Four interviews, forty five mins each. Met folks from different teams for their rotation program. Everyone was super smart and clearly excited about working there. Didn't end up taking the job because I decided to stay outside Chicago.
Accepted offer
Positive experience
Difficult interview
Application
I applied through an employee referral. The process took 2 weeks. I interviewed at BlackRock (New York, NY) in Mar 2015
Interview
one round phone interview: code interview and java knowledges
four rounds of onsite interview in one day: 70% java questions, 29% code interview, 1% SQL
a lot java concurrency questions, and java advanced features. code interview and SQL questions are very basic.
Interview questions [1]
Question 1
difference between hashtable, hashmap and concurrent hashmap in java
count sort
decode ways
reverse linked list
There was fitst technical round out of three round.
In my first round they asked a DSA Coding question. I do not quite remember the question that was asked, but it did not go well and was rejected.
I applied through university. I interviewed at BlackRock (Manipal) in Sept 2025
Interview
On campus Interview, asked question about my projects and resume in depth. No dsa questions, just grilled on resume and websockets.
Two round, technical focused on my resume and one HR round that focused on getting to know me and normal hr questions.
Interview questions [1]
Question 1
How would you describe AI to childs or old people?