Onsite interview process was fair. Difficulty level was average. First person to interview me had horrible communication skills. He couldn't explain coding problem clearly.
Remaining three people were very good in communication. After on-site interview, facebook requested for yet another coding phone interview.
Post onsite phone interview is what went wrong with me. This person had poor interview skills. He asked me an advanced algorithm question about graph/tree traversal (search for "same fringe problem concurrency" and you will know what I am talking about). I gave a natural solution which was not space efficient, but interviewer was looking for a specific solution he had in mind.
I lost the deal to this question. I would give thumbs up to recruiters handling interview process. I think they are one of the best in the industry.
Recruiter call was pretty standard, first round was 2 Meta tagged LC mediums in 45 minutes. On-site was 2 coding sessions of 2 LC mediums, a system design interview and a behavioral interview with an engineering manager.
Interview questions [1]
Question 1
How do you answer if someone asks how long a deliverable or project will take?
The entire process usually takes 3–8 weeks, depending on scheduling and the specific role. Coding interviews heavily emphasize common DSA topics such as arrays, strings, trees, graphs, BFS/DFS, heaps, hash maps, and dynamic programming. System design becomes increasingly important for E4+ positions.
Interview questions [1]
Question 1
Given an array of integers and a target value, return the indices of two numbers that add up to the target
Unexpectedly, the first question in the technical round felt familiar. It was about finding a subset of strings with unique character concatenation — same problem I had worked through on PracHub a few days earlier. The interview included a recruiter screen followed by a rigorous pair of technical interviews where I tackled data structures and algorithms alongside system design concepts. After successfully answering a few more challenging DSA questions, I received an offer. The entire experience was intense but ultimately rewarding, and I happily accepted the position.
Interview questions [1]
Question 1
Given an array of strings, pick a subset whose concatenation contains no duplicate characters, and return the maximum possible length of that concatenation.
