HashedIn by Deloitte SDE-2 Interview Questions and Answers

Q1. Design a jira system integrated with github
Ans. 
A Jira system integrated with GitHub streamlines project management and version control, enhancing collaboration and tracking.
• Issue Tracking: Jira allows teams to create, assign, and track issues, while GitHub manages code changes, linking commits to Jira issues.

• Automation: Use webhooks to automate transitions in Jira based on GitHub events, like moving an issue to 'In Progress' when a branch is created.

• Pull Request In...read more
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Q2. Architecture of the flow of the jira design
Ans. 
Jira's architecture supports project management through a modular design, integrating workflows, issues, and user collaboration.
• Modular Architecture: Jira is built on a modular architecture, allowing for plugins and extensions to enhance functionality, such as adding custom fields.

• Issue Tracking: Central to Jira's design is its issue tracking system, where each task or bug is represented as an issue that can be priorit...read more
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Q3. Bean and it's lifecycles
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Round duration - 30 minutes
Round difficulty - Easy

Interviewer had good knowledge

Q1. 
Pair Sum Problem Statement
You are provided with an array ARR consisting of N distinct integers in ascending order and an integer TARGET. Your objective is to count all the distinct pairs in ARR whose sum...read more
Ans. 
Count distinct pairs in an array whose sum equals a given target.
• Use two pointers approach to find pairs efficiently.

• Keep track of visited elements to avoid duplicates.

• Return -1 if no such pair exists with the sum equal to 'TARGET'.
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Round duration - 60 minutes
Round difficulty - Hard

LLD

Q1. Can you describe the database design for a ticket booking system like BookMyShow?
Ans. 
Database design for a ticket booking system like BookMyShow involves tables for users, events, bookings, and venues.
• Create a table for users with columns like user_id, name, email, phone_number, etc.

• Create a table for events with columns like event_id, name, date, time, venue_id, etc.

• Create a table for bookings with columns like booking_id, user_id, event_id, booking_date, status, etc.

• Create a table for venues with col...read more
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Round duration - 15 minutes
Round difficulty - Medium

Interview experience 
Salary negotiation

2 questions, one on arrays and other on stack, both medium level

Q1. Easy to medium questions on lists and strings
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Q1. System design round where music system system (spotify) was asked
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Q1. Why Hashedin as a choice of company
Ans. 
Hashedin offers challenging projects, great learning opportunities, and a supportive work culture.
• Challenging projects in cutting-edge technologies like cloud computing, AI, and IoT.

• Opportunity to work with top clients across various industries.

• Supportive work culture with emphasis on learning and growth.

• Strong focus on innovation and continuous improvement.

• Positive reviews from current and former employees on platform...read more
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Q2. Location, higher studies, family, etc.
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Round duration - 60 minutes
Round difficulty - Medium

This was a technical round in the evening with a Software Engineer II which included a coding question along with a few questions on Core Java fundamentals. 
I was given the option to either go for the coding round first or java theory. I realised that I might need more time for coding so I decided to opt for the coding round first, followed by the java related questions later. 
The interviewer was extremely pleasant to speak with. He initially asked me to introduce myself and we spoke in depth about a project I worked on in my last organisation. The coding question was given on a google sheet but I was asked to code it on an online IDE without any special syntax correction features.

 

Q1. 
Minimum Count of Balls in a Bag Problem Statement
You are given an integer array ARR of size N, where ARR[i] represents the number of balls in the i-th bag. Additionally, you have an integer M, which indi...read more
Ans. 
Find the minimum possible value of the maximum number of balls in a bag after performing a given number of operations.
• Iterate through the bags and split them to minimize the maximum number of balls.

• Keep track of the maximum number of balls after each operation.

• Return the minimum possible value of the maximum number of balls.
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Round duration - 90 minutes
Round difficulty - Medium

This round was in the evening with a Senior Software Engineer. He introduced himself and immediately presented the question on Google Doc.

Round duration - 30 minutes
Round difficulty - Easy

This was a half an hour round with a Senior Manager.