I applied through an employee referral. The process took 2 months. I interviewed at Meta (London, England) in Jul 2018
Interview
I got an email for the recruiter, then after 2 weeks I had a phone interview, and then after a month I went to London on 5 interviews. First was behavioral, next 2 were coding questions and the last 2 were system design.
Interview questions [1]
Question 1
Phone:
1. 2-SUM in sorted array
2. Check if binary tree is BST
Onsite coding:
1. Remove invalid parentheses
2. Leetcode: Walls and Gates
3. Leetcode: Flatten Nested List Iterator
System design:
1. Design Instagram
2. Design a Facebook plugin to show most-listened songs on user profile
The process is straightforward and designed to help us get to know each other. It moves through a few stages at a comfortable pace, involves conversations with several team members, and focuses on making sure it's a good mutual fit.
I applied through a recruiter. I interviewed at Meta
Interview
Had an initial recuriter call and then scheduled a coding round with 2 leetcode questions. Practicing Meta-tagged leetcode questions would help prepare for this round. Interviewers expect clear communication and code.
Generic LeetCode-style questions, many tagged as Meta, so extensive preparation is required to perform well in the technical interview. The experience varies significantly - some interviewers provide hints and guidance, while others expect candidates to solve problems independently with minimal assistance.