
Wanderlog Fullstack Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 16 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Wanderlog.
Full Stack Software Engineer
So, I had a really bad experience with them. They sent over a coding assessment, which they claimed wasn't like LeetCode and was supposed to be more like a real-world scenario. Yeah, right. It was basically LeetCode problems, and you had to do two of them in 40 minutes. The problems themselves weren't that hard, but the platform was clunky, and the instructions were confusing. Plus, you had to download files, which just ate up more time from the already tight deadline. I did the assessment over the weekend, and a few hours later, I got the typical automated email saying they were moving on with other candidates. It really felt like a generic rejection, and there's no way they reviewed my submission that quickly on a weekend, especially since all my tests passed and my solution was fine. My advice? Don't bother with this company; it's not worth your time or effort.
- One question involved frequency counting and sorting, typical of LeetCode-style interviews.
Full Stack Engineer
This company's interview process is a time sink. They start with a coding challenge that they claim takes 15-45 mins and is meant to "simulate real programming." However, the platform is difficult to use and you'll spend an hour just figuring it out for a timed challenge. They seem to value speed above all, so unless you're a coding whiz or using tools like ChatGPT, you'll likely struggle. You have to complete two Leetcode-style problems (easy) in a 40-minute timer that doesn't show up while running. The provided test cases need to pass, but they won't give you specific errors unless you remove all debug code. When they reject candidates, they offer discouraging feedback about practicing coding, implying that's the only skill you possess.
- Count the occurrences of string keys in a given list, then sort the results first by count in descending order and then alphabetically. Present the output as a list of strings, each showing the key and its count.
Full Stack Engineer
First up was a HackerRank test with two easy coding problems where I could use Google. Then I had a 1-hour video call with a co-founder to discuss my past work and do a medium coding problem, with code skeletons and some test cases provided. The third round was another 1-hour video call with a co-founder, this time a medium coding problem without any boilerplate, test cases, or testing framework. I had to figure out the API myself, making sure it was practical and easy to test. Across all rounds, they really cared about how correct and fast my solutions were.
- Questions about processing logs and transactions.
- Questions about sorting and iterative development.
- Questions about binary search.
Wanderlog Fullstack Engineer Interview Questions
Quoted word for word from Wanderlog interview reports.
“Given n lines of logs that look like `worker_id, timestamp, action` (worker_id is who did it, timestamp is when, action is 'sign-in' or 'sign-out') and a maxSpan value m, list all worker_ids who worked m time or more.”
Read reports →“Given an array of log strings, where each log is a space-delimited string containing an identifier and content, how would you approach organizing and sorting these logs?”
Read reports →“Could you implement a standard min() function without using built-in language parameters?”
Read reports →“Solve the A Plus B problem.”
Read reports →“What coding languages do you prefer to use?”
Read report →“How would you improve the faulty aluminium outreach programming?”
Read report →“What technical knowledge do you have regarding data manipulation?”
Read report →Formats, difficulty and experience
Across all 16 Wanderlog interview reports.