Applied online through their site. After 2-3 weeks, I received an email to schedule a phone interview.

A 40-minute technical interview followed. It included general questions about my CV and what I knew about Bloomberg. The technical part was 70% Java and 30% C++.

Some of the Java questions included:

• What is a JVM?
• Advantages and drawbacks of the JVM
• How does the GC work?
• How does a hash table work?
• Basic types of collections

The C++ part covered:

• Differences between Java and C++ memory models
• Stack vs. heap allocation
• Difference between pointers and references
• The friend keyword
• Private, protected, and public visibility modifiers
• Differences between class and struct

Shortly after the phone interview, I was invited to their HQ in London for an in-house interview. There, I had three interviews:

• The first was with two junior software engineers.
• The second was with a senior software engineer.
• The third was with someone from Human Resources.

The technical part was almost completely C/C++, with standard questions on pointer arithmetic, function invocation, and algorithms.

After you formulate a solution to an algorithms question, you have to write the C implementation on paper.