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Completed Zoom SWE L5 loop last month, notes from each round

remote_swe_42 · 5 replies

Just finished the Zoom loop for a senior backend role, thought I'd write it up while it's fresh.

Recruiter screen (30 min): standard intro, compensation expectations, visa status, the usual. Recruiter was efficient and responded to emails same day throughout.

Technical phone screen (60 min): graph traversal problem, medium difficulty. I got a BFS variant on a 2D grid. Asked to code in a shared doc, not a full IDE. Tested edge cases at the end.

Virtual onsite (4 rounds, same day): Round 1: another coding round, medium DP. Nothing crazy. Round 2: system design. They asked me to design a notification delivery system at scale. I focused on fan-out, deduplication, and retry logic. The interviewer pushed on failure modes which I liked. Round 3: behavioral. Classic STAR stuff. "Tell me about a time you disagreed with a technical decision." "Describe navigating ambiguity." Pretty standard. Round 4: a sort of cross-functional/leadership round, even for IC. Questions about working with PM, handling conflicting priorities.

Total time from recruiter reach-out to verbal offer: 23 days. Feedback loop was fast.

One thing that surprised me: the interviewers actually read my resume and referenced specific things. Felt less like a filter and more like a real conversation.

5 replies

infra_ines

the system design round sounds like standard platform fare. did they give you any constraints upfront or was the scope entirely open-ended? I always find it tricky when they don't bound the problem.

remote_swe_42

they gave a light context: "millions of users, notifications across mobile push, email, and in-app." from there it was open. I spent the first 5 min clarifying delivery guarantees and latency expectations before touching the whiteboard. that framing helped a lot.

tired_recruiter

23 days is fast by current market standards. a lot of companies are running 6-8 week cycles right now. Zoom's recruiting team has generally been organized from what I've seen on the other side.

jp_newgrad

was the DP round medium on leetcode difficulty scale or more like "medium-hard"? trying to calibrate my prep.

remote_swe_42

genuine medium. not a trick problem. I'd say LC 200-400 difficulty range, not a hard disguised as medium. focus on DP fundamentals and you'll be fine.