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Tata 1mg Software Developer Interview Questions, Process, and Tips

Updated 2 Dec 2024

Top Tata 1mg Software Developer Interview Questions and Answers

  • Q1. Biggest Number Formation Problem Your task is to construct the largest number possible by concatenating each of the provided positive integers in the array exactly once. ...read more
  • Q2. Maximum Subarray Sum Problem Statement Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum su ...read more
  • Q3. Number of Longest Increasing Subsequence Problem Statement Given an integer array ARR of length N , determine the count of longest increasing subsequences present in the ...read more
View all 12 questions

Tata 1mg Software Developer Interview Experiences

6 interviews found

Software Developer Interview Questions & Answers

user image Chirag Varshney

posted on 2 Dec 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(4 Questions)

  • Q1. Explain Deadlock?
  • Q2. Explain Red Black Tree?
  • Q3. Find local minima in a 1-D array?
  • Q4. Find local minima in 2-D array?
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Majorily on SQL and Databases

Round 2 - Technical 

(2 Questions)

  • Q1. Align two images in a page with same width and same height
  • Ans. 

    Use CSS to align two images with same width and height on a page

    • Set both images to have the same width and height using CSS

    • Use flexbox or grid layout to align the images horizontally or vertically

    • Adjust margins or padding as needed for spacing

  • Answered by AI
  • Q2. Array related question
Round 3 - HR 

(2 Questions)

  • Q1. Situation based question
  • Q2. Majorily focused on project

Skills evaluated in this interview

Software Developer Interview Questions Asked at Other Companies

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Q3. Merge Two Sorted Arrays Problem Statement Given two sorted intege ... read more
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Software Developer Interview Questions & Answers

user image Abhishek Chauhan

posted on 13 Oct 2023

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via campus placement at National Institute of Technology (NIT), Hamirpur and was interviewed in Apr 2023. There were 2 interview rounds.

Round 1 - Coding Test 

2 coding question one on maximum sum problem and other on tree traversal

Round 2 - Technical 

(1 Question)

  • Q1. Dbms oops dsa questions are there and one coding question which you have to pseudo code it and dry run it

I was interviewed in Dec 2021.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 minutes
Round difficulty - Medium

There were a total of 3 coding questions to be solved, and the time limit was 90 minutes. The candidate was free to use language of their choice.

  • Q1. 

    Longest Palindromic Subsequence Problem Statement

    Given a string A consisting of lowercase English letters, determine the length of the longest palindromic subsequence within A.

    Explanation:

    • A subsequ...
  • Ans. 

    The task is to find the length of the longest palindromic subsequence in a given string.

    • A subsequence is a sequence generated from a string after deleting some or no characters of the string without changing the order of the remaining string characters.

    • A string is said to be palindrome if the reverse of the string is the same as the actual string.

    • Find the longest palindromic subsequence by considering all possible subs...

  • Answered by AI
Round 2 - Video Call 

(2 Questions)

Round duration - 45 minutes
Round difficulty - Easy

The first round of interview lasted for around 45 minutes. I was asked two DSA questions, and was supposed to code them while my screen was shared. I wrote code for both the questions with little help from the interviewer. Finally, I was asked couple of questions based on my resume.

  • Q1. 

    Merge Two Sorted Linked Lists Problem Statement

    You are provided with two sorted linked lists. Your task is to merge them into a single sorted linked list and return the head of the combined linked list.

    ...
  • Ans. 

    The task is to merge two sorted linked lists into a single sorted linked list.

    • Create a new linked list to store the merged list

    • Compare the values of the nodes from both lists and add the smaller value to the new list

    • Move the pointer of the list with the smaller value to the next node

    • Repeat the comparison and addition until one of the lists is empty

    • Add the remaining nodes from the non-empty list to the new list

    • Return th

  • Answered by AI
  • Q2. 

    Rotational Equivalence of Strings Problem Statement

    Given two strings 'P' and 'Q' of equal length, determine if string 'P' can be transformed into string 'Q' by cyclically rotating it to the right any num...

