Arista Networks Software Engineer interview experience

No offer

Negative

Posted Dec 2025 · Candidate report, summarized by Dataford

I had a SONiC-focused process that moved quickly through three stages, and it leaned much more toward systems-flavored coding than typical web-style interviews.

It started with a virtual DSA round that included things like subarray sum for a target, merging two sorted lists, and then a goroutine “ping-pong” style concurrency problem.

After that, I went onsite for a higher-level design discussion with a project architecture question and a parking system scenario. The final stage was more technical-managerial in tone and combined practical concurrency and systems knowledge—questions included a token bucket implemented with goroutines only, and a trail of how a Kubernetes service IP flows through kube-proxy to iptables.

Overall it felt thorough and

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