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      NerdWallet

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      Backend Engineer Interview

      19 Mar 2020
      Anonymous interview candidate
      San Francisco, CA
      No offer
      Positive experience
      Difficult interview

      Application

      I applied online. The process took 2 weeks. I interviewed at NerdWallet (San Francisco, CA) in Jan 2020

      Interview

      Had an initial phone screen with recruiter. This was followed by an online coding exercise with an engineer. Finally, I was brought in for an all day, on-site interview.

      Interview questions [4]

      Question 1

      Write a JSON serializer.
      1 Answer

      Question 2

      Do a high level design for a system that periodically reads in data, normalizes it, and updates records.
      1 Answer

      Question 3

      Design and implement a service that schedules tasks to be performed at a particular time.
      Answer question

      Question 4

      Implement a LRU cache.
      Answer question
      1

      Other Backend Engineer interview reviews for NerdWallet

      Backend Engineer Interview

      2 Mar 2018
      Anonymous interview candidate
      No offer
      Negative experience
      Average interview

      Application

      I interviewed at NerdWallet

      Interview

      Positions are "scaled". You apply / get recruited for "backend engineer" and based on your assessed technical level (by them), they'll scale it from SWE to Staff SWE. Recruiter and recruiting coordinators are personable and engaging. I had a nice technical phone interview. The problem was fun, but does require some exposure beforehand, so definitely not for language (Python) or web/API (JSON) newbies. Honestly, the engineer sold me on the company - something the recruiter could not. The onsite completely failed to impress me: * The platform team is relatively new and relatively wild west - no cohesive style or shared values. * Words like "empathy" get dropped without any real understanding of what that is. * 2/3 of the coding / white boarding exercises are completely divorced from what the position would actually work on - wasting time and doing a disservice to interviewees looking for a "day in the life" perspective. * Felt like someone in a "recruiting funnel" to hit metrics and not an actual person. Keeping working at it NW and good luck!

      Interview questions [1]

      Question 1

      Web cache, Task Queue, JSON, Versioned ETL
      Answer question
      2

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