Bloomberg L.P. Financial Software Developer Interview Questions

Updated Sep 6, 2014
Updated Sep 6, 2014
72 Interview Reviews

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Financial Software Developer Interview

Anonymous Interview Candidate  in  New York, NY
Anonymous Interview Candidate in New York, NY
Application Details

I applied through college or university - interviewed at Bloomberg L.P. in October 2013.

Interview Details

5 round of interviews. All face to face.
They provide a bunch of courses about C++ and Equity. The instructors are great and have a whole lot of experience.
Allow long enough time for you to make your own decision if you get an offer. Don't push people at all.

Interview Questions
Accepted Offer
Positive Experience
Difficult Interview

Other Interview Reviews for Bloomberg L.P.

  1. 21 people found this helpful  

    Financial Software Developer Interview

    Anonymous Interview Candidate  in  New York, NY
    Anonymous Interview Candidate in New York, NY
    Application Details

    I applied online. The process took 2 months - interviewed at Bloomberg L.P. in June 2014.

    Interview Details

    From the online application (bloomberg website) to the phone interview took around 4 weeks (a first interview was scheduled within 2 weeks but the interviewer didn't call so we rescheduled). The phone interview was quite straightforward and I was asked the following questions
    1- Kind of a strange question. Generate all 3-digit combinations of 1-9 but not repeats in the sense that if you have 123, then 231, 321, etc. are not allowed. [nested for loops]
    2- Reverse a given sentence (no use of library methods, arbitrary spaces between words). Make it faster. [start at the end and find and print words one-by-one].
    3- You are given a 3L and a 5L container and unlimited supply of water. How to make 1L?[I found a longer solution but the short on is pour 3L into 5 twice.]
    4- A program/algorithm which given mL and nL buckets figures out how (if possible) make kL. [we discussed the solution and the interviewer was nice and gave me a hint. Its a DP problem].

    The next day, I received and invitation for on-site interview. The travel schedule part was straightforward and convenient.
    I was invited to the NY office. There was a group of around 30 people like me. They hold you for a few minuts to issue a security badge. Then there is a tour about all the 31 or so aquariums and fishes at bloomberg. Eventually, there is breakfast and then the interviews come find you. There is 4 rounds of interview. Rounds 1-2 are technical, 3 is management, and 4 is HR.
    Some questions I remember:
    1- Find shortest path on a chessboard from low left corner to top right. You can move right and top only and some cells are inaccessible (DFS).
    2- You have sorted arrays A and B with sizes m and n. Assume at the end of array "A" you have "n" empty slots. How to merge with minimum number of operations (start at the end instead of beginning). Prove it works (induction).
    3- Some runners running in a field with some "k" sensors. We get events of runnings locations. How to print the top "m" runners? (array of lists or hash table of lists depending on the location of the sensors. each list is one sensor). Some questions on how to identify the ordering within each list.
    4- CPU Cache implementation. How to implement the least frequently used procedure.
    5- Scheduling some jobs over "m" servers. Centralized vs distributed implementation? How to implement.

    The management interview was interesting and I liked the two managers. HR was fine too. I did not do any negotiations.

    Interview Questions
    • The chessboard problem. I first mentioned BFS and use of a Queue but the interviewer kept asking about some data structure with less memory that I could extract due to the simple structure of the graph. I did not understand what he meant. I eventually mentioned DFS and proved it works uses less memory.
      The cache problem took a long time. I kind of though I failed it at some point. I had no prior knowledge of the topic since I am not a CS guy. I eventually, used an array to store the access time to different items and O(n) search through it to find the least frequently used one. The interviewer did not raise the complexity. He wanted me to write code on a paper (which is hard, esp. in C).
        View Answer
    Negotiation Details
    I did not do any negotiations. I accepted the offer for some time in the future since I need to resolve the visa part.
    Accepted Offer
    Positive Experience
    Difficult Interview
  2.  

    Financial Software Developer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Interview Details

    One phone interview and one on site (3 interviewers) plus HR review. Three interviewers are two developer and one manager. Then you get the offer and they do all background checks etc.

    Interview Questions
    Negotiation Details
    Not much negotiation room for junior hire
    Accepted Offer
    Negative Experience
  3. 2 people found this helpful  

    Financial Software Developer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through college or university. The process took 2 days - interviewed at Bloomberg L.P. in September 2013.

    Interview Details

    I was interviewed on campus ( University of Maryland ,college park ) . I got a call through career fair . The first interview happened at the fair itself, I was asked a simple mathematical questions , and a simple programming questions .
    Then there were 2 back to back tech interview . Some of the questions that were asked :
              Given a list of exchange rates , between several currencies . Find out if it is possible to profit while moving through currency , exchanging , and ending up at the same currency you started with .
              There was a question about implementing vectors ( from STL ) .
             To implement a queue by using stacks .

    Third interview was a not really technical although person asked me about python , asked me to write some basic code in python .

    Interview Questions
    • The question about inner workings of templates in C++, syntax etc , was unexpected . I had coded and prepared from a more algorithm and data structure point of view . I knew some these c++ internals , but that was not the skill i was showcasing . I have given other interviews , and such software companies ,rarely ask these language specific questions . As a result whatever interviews i gave post this one , i claimed to know only C, lol.   Answer Question
    Negotiation Details
    I did not do much negotiation . I had only one offer back then .
    Accepted Offer
    Positive Experience
    Average Interview
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  5. 11 people found this helpful  

    Financial Software Developer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied online. The process took 2 months - interviewed at Bloomberg L.P. in December 2013.

