Visa Interview Experience for Software Engineer | On-Campus 2020

Round 1 Online Assessment: 2 Coding question

1. Based on compare function. Used 6 compare functions based on different conditions to sort data(array of structures) and display them.
2. https://www.geeksforgeeks.org/minimum-swaps-required-sort-binary-array/. Similar to this.

Technical Round 1 (35-45min)

1. Introduce Yourself.
2. Discussion on projects. (15-20min)
3. Queue using two Stacks.
4. Abstraction(OOPS)
5. Normalization and why do we do it, explain with examples?
6. Basic Questions on CN, OS too.

Technical Round 2 (1hr.):

1. Introduce Yourself.
2. Discussion on projects. (15-20min)
3. Find if a given tree is a binary search tree or not. (Program it from scratch, binary search tree also)
4. I gave an Inorder traversal technique and coded it, and then he asked to reduce space complexity and then coded it using INT_MAX,INT_MIN using recursion.
5. Coding questions based on strings, convert them to a space-separated array of strings and for loops.

Technical Round 3(40-50min) – Final Round

1. Taken by very high authority some VP of Visa India.
2. Introduce Yourself.
3. Discussion on projects.
4. He picked up words from every sentence that I speak and then discussed on same.
5. Design your own Hashing Algorithm.
6. What is your hobby? I mentioned playing Minecraft.
7. He asked me to Design Minecraft.LOL. I only identified a few entities and relationships between them.
8. Design Hostel Management System.
9. Challenged faced during the lockdown and some general discussion on Visa Work Culture etc.

Only 1 selected. Out of 4 in the final round, I was rejected.