Wayfair

Role: Senior Software Engineer

College: Not Specified

Interview Date: February 2024

Interview Type: Full-Time

Result: Rejected

Difficulty: Hard

Rounds: 3 rounds + Techno-manager round

Topics Asked: Algorithms, Data Structures, SQL, System Design, Behavioral

Experience:

This candidate interviewed for a Senior Software Engineer role in February 2024.

Round 1 (Online Coding Round):

• Included 2 Algo/DS questions and 1 SQL query question.
• SQL question was described as "way too tough," requiring computations, joins, and nested queries across three tables.
• The two coding questions were of medium level.

Round 2 (1:1 Algo/DS Round):

• Included 1 easy and 1 medium-level question.
• Coding Question: Find the longest palindromic substring in a given string.
• Candidates were also expected to write test cases to prove their code.

Round 3 (System Design Round):

• Asked to design a Parking Lot with API endpoints, Class design, and DB design.

Techno-manager Round:

• A final fitment round after Round 3.

The candidate was rejected.