  • Ans. 

    The task is to check if one string can be converted into another string by cyclically rotating it to the right any number of times.

    • Iterate through each character of the first string and check if it matches the corresponding character in the second string after a certain number of cyclic rotations.

    • If all characters match for any number of cyclic rotations, then the first string can be converted into the second string.

    • Us...

  • Answered by AI
Round 3 - Video Call 

(1 Question)

Round duration - 30 minutes
Round difficulty - Medium

I was given one data structure question and was then asked about recursion.

  • Q1. 

    Next Greater Element Problem Statement

    You are provided with an array or list ARR containing N positive integers. Your task is to determine the Next Greater Element (NGE) for each element in the array.

    T...

  • Ans. 

    The task is to find the next greater element for each element in an array.

    • Iterate through the array from right to left

    • Use a stack to keep track of the elements

    • For each element, pop elements from the stack until a greater element is found or the stack is empty

    • If a greater element is found, it is the next greater element for the current element

    • If the stack becomes empty, there is no greater element to the right

    • Store the ...

  • Answered by AI
Round 4 - Video Call 

(1 Question)

Round duration - 40 minutes
Round difficulty - Easy

This was the hiring manager round. No data structures question were asked in this round. There was discussion around the projects that I had done and my resume. As I am from EEE branch, I was asked why I want to get into software. The interview happened around 8 PM. I was asked to create a schema for one of my projects.

  • Q1. Why do you want to pursue a career in software?
  • Ans. 

    I want to get into software because of my passion for problem-solving and the opportunity to create innovative solutions.

    • Passion for problem-solving

    • Opportunity to create innovative solutions

    • Interest in technology and its impact on society

    • Career growth and job stability

    • Flexibility and remote work options

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Bharati Vidyapeeth's College of Engineering. I applied for the job as SDE - 1 in GurgaonEligibility criteriaAbove 7 CGPATata 1mg interview preparation:Topics to prepare for the interview - Data Structures, Dynamic Programming, Number Theory, LLD, PuzzlesTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Practice regularly, meaning once you have covered all the topics, revisit them every week, and solve 3-5 questions.
Tip 2 : Use the Feynman technique. Explain your approach towards solving the problem to someone, or better yet, note it down so that when you revisit that question, the explanation is handy. 
Tip 3 : Do 1 project, preferably a full-stack one including a database. This would provide some material for discussion, and be through with each aspect of the project.

Application resume tips for other job seekers

Tip 1 : Keep the resume to one page and put info that is directly related to the role applied. 
Tip 2 : In the projects section, keep a maximum of 3 projects, but ensure that at least one of them is hosted/live that can be shown to the interviewer.

Final outcome of the interviewSelected

Skills evaluated in this interview

Tata 1mg interview questions for designations

 Software Developer II

 (1)

 Software Engineer

 (1)

 Backend Developer

 (2)

 Senior Software Engineer

 (1)

 Software Development Engineer

 (1)

 Software Development Engineer 1

 (1)

 Software Development Engineer Intern

 (1)

 QA Engineer

 (2)

I was interviewed in Dec 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

It has 3 Coding Questions of medium-hard level and the time limit was 1 hour only. I don’t exactly remember the questions but I was able to do only two of them completely.

  • Q1. 

    Biggest Number Formation Problem

    Your task is to construct the largest number possible by concatenating each of the provided positive integers in the array exactly once.

    Input:

    Integer T denoting the nu...
  • Ans. 

    Using the inbuilt library of Python, itertools library can be used to perform this task.

  • Answered Anonymously
  • Q2. 

    Number of Longest Increasing Subsequence Problem Statement

    Given an integer array ARR of length N, determine the count of longest increasing subsequences present in the array.

    Explanation:

    The Longest I...

  • Ans. 

    Querying the length of the longest is fairly easy. Note that we are dealing with end elements only. We need not maintain all the lists. We can store the end elements in an array. Discarding operation can be simulated with replacement, and extending a list is analogous to adding more elements to the array.
    We will use an auxiliary array to keep end elements. The maximum length of this array is that of input. In the worst...

