Keep the world's largest edge network fast, observable, and safe at internet scale

Cloudflare's Infrastructure Engineering team (Bengaluru) is hiring a systems/reliability engineer for the Edge platform — the software and automation behind one of the internet's largest distributed networks. Expect deep Linux/distributed-systems work, an on-call rotation, and networking depth from L3-7 up through BGP.

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What this interview tests

Distributed Linux/Unix systems at internet scale
Networking depth: OSI layers 3-7, load balancing, reverse proxies, BGP
Software development for edge/network infrastructure (Go, Python)
On-call ownership of a high-priority reliability rotation
Performance analysis, debugging, and troubleshooting production systems
Automation and tooling for a large-scale, always-on environment

Common question themes

Walk me through debugging a sudden latency spike across a distributed edge network.

Explain how BGP routing decisions could cause a traffic anomaly, and how you'd detect it.

Tell me about a time you automated a manual operational task — what was the before/after?

Describe a high-severity incident you were on-call for and how you resolved it.

How would you design a system to detect anomalous packet behavior at scale?

What's your experience with configuration management tools like Ansible or Puppet in production?

How candidates describe it

Real Systems Engineer interview stories — retold from candidates' public write-ups, with sources.

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Interviewed January 2023 · Not specified

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