AVIN Systems Senior Software Development Engineer Interview Questions and Answers

Medium DSA questions

Q1. String subsequence based question
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Q2. Only one question
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Computer Fundamentals

Q1. Flatten a binary tree
Ans. 
Flatten a binary tree by converting it into a linked list in-place.
• Use a recursive approach to flatten the binary tree.

• Traverse the tree in a pre-order manner and keep track of the previous node.

• Set the left child of each node to null and the right child to the next node in the linked list.

• Example: Input: 1 -> 2 -> 5 -> 3 -> 4 -> null, Output: 1 -> null -> 2 -> null -> 3 -> null -> 4 -> null -> 5 -> null
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2 dsa questions of easy/medium

Q1. Asked two dsa questions of leetcodeeasy/medium
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Q1. Asked two dsa questions of leetcode easy/medium
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Q1. Asked one dsa question on tree and discussion on resume and dbms os
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Q1. Salary Discussion
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Q1. Techical questions and coding questions related profile.
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Q2. Basic concepts about your programming skills.
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Q1. Explain your Project and resume based questions.
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Q2. Architecture of your Project
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Q3. Database Design Question. How will you store category, sub-category and further subcategories in Database. Consider the category menulist list of Flipkart for example.
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Q1. Low-Level Design of Parking Lot.
Ans. 
Design a parking lot system including classes, functions, and data structures.
• Create a ParkingLot class with attributes like capacity, available spots, and a list of parking spots.

• Implement a Vehicle class with attributes like license plate number, size, and type.

• Design a ParkingSpot class with attributes like spot number, availability, and size.

• Use data structures like arrays or lists to manage parking spots and vehic...read more
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Q2. Don't miss out interior details e.g. addressing parallel access using locks if needed.
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Q1. Mixed of Technical and HR Round.
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Q2. Resume based questions.
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Q3. Had to explain of software practices followed in my projects such as proper unit testing, CI/CD deployment process, scrum practices etc.
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Solving normal Puzzles to test aptitude.

Sample app was asked to create.

They have their own coding platform. The questions are basically from tree.

Tree of space question

Q1. Previous round question solution
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Q2. System design was asked.
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Q1. React, React Native Basics
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Q2. Coding Arrays & Objects
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