  • Answered Anonymously
Round 2 - Telephonic Call 

(3 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

First, the interviewer introduced himself and then asked to introduce myself. Then he asked about the projects I did. After an introductory discussion on projects, he gave me 3 coding questions on their personal live code environment.

He asked me to explain the approach first and then code it down. I had to explain the time complexity of each solution and optimal code if possible with lesser time complexity.

  • Q1. 

    Cache Operations Problem

    You are provided with a cache that can hold a maximum of 'N' elements. Initially, this cache is empty. There are two main operations you can perform on this cache:

    Explanation:

      ...
  • Ans. Brute Force

    We can maintain a list of cache initialized with -1 which represents all the cells in the cache are empty. Declare a list that stores value at ith position, frequency of times it was used, and last operation it was used. 

    Declare a list ‘ANS’ that stores answer for all queries of type 2. We perform each operation as follows:-

     

    • If the operation is of type 1 then iterate cache and check if the element ...
  • Answered Anonymously
  • Q2. 

    Possible Words from a Phone Number: Problem Statement

    Given a string S composed of digits ranging from 2 to 9, determine all possible strings that can be created by mapping these digits to their correspon...

  • Ans. 

    I explained to him the logic of my approach and he seems satisfied with it. It was sort of medium-level difficulty.

  • Answered Anonymously
  • Q3. 

    Shortest Unique Prefix Problem

    You are given an array containing N words. Your task is to derive the shortest prefix for each word that uniquely identifies it amongst the other words. For instance, given t...

  • Ans. 

    I gave him a brute force approach with which he was not satisfied. Then he gave me time to think and asked for more optimized approach. Then after 5 min i gave him this Trie solution and then i explained him the structure of trie along with the code

  • Answered Anonymously
Round 3 - Telephonic Call 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Hard

In this round interviewer gave me 2 coding questions and asked me to code on any editor of my choice. I opened VS code to code those problems.

  • Q1. 

    Maximum Subarray Sum Problem Statement

    Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.

    Explanation...

  • Ans. 

    I explained to him my approach (Kadane’s algorithm) and he seems satisfied with it and asked to code it down.

  • Answered Anonymously
  • Q2. 

    LRU Cache Implementation

    Design and implement a data structure for the Least Recently Used (LRU) cache, which supports the following operations:

    1. get(key) - Return the value associated with the key if ...
  • Ans. 

    I gave him a brute force solution but the interviewer was not satisfied. I was stuck for some time, then he helped me with data structure (doubly linked list). After 15-20 min of discussion, I was able to do that question and code it down.

  • Answered Anonymously
Round 4 - HR 

Round duration - 40 Minutes
Round difficulty - Easy

The interviewer was very friendly. He asked me about myself and previous interviews.

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Bharati Vidyapeeth's College of Engineering. Eligibility criteria7.5 CGPATata 1mg interview preparation:Topics to prepare for the interview - Data Structures, OOPS, Algorithms, Dynamic Programming, Database Management, Operating System, Aptitude.Time required to prepare for the interview - 3.5 MonthsInterview preparation tips for other job seekers

Tip 1 : Do at least 2-3 Development Projects as it creates a great impression. 
Tip 2 : Do it simply don't include complex terms to explain anything/concept. 
Tip 3 : Practice as many questions as you can.

Application resume tips for other job seekers

Tip 1 : Resume should be one page only as being a fresher impacts a lot.
Tip 2 : Resumes should contain all the links for projects and certificates as it impresses the interviewer.

Final outcome of the interviewRejected

Skills evaluated in this interview

Get interview-ready with Top Tata 1mg Interview Questions

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. React JS, coding round, DSA, poly phill, map , shallow copy deep copy, popular JS DSA questions
Round 3 - Assignment 

Basic React JS clock/ stopwatch

Interview Preparation Tips

Interview preparation tips for other job seekers - know how to create componenets, and Easy to early medium level DSA leetcode JS based.

