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Interview questions from top companies, mapped to the exact round they show up in. Prep for what you will actually face.

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Online AssessmentDSA / CodingMachine CodingLow-Level Design

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The Loop aggregates publicly shared interview experiences and curated commonly-asked questions, each labeled with its source. Not affiliated with any company listed.

CC BY-NC 4.0 · © 2026

← HCLTech

New Grad / Junior Full-stack at HCLTech

Full-stackNew Grad / JuniorNo offer◆ Commonly asked· 2025

Junior fullstack interview. Fundamentals mattered as much as getting to an answer.

The loop · 5 rounds

01

Round 01 · 1 question

Online Assessment

Timed online coding / aptitude screen, usually the first filter.

  • Find the number of distinct substrings of length k.
    New Grad / JuniorMedium◆ Commonly asked
    #sliding-window#string
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Pow(x, n).
    New Grad / JuniorMedium◆ Commonly asked
    #math#recursion
    PracticeLeetCode↗GeeksforGeeks↗
  • Construct binary tree from preorder and inorder traversal.
    New Grad / JuniorMedium◆ Commonly asked
    #tree#recursion
    PracticeLeetCode↗GeeksforGeeks↗
  • Climbing stairs.
    New Grad / JuniorEasy◆ Commonly asked
    #dp
    PracticeLeetCode↗GeeksforGeeks↗
03

Round 03 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a color-picker with hex/rgb sync.
    New Grad / JuniorMedium◆ Commonly asked
    #react#ui
    PracticeGeeksforGeeks↗Search↗
  • Implement cursor-based pagination over a sorted dataset.
    New Grad / JuniorMedium◆ Commonly asked
    #pagination#api
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • SQL vs NoSQL — how do you choose for a given workload?
    New Grad / JuniorMedium◆ Commonly asked
    #databases
    PracticeGeeksforGeeks↗Search↗
  • How do you design a schema for a multi-currency ledger?
    New Grad / JuniorHard◆ Commonly asked
    #databases#money
    PracticeGeeksforGeeks↗Search↗
  • Explain how a hash index differs from a B-tree index.
    New Grad / JuniorHard◆ Commonly asked
    #databases#indexing
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

Values, collaboration, and past-experience (STAR) questions.

  • Tell me about a time you had to say no to a stakeholder.
    New Grad / Junior◆ Commonly asked
    #influence#star
  • A time you made a mistake in production — what happened next?
    New Grad / Junior◆ Commonly asked
    #ownership#star

◆ This experience is composed from commonly reported questions for this role and level. Real, individually-shared interviews will be layered in over time.