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Blackrock Software Engineer Interview Questions and Answers

Updated 5 Nov 2024

Blackrock Software Engineer Interview Experiences

3 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Asked everything that was present in my resume
  • Q2. DBMS, OOps were asked a lot and react as well
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

60 mins and basic quants-based questions along with SQL

Round 2 - Technical 

(2 Questions)

  • Q1. Multi-Threading in Python - GIL
  • Ans. 

    Global Interpreter Lock (GIL) in Python restricts execution of multiple threads at once to prevent race conditions.

    • GIL is a mutex that protects access to Python objects, preventing multiple threads from executing Python bytecodes at once.

    • This means that even in a multi-threaded Python program, only one thread can execute Python code at a time.

    • GIL can limit the performance of multi-threaded Python programs, especially f...

  • Answered by AI
  • Q2. Certifications in my resume - AWS and Ethical Hacking

Interview Preparation Tips

Interview preparation tips for other job seekers - Through your resume well and don't falsify your skills

Skills evaluated in this interview

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Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Coding Test 

They asked you to reverse a palidrome

Interview Preparation Tips

Interview preparation tips for other job seekers - Good place

Interview questions from similar companies

Interview Preparation Tips

Round: Test
Experience: 7 CGPA cut off, The First round was an Aptitude test (quant+DI+verbal ) 20 questions + 10 basic C/C+ questions
Total Questions: 30

Round: Other Interview
Experience: Second Stage: 2 rounds Tech interview + 1 HR, Very casual personal interview with questions based on resume onlyNo core coding questions since I was from ECE but for Comps/IT they expect knowledge in DBMS.Some finance questions like what are stocks/shares, mutual funds etc. I was asked more detailed finance questions also since I had mentioned my finance interns.

Skill Tips: Be thorough with apti tests . Past CAT papers are ideal as they cover all aspects  (quant+Data Interpretation +Logical reasoning +verbal ) For learning finance jargon use Economist A-Z list and Investopedia
Skills: quant, Data Interpretation , Logical reasoning
College Name: NIT SURATHKAL

I was interviewed before Mar 2021.

Round 1 - Face to Face 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

Technical round with questions on DSA and OS.

  • Q1. 

    LRU Cache Design Problem Statement

    Design and implement a data structure for a Least Recently Used (LRU) cache that supports the following operations:

    • get(key) - Retrieve the value associated with the...
  • Ans. 

    Design and implement a Least Recently Used (LRU) cache data structure that supports get and put operations with a specified capacity.

    • Implement a doubly linked list to keep track of the order of keys based on their usage.

    • Use a hashmap to store key-value pairs for quick access and updates.

    • When a key is accessed or updated, move it to the front of the linked list to mark it as the most recently used.

    • When the cache reaches...

  • Answered by AI
  • Q2. 

    Maximum of All Subarrays of Size K

    Given an array of non-negative integers and an integer K representing the length of a subarray, your task is to determine the maximum elements for each subarray of size ...

  • Ans. 

    Find the maximum elements for each subarray of size K in a given array.

    • Iterate through the array and maintain a deque to store the indices of elements in decreasing order.

    • Pop elements from the deque that are out of the current window.

    • Keep track of the maximum element in each subarray of size K.

    • Return the maximum elements for each subarray.

  • Answered by AI
  • Q3. What is virtual memory?
  • Ans. 

    Virtual memory is a memory management technique that allows a computer to compensate for physical memory shortages by temporarily transferring data from RAM to disk storage.

    • Virtual memory allows programs to use more memory than is physically available on the system.

    • It helps in multitasking by allowing multiple programs to run simultaneously without running out of memory.

    • Virtual memory uses a combination of RAM and disk...

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAGoldman Sachs interview preparation:Topics to prepare for the interview - Coding Skills, Operating Systems , Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 5 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Frequency of each word ina sentence
  • Ans. 

    To find the frequency of each word in a sentence.

    • Split the sentence into words

    • Create a dictionary to store word frequency

    • Iterate through the words and update the dictionary

    • Return the dictionary

  • Answered by AI

Skills evaluated in this interview

I applied via LinkedIn and was interviewed in Mar 2021. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. All were Ds and algo questions?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared on DS and algo section. Also keep practising on online competitive coding.

I applied via Naukri.com and was interviewed in Nov 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Spring, Hibernate and java and angular questions
  • Q2. What is REST API, Difference between Spring MVC and Spring Boot, Abstract class, interfaces etc
  • Ans. 

    Answering questions related to REST API, Spring MVC, Spring Boot, abstract class, and interfaces.

    • REST API is a set of rules for building web services. It uses HTTP methods to access resources.

    • Spring MVC is a framework for building web applications using the Model-View-Controller architecture.

    • Spring Boot is a framework for building standalone, production-grade Spring-based applications.

    • An abstract class is a class that ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared well on what you have mentioned on your resume.

I applied via LinkedIn and was interviewed in Nov 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Basic OOPS concepts?
  • Q2. Logical Coding like remove duplicates from array

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on your basic OOPS concepts

Interview Questionnaire 

1 Question

  • Q1. Java basics

Blackrock Interview FAQs

How many rounds are there in Blackrock Software Engineer interview?
Blackrock interview process usually has 1-2 rounds. The most common rounds in the Blackrock interview process are Aptitude Test, Technical and One-on-one Round.
How to prepare for Blackrock Software Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Blackrock. The most common topics and skills that interviewers at Blackrock expect are Computer science, SDLC, Agile, C++ and Coding.
What are the top questions asked in Blackrock Software Engineer interview?

Some of the top questions asked at the Blackrock Software Engineer interview -

  1. Multi-Threading in Python - ...read more
  2. DBMS, OOps were asked a lot and react as w...read more

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Blackrock Software Engineer Interview Process

based on 3 interviews

Interview experience

4
  
Good
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Blackrock Software Engineer Salary
based on 53 salaries
₹10 L/yr - ₹22 L/yr
73% more than the average Software Engineer Salary in India
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Blackrock Software Engineer Reviews and Ratings

based on 2 reviews

3.9/5

Rating in categories

2.0

Skill development

3.1

Work-life balance

2.9

Salary

4.1

Job security

3.9

Company culture

3.0

Promotions

2.0

Work satisfaction

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