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BlackBerry Mobile Applications Developer Interview Questions

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Mobile Applications Developer Interview

Anonymous Interview Candidate
Anonymous Interview Candidate
Application Details

I applied online. The process took 4+ weeksinterviewed at BlackBerry.

Interview Details

I was an intern for two semesters before I applied back for the same team after graduation, so my experience may be shorter than others.

My interview for the intern position was a phone screen that lasted a little longer than an hour with 4 developers and 2 managers. The managers explained the projects that the respective teams owned while the developers asked questions. The questions mostly consisted of object oriented design principles of Java and regular expressions.

I applied through the public employment portal. The process took close to a month from scheduling an interview, through the background check, until I had an offer. The interview consisted of 6 rounds, 4 of them being technical questions or riddles and the other two regarding my experience outside of BlackBerry.

Interview Questions
  • For my internship the most expected question was whether or not interfaces are supported in C++. I answered, no that's a Java only construct. The interviewer then asked if I was familiar with the virtual keyword in cpp, at which point I realized that you could create an equivalent of a Java interface in cpp by creating an abstract class with only pure virtual member functions. A great question.

    For my full time interview, there a few trickster questions regarding memory management in C/C++ (e.g. when and where will this program crash, where is the memory leak, etc.) as well as a few general binary search tree and linked list questions. Expect a few questions regarding running time and concurrency, but nothing too grueling.
     
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Negotiation Details
The negotiation phase was simple enough, but seemed to draw out for too long. They offered me more than my ballpark figure was with good benefits. The longest and most grueling part was the background check.
Accepted Offer
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