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Reddit Interview Experiences
3935 interview stories from candidates at 857 companies: how each round went, what was asked and how it ended. Every company page links to practice questions in the same style.
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5 results
- A Word-Search Rule Clarified Too LateReddit · Software Engineer · Technical Screen · Sep 2026Rejected
The author reports an unsuccessful Reddit coding screen involving word search. After presenting the task, the interviewer remained quiet while the applicant worked. The author did not confirm the movement rules and implemented a more permissive search than the interviewer expected. A typo also consumed about ten minutes. Although the applicant’s own tests passed, the interviewer said near the end…
- Onsite with a Cat/Dog Comment-Tree Filter and a Comment-Likelihood ML DesignReddit · Machine Learning Engineer · Onsite · Sep 2026
Coding: seems like a new question? I had AI rewrite it: You are given a dictionary of Reddit comments. Each comment contains: id parent_comment body cat: whether the comment is about cats dog: whether the comment is about dogs Example input: Comments form a tree using parent_comment. There are two user modes: CAT_PERSON: does not want to see dog-related comments DOG_PERSON: does not want to see c…
- General Pooling and a Ranking InterviewReddit · Machine Learning Engineer · Onsite · Aug 2026Rejected
I applied to a particular team while sending out lots of applications online. The first phone screen was a question from the forum: analyze a spent-hours dataset and predict clicks. Since I had prepared it, the interview went quite smoothly. A week after the interview, I still hadn't heard anything, so I logged into the candidate portal. The position I had applied for was gone, and the interview…
- Reddit Machine Learning Engineer interview experience: two DSA roundsReddit · Machine Learning Engineer · Technical Screen · Jul 2026
The interview was straightforward: two data-structures-and-algorithms rounds along with machine-learning knowledge. The interviewers were kind and easygoing, and one of them in particular made the conversation feel comfortable. The format matched what I expected for the role. There were no strange surprises, just a clean sequence with a relaxed tone. I did not receive an offer, but the interview…
- Load Balancer Deep-Dive and a One-Week OfferReddit · Backend Engineer · Technical Screen · May 2026Offer
General coding 1: the Report Chain problem General coding 2: the Tennis Game problem — afterward the interviewer also chatted with me a bit about the strategy pattern Backend programming: the Load Balancer problem: It's split into four parts, and they give you a codebase. Part 1: The load balancer keeps getting error code 500. You need to find the cause — the cause is that the LB has the hostname…
