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Code RoomGPS ingestion pipeline
HardPrep Room Coding #3259

GPS ingestion pipeline

System designDistributed systemsSenior–Staff~45 min

Design the GPS-ingestion pipeline for a fleet/consumer location platform that receives 5M location pings per second from 20M devices, each ping ~100 bytes (lat, lng, speed, heading, accuracy, timestamp). It must power both a live 'where is X right now' view (sub-second) and historical trip replay/analytics. Cover ingestion, hot vs cold storage, and how you handle out-of-order and duplicate pings.

What a strong answer looks like

Clarify scale and constraints first. Propose a clean component breakdown, then go deep on the hard parts (data model, bottlenecks, consistency, failure modes) and name the trade-offs you are making.

Clarify5:00 left
Estimate5:00 planned
Design15:00 planned
Deep dive12:00 planned
Failure8:00 planned
0:00
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.