Skip to contentSkip to footer
  • Community
  • Jobs
  • Companies
  • Salaries
  • For Employers
      Notifications

      Loading...

      Elevate your career

      Discover your earning potential, land dream jobs, and share work-life insights anonymously.

      employer cover photo
      employer logo
      employer logo

      Hex Trust

      Engaged Employer

      About
      Reviews
      Pay & benefits
      Jobs
      Interviews
      Interviews
      Related searches: Hex Trust reviews | Hex Trust jobs | Hex Trust salaries | Hex Trust benefits
      Hex Trust interviewsHex Trust Backend Engineer interviewsHex Trust interview


      Glassdoor

      • About / Press
      • Awards
      • Blog
      • Research
      • Contact Us
      • Guides

      Employers

      • Free Employer Account
      • Employer Center
      • Employers Blog

      Information

      • Help
      • Guidelines
      • Terms of Use
      • Privacy & Ad Choices
      • Do Not Sell Or Share My Information
      • Cookie Consent Tool
      • Security

      Work With Us

      • Advertisers
      • Careers
      Download the App

      • Browse by:
      • Companies
      • Jobs
      • Locations
      • Communities
      • Recent Posts

      Copyright © 2008-2026. Glassdoor LLC. "Glassdoor," "Worklife Pro," "Bowls," and logo are proprietary trademarks of Glassdoor LLC.

      Company Bowl sample

      Want the inside scoop on your own company?

      Check out your Company Bowl for anonymous work chats.

      Bowls

      Get actionable career advice tailored to you by joining more bowls.

      Followed companies

      Stay ahead in opportunities and insider tips by following your dream companies.

      Job searches

      Get personalized job recommendations and updates by starting your searches.

      Backend Engineer Interview

      May 19, 2025
      Anonymous Interview Candidate
      No offer
      Positive experience
      Easy interview

      Application

      I applied online. The process took 4 weeks. I interviewed at Hex Trust in Apr 2025

      Interview

      There are 4 rounds in total - HR Interview - 3 technical interviews The interviewers are super nice. So be brave and try to answer all the questions. They are very helpful and willing to discuss with you. The 1st technical interview focuses on coding problem. The problem is about printing a tree and do rotation of the tree. I cannot answer rotation of the tree but able to get into 2nd technical round. The 2nd round focuses on understanding on blockchain concepts and system design. The interviewer asked me using simple language to describe blockchains ( is blockchain alike git ?). Then, the interviewer asked me how to implement retry logic without using retry. The interviewer's answer is action-log table design. Mine answer is Actor model. I think these two are quite the same conceptually. The 3rd round is somehow easier part, depending on your exposure in low latency programming or HFT. I was asked - Do you know epoll (Posix) ? - What is your understanding on Rust? - Do you know what is market microstructure ? I think the 3rd round is quite easy for me to handle since I am interested in low-latency programming and HFT. Each round takes roughly one week to proceed. It takes me additional one week to wait for the response from HR after the 3rd technical round for the offer. Eventually, I DO NOT receive an offer and the reason is that I am not that experienced. They are looking for a more experienced person to join the team.

      Interview questions [1]

      Question 1

      1. Print the tree in any language 2. Rotate that tree 3. Use layman words to explain Blockchains 4. Explain what is TCP/IP ? 5. If HTTP and WebSockets are TCP based, why WebSocket is faster than HTTP requests ? 6. How to implement retry logic without using retry function? ( system design related) 7. Do you know market microstructure? 8. Do you know epoll ( Posix stuff ) ? 9. What is your understanding of Rust?
      Answer question