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      Mariana Minerals

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      Senior Software Engineer Interview

      15 Apr 2026
      Anonymous interview candidate
      Ann Arbor, MI
      Declined offer
      Positive experience
      Easy interview

      Application

      I applied online. I interviewed at Mariana Minerals (Ann Arbor, MI) in Jan 2026

      Interview

      Had an AI-forward technical interviews. Built a frontend on the first interview. Problem was large and not designed to not be completed in one sitting. I think they are judging based on what you decide to focus on. Second interview was creating the backend for the same frontend in the first interview, as well as system design discussion. I suspect a LOT of the questions asked were to determine senior-like behavior and team compatibility - i.e. are you going to go out of your way to make sure this works for the team or are you just going down a task list. I biased towards making sure the things I was building were sensible for the team and sought feedback. Since the interview was AI-enabled, I highly recommend explaining your thought process out loud. Do NOT just accept whatever output the AI makes. System design was about integrating multiple seemingly unrelated software systems with APIs into a unified service. My answer was to use webhooks and have a source-of-truth backend db such as postgres. 1. 30 min phone screen 2. 30 min technical screen 3. 1 hour technical interview (frontend) 4. 1.5 hour technical interview (backend + system design) + 30 min team member chat + 30 min cross collaboration 5. 30 min CEO chat

      Interview questions [3]

      Question 1

      If given more time, what would be the next things you implement [on the frontend]? [context: problem was large and lots of way to have potentially organized the data, lots of little features could be added]
      1 Answer

      Question 2

      Is what you built maintainable? If not what specific things about it would you change.
      1 Answer

      Question 3

      Change the CSS a certain way without the use of AI
      Answer question

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