate architectural trade-offs across performance, resilience, cost, operability, and deployment speed.
Design and operate Layer-2 and Layer-3 datacenter networks.
Implement scalable routing architectures based on BGP and ECMP.
Design tenant network isolation mechanisms across multi-tenant environments.
Implement and maintain network bridges, routing stacks, overlay networking systems.
Maintain north-south ingress/egress routing and traffic management.
Define standards and reusable patterns for segmentation, routing, and overlay integration.
Deploy and maintain north-south security infrastructure.
Implement WAF and application-layer protections.
Integrate security controls with platform services.
Design and operate private interconnects between datacenters.
Implement and maintain dark fiber ring architectures.
Operate high-capacity WAN connectivity between regions.
Integrate datacenter fabrics into a global backbone network.
Define scalable design principles for backbone evolution, inter-site routing, redundancy, and failure-domain isolation.
Lead end-to-end engineering delivery of networking infrastructure.
Validate network BOMs together with procurement and deployment teams.
Provide detailed input into datacenter layouts and rack elevations.
Drive capacity planning, performance modeling, and scaling strategies.
Ensure network changes are executed safely with minimal customer impact.
Act as both architectural owner and practical execution lead for critical network initiatives.
Establish deployment standards, validation criteria, rollback approaches, and acceptance patterns.
Own operational performance and reliability of networking infrastructure.
Drive automation for provisioning, configuration management, monitoring, lifecycle management.
Improve day-2 operations through automation and operational tooling.
Lead incident response and root-cause analysis for major network events.
Define and track SLAs, SLOs, and reliability metrics.
Translate major incidents and operational pain points into durable standards, design changes, and long-term architectural improvements.
Establish measurable benchmarks for reliability, latency consistency, operability, and recovery behavior.
Work closely with infrastructure, platform, SRE, compute, storage, observability, and datacenter operations teams.
Provide technical leadership across infrastructure initiatives.
Communicate architectural decisions, trade-offs, and risks clearly to stakeholders.
Influence the long-term platform networking roadmap and architecture.
Act as the primary networking design authority across the organization.
Raise the technical bar by mentoring engineers in adjacent domains.

What you need

Must-have

BGPOSPFECMPEVPN/VXLANRoCERDMANCCLPFC

Soft skills

technical leadershipcross-functional collaborationsystems-level thinkingmentoringcommunicationproblem solving

Staff Network EngineerAI InfrastructureDatacenter NetworkingEdge NetworkingGPU CloudRoCERDMABGPRemoteFull-time

/What you'll do

/What you need

Must-have

Soft skills

What you'll do

What you need