Tech Mahindra

Tech Mahindra

Multinational IT services and consulting company.

4 Rounds ~21 Days Medium
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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

Cloud Engineer • Coding • hard

Write a Python script that traverses a given directory, finds all duplicate files based on their MD5 hash, and prints their paths.

#Python #File System #Hashing
Practice
Data Engineer • Coding • easy

Write a Python function to find the first non-repeating character in a given string. Optimize it for time complexity.

#Strings #Hash Maps
Practice
Data Scientist • Coding • hard

Implement a Python function to calculate the TF-IDF of a given corpus of text from scratch (without using Scikit-Learn).

#Python #TF-IDF #Math #NLP
Practice
Data Scientist • Coding • easy

Write a Python function to reverse a string without using built-in functions like reversed() or slicing [::-1].

#Python #Strings #Loops
Practice
Frontend Engineer • Coding • medium

Write a debounce function from scratch. How would you apply this to a search input field in a telecom billing portal to minimize API calls?

#Closures #Timers #Performance Optimization
Practice
Frontend Engineer • Coding • medium

Write a function that splits an array into chunks of a specified size.

#Arrays #Data Manipulation
Practice
Frontend Engineer • Coding • medium

Write a function to flatten a deeply nested object into a single-level object with dot-separated keys.

#Recursion #Object Manipulation #Data Structures
Practice
Frontend Engineer • Coding • medium

Write a function to deep clone a JavaScript object without using JSON.parse(JSON.stringify()).

#Recursion #Object Manipulation #Memory References
Practice
Frontend Engineer • Coding • easy

Write a function to check if two strings are anagrams of each other.

#Strings #Hash Maps #Sorting
Practice
Full Stack Engineer • Coding • easy

Find the first non-repeating character in a string and return its index.

#Strings #Hash Table
Practice
Full Stack Engineer • Coding • easy

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

#Arrays #Hash Table
Practice
Full Stack Engineer • Coding • medium

Find the longest substring without repeating characters in a given string.

#Strings #Sliding Window
Practice
Full Stack Engineer • Coding • medium

Given a collection of intervals, merge all overlapping intervals.

#Arrays #Sorting
Practice
Full Stack Engineer • Coding • easy

Reverse a singly linked list.

#Linked Lists #Pointers
Practice
Full Stack Engineer • Coding • hard

Detect a cycle in a directed graph.

#Graphs #DFS
Practice
Full Stack Engineer • Coding • easy

Write a function to check if a given string containing brackets is valid (Valid Parentheses).

#Stacks #Strings
Practice
Machine Learning Engineer • Coding • easy

Write a Python script to reverse a singly linked list.

#Data Structures #Linked Lists
Practice
Machine Learning Engineer • Coding • hard

Implement a basic K-Means clustering algorithm from scratch in Python.

#Python #Machine Learning #Math
Practice
Machine Learning Engineer • Coding • medium

Write a Python function to find the longest substring without repeating characters.

#Python #Strings #Sliding Window
Practice
Software Engineer • Coding • easy

Write a Java program to check if two strings are anagrams of each other.

#Strings #Hashing #Sorting
Practice
Software Engineer • Coding • hard

Merge two sorted arrays without using extra space.

#Arrays #Sorting #Optimization
Practice
Software Engineer • Coding • medium

Given an array of integers, find the contiguous subarray with the maximum sum (Kadane's Algorithm).

#Arrays #Dynamic Programming
Practice
Software Engineer • Coding • medium

Write a program to detect a loop in a LinkedList.

#LinkedList #Pointers
Practice
Software Engineer • Coding • medium

Find the second highest number in an integer array in a single pass.

#Arrays #Optimization
Practice
Software Engineer • Coding • easy

Write a program to reverse a string without using any inbuilt functions like reverse().

#Strings #Loops
Practice

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

Simulate

Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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