Meta's system-design rounds famously use its own products as the canvas: design News Feed, design a photo store like the one behind Instagram, design Messenger.
In 2026 the bar is a clean separation between candidate generation, ranking, and delivery, plus a real decision on fan-out on write versus fan-out on read for feeds and messaging. Interviewers push on scale numbers, consistency and ordering guarantees, and the hot-path latency budget. They reward candidates who state assumptions, do quick capacity math, and defend one design over the alternatives rather than listing every option.
About Meta
Meta's Bengaluru office works on ads infrastructure, WhatsApp, Instagram, and Reality Labs (VR/AR). Known for a bar-raiser process comparable to Amazon's, with a strong bias toward candidates who can solve at scale.
Recruiter screen and coding phone screen
Onsite coding rounds on DSA
System-design round on a Meta-style product
Behavioral round on impact and collaboration, then debrief
Round 1 (45 min)
coding phone screen on data structures and algorithms.
Round 2-3 (45 min each)
onsite coding rounds.
Round 4 (45 min)
system-design round on feed, storage, or messaging.
Round 5 (45 min)
behavioral round on impact and working with others.
Sourced from 2+ candidate post-mortems. Hit Practice to answer any one with AI voice feedback.