Tekion SDE-1 Backend | Apr 2025 | In person interview

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tekion
SDE-1 BackendBangalore
April 15, 20255 reads

Summary

I attended an in-person hiring drive for the SDE-1 Backend role at Tekion's Bangalore office. I cleared the DSA + Puzzle round but was not shortlisted after the Low-Level Design round for an Elevator System.

Full Experience

🧪 My Experience with the Tekion SDE-1 Backend Hiring Drive (April 13, 2025)

I attended the Tekion in-office hiring drive for the SDE-1 Backend role at their Bangalore office.


⚙️ Round 1: DSA + Puzzle

This round had 2 coding questions and 1 puzzle:

  • Construct Binary Tree from Preorder and Inorder Traversals
  • Largest Rectangle in Histogram
  • Camel and Banana Puzzle

I was able to solve all of them within the time limit and cleared the round.


🧱 Round 2: Low-Level Design

The LLD round was focused on designing an Elevator System. I discussed:

  • Entities like Elevator, Floor, Request, Controller, etc.
  • Design patterns like Strategy, Observer, and Singleton
  • Class relationships and interaction flow

But I couldn’t complete the code implementation within the given time.


🚫 Final Outcome

Was not shortlisted after the LLD round.

Interview Questions (4)

Q1
Construct Binary Tree from Preorder and Inorder Traversals
Data Structures & Algorithms

Construct Binary Tree from Preorder and Inorder Traversals

Q2
Largest Rectangle in Histogram
Data Structures & Algorithms

Largest Rectangle in Histogram

Q3
Camel and Banana Puzzle
Other

Camel and Banana Puzzle

Q4
Elevator System Design
System Design

The LLD round was focused on designing an Elevator System.

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