Short recruiter phone screen, then a 60 minute technical interview with a person from the team you're interviewing for. If you pass that, you'll get a full loop of interviews with a system design question.
Interview questions [1]
Question 1
0/1 Knapsack problem, and a variant where you have a limit of 3 stones to choose from (which then becomes a 3sum variant)
I applied through a recruiter. The process took 3 weeks. I interviewed at Bloomberg (New York, NY) in Mar 2025
Interview
Matched with two teams and proceeded to the final on-site for both of them. The technical screening was similar to what others have described on here - one to two medium/medium-hard questions to complete. Team may ask some questions on your resume, or just jump right into the problem. There is a very clear disconnect between the recruiters and teams when it comes to the final round - I received a prep guide and had a prep call that very clearly indicated the system design round would be a High Level Design for a distributed system. Come the actual system design interview, the engineers spent about 30 minutes asking questions on my resume and teaching me about financial concepts, leaving me roughy 20 minutes to implement a low level class design for complex financial logic I just learned minutes before in the interview. Had I known the process would be like this, I could have tried to prepare better but I was blindsided due to the inaccuracy of the recruiter prep call and prep guide document. The engineers in my on-site were also completely uninterested in answering thoughtful questions I put together after reading articles and doing research on the company. By the end of the interview, I was no longer interested in working with the team.
Interview questions [1]
Question 1
Leetcode medium/medium hard questions, low level design question
I applied online. The process took 1 week. I interviewed at Bloomberg (New York, NY) in Jan 2025
Interview
- 30 min Phone screening (regular talk for expectations and introduction)
- 1 hour Code screening (coding task with incrementing requirements)
- 2 hours Coding Session (1 hour for 2 puzzles, 1 hour for System Design)
- 2 hours HR / Lead Interview (Behavioral / Coding)
- CTO / CEO / Head of Department
Interview questions [4]
Question 1
Simulate stream to output result in correct sequence, provide solution to avoid memory leaking.
Input seqeuence is 1, 2, 4, 5, 3, 6
Output seqeuence is 1, 2, 3, 4, 5 ,6
Efficient way to store data with conditions
- store all data elements without duplications (latest one replaces firtss one duplication)
- avoid memory leaking
- all operations in O(1) time complexity