    Interview Details

    Applied Online...

    Phone Interview.. Not difficult.
    Question 1: Why make data members private and access them using getter and setter methods when you can access them directly by making them public.
    Question 2 : Given stock prices of n days. Find when to buy and when to sell stock in order to gain maximum profit
    Question 3 : Given an array of size greater than 'x' and a range 0 to x . Find duplicate elements in the array. Hint. You can destroy the array but the solution should use O(1) space and O(n) time where n is the size of the array.

    On Site Interview:

    Interview 1 :
    Interview with 2 software developers
    Started with some questions related to my projects
    Q1 : Diamond Inheritance Problem in C++. Use of virtual keyword. And how are things handled internally. Basically checked my understanding of vtable

    Q2 : Can you use virtual keyword with destructors?

    Q3 : Given heads of two linked lists. Find if the two linked lists intersect.
    Solution should not use extra memory.

    Q4 : Reverse linked list. Tested concepts of double pointers, pass by value and pass by reference.

    Interview 2 :
    Interview with 2 software developers
    Q1 : In what case would you use BST over a hash table..
    Q2 : Insertion in BST
    Q3 : Find 'k'th smallest element in BST. What extra information would you require here
    Q4: Given a string which has a lot of spaces beween words . Remove these extra spaces in the string
     eg: " I love New York " --> "I love New York"
    Q4 : You get an input in the form [2 lowercase characters , A number] .. eg [aa,10] , [bd, 12]..
    Given a two letter input, find the last 10 numbers associated with the string..
    Design a data structure to implement this without using STL. Basically I was asked to design a hash function.

    Interview 3 :
    Interview was with a project manager

    Q1 : Find the first distinct element in an array
    Q2 : C++ does not have byte datatype. How would you create this datatype.
    Q3 : Lets say I have a code currently executing on my machine. I overwrite the code with a newer version. But the older version is still executing. Why do you think this is happening.

    Interview 4 :
    Interview with HR
    General HR Interview

    Interview Questions
    • Given heads of two linked lists. Find if the two linked lists intersect.
      Solution should not use extra memory.
        View Answers (7)
    Accepted Offer
    Positive Experience
    Difficult Interview
  6.  

    Financial Software Developer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through college or university. The process took 2+ weeks - interviewed at Bloomberg L.P..

    Interview Details

    C++ questions, like sizeof implementation, swap code. Simple questions but they expect thorough answers.
    Maximize profit given a sequence of daily prices by buying and selling only once each.
    Describe your most complicated work.
    One interviewer tried to test my bias for action and if I have an urgency to do something quick and finish the goals

    Interview Questions
    Negotiation Details
    non-negotiable
    Accepted Offer
  7.  

    Financial Software Developer Interview

    Anonymous Interview Candidate  in  Raleigh, NC
    Anonymous Interview Candidate in Raleigh, NC
    Application Details

    I applied through college or university - interviewed at Bloomberg L.P. in November 2013.

    Interview Details

    Scheduled oncampus interview and two ppl interviewed for one hour.

    No introduction of themselves,no introduction of the position for which I was being interviewed and looked uninterested.

    Asked two coding questions and were continously emphasizing on lowering down the complexity.

    Interview Questions
    • Remove consecutive duplicates in a string inplace and less than O(n)   Answer Question
    Reasons for Declining

    Not interested in profile

    Declined Offer
    Negative Experience
    Difficult Interview
  8. 2 people found this helpful  

    Financial Software Developer Interview

    Anonymous Interview Candidate  in  New York, NY
    Anonymous Interview Candidate in New York, NY
    Application Details

    I applied online - interviewed at Bloomberg L.P. in February 2012.

    Interview Details

    Standard Interview process, with recruiters visiting my school, there were 4 rounds of on campus interviews, roughly 50 minutes each. First 2 where with 2 software developers, then 1 HR interview and lastly a senior executive interviewed me.

    Interview Questions
    • The exact details are a bit hazy, the basic idea was as follows. Implement a storage class using in c++. The storage class had to store doubles in an array and write to both ends of the array, while recycling the space as efficiently as possible.   View Answer
    Negotiation Details
    I did not negotiate
    Accepted Offer
    Positive Experience
    Difficult Interview
  9. 2 people found this helpful  

    Financial Software Developer Interview

    Anonymous Interview Candidate  in  Orlando, FL
    Anonymous Interview Candidate in Orlando, FL
    Application Details

    I applied through college or university. The process took 2 weeks - interviewed at Bloomberg L.P. in October 2013.

    Interview Details

    Submitted my resume at an on-campus career fair, and got a call several days later to schedule a on-campus interview the next morning. Talked with 6 recruiters the next day. After about five days, got the offer.

    Interview Questions
    • Not many, mostly technical questions focusing on coding, two or three behavioral questions such as why Bloomberg and what's most important for you other than money etc. I use Java though Bloomberg uses C++ most.   View Answer
    Negotiation Details
    The package is generous for a new graduate, I didn't plan to negotiate....
    Accepted Offer
    Positive Experience
    Difficult Interview
  10. 1 person found this helpful  

    Financial Software Developer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied online. The process took 3 days - interviewed at Bloomberg L.P. in September 2013.

    Interview Details

    Got a phone interview with a mobile developer there asked about basic stuff like what's the difference between java and c++and polymorphism,inheritance an memory mangement (heap-Stack) virtual functions

    Interview Questions
    Accepted Offer
    Positive Experience
    Average Interview

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