Reval Analytics Software Engineer Interview Questions and Answers

Q1. LLD/Machine coding - Design a social media application with users, posts, comments, likes, etc. There is also an admin who needs to approve post creation and can delete any post they want. Create appropria...read more
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Q1. High-level design - Design a chat-based application like WhatsApp with only user-to-user chat feature (no group chats). Explain and draw out the E2E design by mentioning all the components and design decis...read more
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Q1. Hiring Manager - basic questions like why Razorpay, what are your career goals, what does career growth look like for you, etc.
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Q1. Just to know more about why i want the role
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Testing an payment flow on the application

Q1. They asked Java coding question
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4 question (1.5 hrs test) 400 points (100 points for question each)

Q1. Calculate the no.of consecutive zeroes in a binary array
Ans. 
Count consecutive zeroes in a binary array
• Iterate through the binary array and keep track of the maximum consecutive zeroes encountered

• Reset the count of consecutive zeroes when a non-zero element is encountered

• Return the maximum consecutive zeroes found
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Q2. Return k pairs of subsets having sum=num
Ans. 
Return k pairs of subsets with sum=num
• Use a nested loop to iterate through all possible pairs of subsets

• Check if the sum of the subsets equals the target num

• Store the valid pairs in an array and return k pairs
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2 coding questions, 1hr

What is the difference between a HashMap and a ConcurrentHashMap?

Coding simple problem

Q1. Prepare for normal system design questions and you are good to go
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