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Meta | Infra E4 | US
April 28, 2025 • 2 reads
Summary
My interview experience for an Infra E4 role at Meta included a phone screen with two algorithm questions and an onsite round featuring five technical problems, including both data structures & algorithms and a system design challenge.
Full Experience
Phone screen
- 3Sum Closest
- Continuous Subarrays, variant (maybe?) with length of subarray must be at least 3 and absolute value of the difference between any pair of numbers is in [0, 1].
Onsite
- Diameter of Binary Tree
- Binary Tree Vertical Order Traversal
- Pow(x, n)
- Group Shifted Strings
- Design Ad Click Aggregator
Interview Questions (7)
Q2
Continuous Subarrays Variant
Data Structures & Algorithms
Q4
Binary Tree Vertical Order Traversal
Data Structures & Algorithms
Q7
Design Ad Click Aggregator
System Design
Design Ad Click Aggregator