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      Thought Machine

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      Backend Engineer Interview

      28 Oct 2024
      Anonymous interview candidate
      No offer
      Negative experience

      Other Backend Engineer interview reviews for Thought Machine

      Backend Engineer Interview

      5 May 2026
      Anonymous interview candidate
      London, England
      No offer
      Average interview

      Application

      I interviewed at Thought Machine

      Interview

      Recruiter call followed by take-home (search 'mass transit billing' on GitHub), then final onsite (x1 take-home code review, x2 LeetCode-style interviews – one of them was LC 139: Word Break) Recruiter with initials CS broke his promise of providing the interview outcome (offer or rejection) the week after, and ghosted when I emailed him, only to get back days later with a rejection. I asked for feedback and I got ghosted again.

      Interview questions [2]

      Question 1

      Take-home assignment – mass transit billing (search 'mass transit billing' on GitHub)
      Answer question

      Question 2

      LeetCode 139: Word Break (medium)
      Answer question
      2
      avatar
      Thought Machine response
      1y
      Thank you for sharing your feedback. I’m genuinely disappointed to hear about your experience, and I want you to know that candidate experience is something I deeply care about. It's critical for us that every candidate feels respected and informed throughout their journey with us, and it sounds like we fell short here. If you’d be open to it, I would really appreciate the chance to connect directly to better understand what happened and to ensure we learn from this. Please feel free to reach out to me directly at aduffy@thoughtmachine.net, and we can set up a time to chat. Thank you again for your feedback, and I hope to speak with you soon. Best, Alex- Director of Recruitment
      Positive experience
      Difficult interview

      Application

      I interviewed at Thought Machine (London, England)

      Interview

      Introductory call with an internal recruiter, followed by a take-home coding exercise, then three back-to-back technical interviews on site (each one hour): - code review - algorithms - system design

      Backend Engineer Interview

      5 Dec 2025
      Anonymous interview candidate
      No offer
      Positive experience
      Average interview

      Application

      I interviewed at Thought Machine in Nov 2025

      Interview

      1. Recruiter call 2. Take home assignment 3. Onsite in office: - Take home assignment review - DS & A - System Design Interviewers were kind and recruiters take the time to provide feedback. Overall a really pleasant experience.

      Interview questions [1]

      Question 1

      Design a popular app (can't reveal specifics) used in London
      Answer question

      Backend Engineer Interview

      23 Apr 2025
      Anonymous interview candidate
      No offer
      Positive experience
      Average interview

      Application

      I interviewed at Thought Machine

      Interview

      I sent in my Resume and CV and within the week I had an initial screening phone call. Then upon completing a technical assessment I was invited to their office for a Code Review, Algorithms and Sys design interview. All the interviews at every stage were super friendly and though I didn't get the offer in the end I think Thought Machine sounds like a great place to work.

      Interview questions [1]

      Question 1

      HR Screening call followed by technical assessment.
      Answer question
      2