Zolo Software Engineer Interview Questions and Answers

Q1. Design system for splitwise
Ans. 
Design a system for managing shared expenses among friends
• Create user accounts with email verification

• Allow users to create groups and add expenses

• Implement algorithms to calculate balances and settle debts

• Provide notifications for pending payments

• Include features for adding notes and attaching receipts
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Q1. Design facebook with functionalities like add post, delete post, follow user, unfollow user, retrieve posts etc.
Ans. 
Designing a social media platform like Facebook with key functionalities.
• Implement user authentication and authorization for secure access.

• Create a database schema for users, posts, and relationships.

• Develop features for adding, deleting, and retrieving posts.

• Implement follow/unfollow functionality for users.

• Design a news feed algorithm to display posts from followed users.

• Include features for liking, commenting, and s...read more
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Q1. Behavioural questions alongwith basic dsa and dbms.
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Q1. Cab booking system
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Machine coding round asked LLD based problem

Q1. Why you want to join meesho what should be your job location
Ans. 
I want to join Meesho because of its innovative work culture and growth opportunities. My preferred job location is Bangalore.
• Innovative work culture at Meesho attracts me

• Opportunities for growth and learning

• Bangalore is my preferred job location for its tech ecosystem
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Q2. Do you want 6 month internship or not
Ans. 
I am open to a 6 month internship opportunity.
• I am open to gaining valuable experience through a 6 month internship.

• I am willing to commit to a 6 month internship to enhance my skills.

• I believe a 6 month internship will provide me with practical knowledge in the field.
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Q3. Asked question about project
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Q1. It was lld question to design a cab booking system.
Ans. 
Design a cab booking system to manage ride requests, driver assignments, and payment processing efficiently.
• User Registration: Users can sign up with their phone number and email.

• Ride Request: Users can request a ride by entering their pickup and drop-off locations.

• Driver Matching: The system matches available drivers based on proximity and user ratings.

• Ride Tracking: Users can track their ride in real-time on a map in...read more
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Q2. Tell me about yourself
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HAckerrank based test

Seat reservation system
bit manipulation
binary tree related

Q1. Bfs / dfs traversal question
Ans. 
BFS and DFS are graph traversal algorithms used to explore nodes and edges in a graph or tree structure.
• BFS (Breadth-First Search) explores neighbors level by level, using a queue.

• DFS (Depth-First Search) explores as far as possible along a branch before backtracking, using a stack.

• Example of BFS: In a tree, starting from the root, visit all nodes at depth 1 before moving to depth 2.

• Example of DFS: In a tree, starting ...read more
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Q1. Stock buy and sell with at most 2 transaction
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Q2. Binary search to find target
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Q1. General about project
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Q2. Design paytm wallet
Ans. 
Design a digital wallet system similar to Paytm.
• Allow users to add money to their wallet using various payment methods like credit/debit cards, net banking, UPI, etc.

• Enable users to make payments for various services like mobile recharge, bill payments, online shopping, etc.

• Implement security measures like two-factor authentication, encryption of sensitive data, and regular security audits.

• Provide features like transac...read more
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