Meta·Technical Program Manager·Onsite - System Design / Architecture
May 2026
Meta TPM system design round, one big open-ended question about building a live event streaming platform with polls and real-time user interaction. The scope was wide enough that I kept second-guessing whether to go deeper on the streaming infrastructure or the interaction layer.
- Design a live event streaming system that supports real-time user polls and interactive features during the stream.
“I started with the streaming pipeline and spent probably too long on ingest and CDN before getting to the interactive bits, which is really the interesting part of the question.” The rest of the author's notes on Technical Program Manager interview at Meta, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.
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