Senior Software Engineer – Cluster Networking

NVIDIA

. Own and evolve the Kubernetes networking architecture for GPU clusters running at multi-thousand-node scale .

Posted 9/15/2026full-timeRemote • California • United StatesSenior💰 $184,000 - $287,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Expertise in Kubernetes Networking Architecture and CNI Standards, with a strong focus on designing and operating large-scale networking topologies. Proficient in debugging distributed network issues and collaborating effectively with cross-functional teams.

Highest-signal resume keywords

Kubernetes Networking ArchitectureCNI StandardsGo ProgrammingLinux Networking FundamentalsHigh-Performance Fabrics

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

KubernetesCNICalicoTailscaleWireGuardGoPythonCPacket CaptureDebugging Distributed Networks

Soft Skills

Clear CommunicationCollaboration Across Time Zones

Tools & Technologies

EnvoyCloudflareSlurmInfiniBandRoCERDMA

Industry Keywords

AIHPCNetworking TopologiesOverlay NetworkLoad Balancers

Tech Stack

Tools & technologies

CloudKubernetesLinuxNode.jsPythonGo

About the role

Key responsibilities & impact

Own and evolve the Kubernetes networking architecture for GPU clusters running at multi-thousand-node scale
Design, operate and scale the overlay network - CNI, mesh and VPN topologies (Tailscale, WireGuard), and the gateways that connect control and data planes
Design, operate and scale the L7 gateways/load balancers/tunnels (Envoy, Cloudflare)
Find and eliminate scale ceilings: packet loss under load, control-plane saturation, IP address management exhaustion, and failure modes above a few thousand nodes
Build scale-test environments and validation suites to catch networking regressions before production
Diagnose hard, ambiguous problems across the stack, tracing symptoms in Slurm or training jobs to networking root causes
Partner with cloud and neocloud providers on network topology, requirements and capabilities for new clusters
Provide senior technical judgement to a distributed team in the Cluster Networking domain

Requirements

What you’ll need

BS/MS in Computer Science, Electrical Engineering or a related field, or equivalent experience
6+ years of professional experience in systems, network or infrastructure software engineering
Deep command of Kubernetes networking architecture and CNI standards, with production experience operating Calico strongly preferred
Proficiency designing and maintaining modern mesh and VPN networking topologies - Tailscale, WireGuard or equivalent
Strong Linux networking fundamentals: routing, netfilter and iptables/nftables, packet marking, network namespaces, and how these interact with container runtimes
Demonstrated ability to debug distributed network problems at scale - packet capture, tracing, and correlating behaviour across many hosts to find a single root cause
Proficiency in Go, Python, C or a comparable systems language
Clear written and verbal communication, and the ability to work effectively with engineers across multiple time zones
Direct experience architecting and operating massive-scale Kubernetes topologies across thousands of concurrent nodes
Experience with high-performance fabrics in AI or HPC environments - InfiniBand, RoCE, or RDMA over converged networks
Upstream contributions to Calico, Cilium, Tailscale, or Kubernetes networking SIGs
Experience operating networking across multiple public clouds and on-premises environments simultaneously
Familiarity with Slurm or other HPC schedulers running on Kubernetes

Benefits

Comp & perks

Equity
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