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Roblox

Senior

Bootstrap a new Kubernetes networking domain for Roblox's ML training/inference infrastructure

Design a Senior Software Engineer interview for a brand-new Kubernetes Networking team at Roblox, tasked with founding the networking layer for a high-performance ML training/inference compute cluster. Focus on deep Kubernetes networking expertise, hands-on Cilium/eBPF experience, and comfort setting technical direction from zero.

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这场面试考什么

  • Kubernetes networking architecture (ingress, service mesh)
  • Cilium and eBPF hands-on expertise
  • Founding new infrastructure from high ambiguity
  • Networking considerations for ML training/inference workloads
  • On-call ownership of critical infrastructure systems

常见提问方向

Explain how eBPF/Cilium-based networking differs from traditional iptables approaches and why it matters at scale

Tell me about a time you set the technical strategy for a brand-new system with no existing architecture

How would you design a Kubernetes networking layer for a high-throughput ML training cluster

Describe a critical on-call incident in a networking or infrastructure system you owned

How do you mentor engineers while also driving execution on a 0-to-1 team

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