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Tree question dsa
  • Q2. Fibonacci sequence question

Interview Preparation Tips

Interview preparation tips for other job seekers - Round 1 - Technical: The first round involved solving one tree-based question and one array-based question. I was also asked about object-oriented programming concepts, Git commands, and SQL queries. In addition, I faced questions based on my resume projects, and I was asked to explain the difference between a primary key and a unique key.

Round 2 - Technical: The second round focused more on system design and APIs. I was asked to explain the difference between PUT and POST in REST APIs, design the database schema of one of my projects, and discuss inheritance and access modifiers (public, private, protected). Git commands were also covered. A scenario-based question was presented: "How would you send an email to a million users, ensuring that if an email fails, the system retries sending it three times? If the retries fail, the system should move on to the next email. Additionally, if the system crashes after sending 1000-2000 emails, how would you ensure that upon restart, it resumes from where it left off without resending emails?"

The HR was friendly, clearly explained the next steps, and provided constructive feedback. Overall, it was a positive interview experience.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

The exam duration is one and a half hours.

Round 2 - Coding Test 

The total exam time is one and a half hours.

Round 3 - Group Discussion 

It encompasses all topics related to full stack development.

Round 4 - Technical 

(2 Questions)

  • Q1. Asks questions on SQL
  • Q2. Asks question in typical topics
Round 5 - HR 

(1 Question)

  • Q1. Where do you see yourself in two years?
  • Ans. 

    In two years, I see myself as a senior software developer leading a team on innovative projects.

    • Advancing to a senior software developer role

    • Leading a team on new and innovative projects

    • Continuing to enhance my technical skills through ongoing learning and training

  • Answered by AI
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Technical 

(2 Questions)

  • Q1. LRU Cache - how to tackle
  • Ans. 

    LRU Cache is a data structure that maintains a list of items in order of most recently used to least recently used.

    • Implement using a doubly linked list and a hashmap for efficient operations

    • When an item is accessed, move it to the front of the list

    • When the cache is full, remove the least recently used item from the end of the list

  • Answered by AI
  • Q2. LRU Cache implementation based on a real time system. How would the main work which will be called etc etc
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Oct 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

Easy level to Medium level

Round 2 - Coding Test 

2 Easy questions of DSA

Round 3 - One-on-one 

(2 Questions)

  • Q1. One DSA question
  • Q2. Normal discussion about tech stack
Round 4 - HR 

(2 Questions)

  • Q1. Tell about yourself
  • Q2. Why do you want to join digit?

Interview Preparation Tips

Interview preparation tips for other job seekers - Go easy.. Nothing is hard in digit hiring

Tata 1mg Interview FAQs

How many rounds are there in Tata 1mg Software Developer interview?
Tata 1mg interview process usually has 2-3 rounds. The most common rounds in the Tata 1mg interview process are Technical, Resume Shortlist and Coding Test.
How to prepare for Tata 1mg Software Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Tata 1mg. The most common topics and skills that interviewers at Tata 1mg expect are Java, Python, Software Development, Algorithms and Automation Testing.
What are the top questions asked in Tata 1mg Software Developer interview?

Some of the top questions asked at the Tata 1mg Software Developer interview -

  1. Align two images in a page with same width and same hei...read more
  2. Dbms oops dsa questions are there and one coding question which you have to pse...read more
  3. React JS, coding round, DSA, poly phill, map , shallow copy deep copy, popular ...read more

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Tata 1mg Software Developer Interview Process

based on 4 interviews

1 Interview rounds

  • Coding Test Round
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Tata 1mg Software Developer Salary
based on 37 salaries
₹10 L/yr - ₹30 L/yr
146% more than the average Software Developer Salary in India
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Tata 1mg Software Developer Reviews and Ratings

based on 12 reviews

3.2/5

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2.9

Skill development

3.1

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2.9

Salary

2.9

Job security

2.9

Company culture

2.2

Promotions

2.9

Work satisfaction

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