Principal Software Engineer Interview Experience - United States
Process
Was contacted by a Wayfair recruiter on LinkedIn and was set up for a Karat interview.
The video/audio didn't work, so I had to switch to using my phone with the coding portal open.
No response after the Karat interview.
Questions
Q1. Given two tables, user and friends, find a list of all friends.
Q2. What would be eventual consistency in the case of a banking application, another application that requires data to be updated in 10 milliseconds?
Q3. Given an array of arrays, where each sub-array consists of child_id and parent_id (e.g., [[3, 5], [3, 6], [1, 5], [1, 6]]), write a function to find if two IDs have a common parent or not.
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Interview Statistics
The following metrics were computed from 2 interview experiences for the Wayfair Principal Software Engineer role in United States.
Success Rate
Wayfair's interview process for their Principal Software Engineer roles in the United States is fairly selective, failing a large portion of engineers who go through it.
Experience Rating
Candidates reported having mixed feelings for Wayfair's Principal Software Engineer interview process in United States.
Wayfair Work Experiences
- 4.0InternSoftware Engineer(Internship) • Current EmployeeBengaluruNovember 29, 2025Pros: Good culture in the companyCons: Tough interview questions for the interview
- 4.0One of the best if you don't care about the money as muchSoftware Engineer • Current EmployeeBoston, MANovember 26, 2025Pros: 1. Really great work-life balance 2. Has smart and welcoming people 3. Has a lot of events for employees, which is super funCons: 1. Less pay 2. Layoff culture, which is everywhere these days
- 3.0Good company with bad managementSnior Software Engineer • Former EmployeeGermanyNovember 24, 2025Pros: Intelligent team members and enjoyed working with peersCons: Upper management lack of clarity and long term vision
Wayfair Interview Questions
