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      Senior Software Developer Interview

      Oct 2, 2015
      Anonymous employee
      London, England

      Other Senior Software Developer Interview Reviews for Bloomberg

      Senior Software Engineer Interview

      Jun 17, 2026
      Anonymous Interview Candidate
      No offer
      Positive experience
      Difficult interview
      Accepted offer
      Positive experience
      Easy interview

      Application

      I applied through a staffing agency. The process took 3 months. I interviewed at Bloomberg (London, England) in Jun 2015

      Interview

      I applied for a C++ Software Developer position in May and successfully passed an interview process by the end of June. The process itself was pretty much generic: a technical phone interview, then 3 technical on sites, then, if you passed the previous steps, an HR interview. Really, you can read about it in every single review here, and the HR interview is pretty standard in all companies, so instead I'd like to focus on the technical questions they asked me. Please refer to the Interview Questions section to see the first 5. As glassdoor does not allow to add more there, I'll describe the subsequent questions below. First on site 3. Implement a thread-safe cache for objects which are expensive to copy, provide lookup, insert and delete operations. Here you basically have to combine std::unordered_map, std::mutex and std::shared_ptr into a single class. std::shared_ptr is used to make sure threads do not keep pointers to deleted objects. unordered_map and mutex should be obvious. I have also told it's possible to use read-write locks or atomic variables to synchronize access, depending on our usage patterns. Second on site 1. Two standard brain teasers: boxes with wrong labels and searching for a coin which is heavier than others. Easy. Second on site 2. How to find whether a singly linked list has a loop or not. A standard slow/fast runner problem, described in every book. Third on site. There were no questions at all, it was more like a conversation about the ways of profiling an application on UNIX systems to understand its memory allocation patterns, space-time trade-offs, overriding malloc/free, etc. I think they just did not want me to sit alone for 30 minutes waiting for an HR to come from a meeting, your mileage may vary. The day after I had a video conference with New York, which happened to be another friendly chat without any questions whatsoever, and I got an offer. Frankly speaking, I spent way more time waiting for a visa and background check results than preparing for and passing the interview itself. I suggest you using "Elements of Programming Interviews: The Insiders' Guide" as your preparation book and believe it covers all topics you need to answer their general coding question. Good luck :P

      Interview questions [5]

      Question 1

      Phone interview 1. Remove duplicates from an unsorted singly linked list.
      1 Answer

      Question 2

      Phone interview 2. Tell whether there is anything wrong with the code you see.
      1 Answer

      Question 3

      Phone interview 3. Tell what's the output of the program you see.
      1 Answer

      Question 4

      First on site 1. A question about C++ templates.
      1 Answer

      Question 5

      First on site 2. A question about bitwise operations.
      1 Answer
      8

      Application

      I interviewed at Bloomberg

      Interview

      First round was with HR, who were helpful and transparent around details including process, salary range and job expectations. Had a second-round technical screen for one hour. Started with questions around experience followed by a coding problem. I found it challenging but the interviewers were polite, helpful and fair. Unfortunately did not make it through to the virtual onsite, but the process was fair and appropriate to the role.

      Interview questions [1]

      Question 1

      A variant of Evaluate Division
      Answer question

      Senior Software Engineer Interview

      Jun 9, 2026
      Anonymous Interview Candidate
      No offer
      Positive experience
      Average interview

      Application

      I applied through a recruiter. I interviewed at Bloomberg

      Interview

      Phone screen - LeetCode style (Medium problem) Onsite (SF) - 2 hours coding round - build inverted in-memory index search - Design round (Throw some random problem) - Behaviour round with senior leadership

      Interview questions [1]

      Question 1

      - Leet code medium - In memory search system by reading their data set
      Answer question

      Senior Software Engineer Interview

      May 6, 2026
      Anonymous Interview Candidate
      No offer
      Negative experience
      Difficult interview

      Application

      I interviewed at Bloomberg

      Interview

      Terrible communication. Got passed between 3 different recruiters all of whom gave specific dates for updates and blew past them. Descriptions of what would be covered in the interviews are wholly inaccurate (don’t bother reading the PDF they sent to “prep” you, almost none of it came up in any of the 3 interviews I did with them.) Interviewers themselves were decent but clearly had exact “right” answers they were looking for. What’s the point of a leetcode question where there’s only one way to implement it? What’s the point of a system design interview where you’re having a candidate parse through a complex system that they clearly already know everything about and are just looking for 1-2 EXACT modifications to check off their boxes? Was there even a right answer? I genuinely don’t know what this company was looking for. Waste of time, waste of effort, waste of resources. Avoid, avoid, avoid