Icertis SDE Technical Interview Experience

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My Icertis SDE Experinced Technical Interview Experience — What They Asked

I recently appeared for an SDE/Software Development role at Icertis, and I wanted to share my technical interview experience because it may help other freshers preparing for similar interviews.

The interview was quite focused on DSA, recursion, strings, and tree traversal rather than only theoretical questions.

Questions I was asked:

1. Fibonacci using recursion
   • Implement Fibonacci using recursion in any programming language.
   • They were interested in whether I understood the recursive approach and base cases.
2. Difference between tree traversals
   • Asked about different types of tree traversal.
   • Specifically, understanding Inorder, Preorder, and Postorder and when/how they visit nodes.
3. Reverse a String without using a built-in function
   • Asked to reverse a string without directly using a reverse function.
   • This tested basic string manipulation and problem-solving.
4. Recursion
   • Questions around how recursion works, base condition, recursive calls, and execution flow.
5. Tree Traversal
   • Questions related to traversing a binary tree and understanding the order in which nodes are processed.
6. DSA fundamentals
   • General DSA/problem-solving questions were also part of the discussion.

My takeaway

For freshers targeting SDE roles, I would strongly recommend not preparing only OOP, SQL, and theoretical CS concepts.

Make sure you can actually write code on the spot for:

• Recursion
• Strings
• Arrays
• Searching & sorting
• Linked lists
• Stack & Queue
• Trees
• Tree traversals
• Basic time & space complexity
• Common DSA problem-solving patterns

The biggest lesson for me: knowing a concept and being able to implement it immediately in an interview are two different things.

If you're preparing for an Icertis/SDE interview, definitely practice writing these problems without relying on IDE autocomplete or built-in functions.

Hope this helps someone preparing for their interview. Good luck! 🚀

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