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      Fidelity Investments

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      Senior Software Engineer Interview

      28 Oct 2010
      Anonymous interview candidate
      Merrimack, NH
      No offer
      Neutral experience
      Average interview

      Application

      I applied through an employee referral. The process took 2 weeks. I interviewed at Fidelity Investments (Merrimack, NH) in Aug 2010

      Interview

      I was referred by a company's employee. This is a contractor position. A week later, I was put in 1/2 hour technical interview via the phone. The questions included Java multithreading, singleton design pattern, server-side JSP, HTTP protocols, XML, etc. I then was called in for the face-to-face interview. I was told it was supposed to be group/panel setting, but when I arrived, there was only one person sitting in the conf. room and the other person was on the phone (I guess he was working from home that day!!!). The first face-to-face interview lasted for one hour. They throw more questions on me first (adding cookies, more Java threading, serialization, etc). The guy who was on the phone had very heavy accent, therefore, I constantly struggled with understanding his questions. Next hour, I was interviewed by two engineers from Boston via the phone again. They did not ask any question but asked me if I had any question. I asked them about what project they were working on. How did the product being tested and supported? Most questions I asked were process related. I cannot believe I was the one who tried o fill that one hour. interview. Finally, I was interviewed with the Director. The first question was "Do you have any Java experience?" I thought "my god, didn't you read my resume? Java was the major programming language I have been developing in the past 12 years" but I answered (with a smile), yes. Before I left the company, I was told "You will be contacted no matter what". I have never heard from the company despite I wrote a thankyou email and asked being notified as soon as the final decision is made. I tried to call again. I got the answer was the decision has not been made. It hen heard from my friend that they have hired someone else who is "younger". My conclusion is: they did not want me first place. Because my friend submitted my resume, therefore, they have to do something about it. There was no reason they can reject me, therefore they did not even bother to let me know the decision.

      Interview questions [2]

      Question 1

      What is Singleton design pattern? Give me a recent example you have implemented.
      Answer question

      Question 2

      What is HTTP protocol? What is the difference between POST and GET method?
      Answer question
      1

      Other Senior Software Engineer interview reviews for Fidelity Investments

      Senior Software Engineer Interview

      17 Apr 2026
      Anonymous employee
      Dallas, TX
      Accepted offer
      Positive experience
      Average interview

      Application

      I interviewed at Fidelity Investments (Dallas, TX)

      Interview

      Recruiter Screen: Initial 15–30 minute call to discuss background, experience, and role fit. 3 Technical Round: Focused on coding, data structures, and core concepts (Java/backend/full stack depending on role). live coding or problem-solving questions, sometimes allowing pseudocode and system design. Behavioral Round: Questions based on past experience using the STAR method (teamwork, conflict, challenges, projects). Final / Onsite (or virtual panel): Combination of technical + behavioral interviews with multiple engineers or hiring managers. In some cases, included system design or deep dive into past projects.

      Senior Software Engineer Interview

      30 May 2026
      Anonymous interview candidate
      Galway
      No offer
      Negative experience
      Difficult interview

      Application

      I applied through a staffing agency. I interviewed at Fidelity Investments (Galway) in Mar 2026

      Interview

      The worst part of the interview was the silence and the lack of any feedback afterward. The standard automated response was, “We’ve decided to move forward with other candidates.” Even though I completed two tasks in 45 minutes, and during the second interview, the manager himself said that all my answers were good.

      Interview questions [1]

      Question 1

      Tasks involving two pointers and the “Tic Tac” game
      Answer question

      Senior Software Engineer Interview

      19 Nov 2025
      Anonymous interview candidate
      Westlake, TX
      No offer
      Positive experience
      Average interview

      Application

      I applied online. I interviewed at Fidelity Investments (Westlake, TX) in Oct 2025

      Interview

      It was a one hour panel interview with two interviewers. The interview was mostly technical with a heavy focus on system design and one question talking through solving a coding question.

      Interview questions [1]

      Question 1

      How would you design and architect a video streaming platform.
      Answer question

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