Meta US swe e4(full loop)
Summary
I completed the full interview loop for a Meta US SWE E4 role, passing coding, system design, and AI coding stages, but was ultimately rejected.
Full Experience
Rejected: feel super upset and tried the best
3 yoe in european bigtech
tried to ask what they didnt like, recruiter said we're not gonna share results this time and wait for a year.
preloop coding passed strong, done 2 questions: LRU cache and bfs binary tree.
full loop:
- coding passed strong
bfs grid to reach bottom right with the path.
and nested list sum, every depth level multiplies by nums in list from 50 meta recently asked - system design
ticketmaster buy button just for 20k tickets for taylor swift concert.
done solid with all possible scalability and strong consistency. interviewer said he enjoyed - ai coding
done 3 of 5 tests, again grid to reach the end with < > and walls. would be better to do 4 at least and could do if not stucked.
stuck on first error to fix for 30 minutes(omg), found right place where to fix fast but couldnt fix exactly correct and finished with ai, both next done fast and solid. - behaviour as usual, no idea about results
Did anyone get an offer for the last time?
they announced layoffs again
Interview Questions (6)
LRU Cache
Implement an LRU (Least Recently Used) cache with get and put operations that evicts the least recently used item when capacity is exceeded.
Binary Tree BFS Traversal
Traverse a binary tree level by level using breadth‑first search and return the nodes in order of visitation.
Find Path in Grid to Bottom‑Right
Given a 2D grid containing obstacles, find a path from the top‑left corner to the bottom‑right corner using breadth‑first search.
Nested List Weighted Sum
Given a nested list of integers, compute the sum of all integers where each integer is multiplied by its depth level within the nesting.
Ticketmaster Concert Ticket Purchase System Design
Design a system that can handle the purchase of up to 20,000 tickets for a high‑profile concert (e.g., Taylor Swift), ensuring scalability, strong consistency, and low latency during peak traffic.
Grid Navigation with Directional Tiles
Navigate a grid where each cell contains symbols such as '<' or '>' indicating allowed movement directions, with walls acting as obstacles. Determine a path that reaches the target cell.