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Kellton Interview Questions and Answers

Updated 27 Mar 2025
Popular Designations

47 Interview questions

A Flutter Developer was asked
Q. What is setState in a stateful widget?
Ans. 

setState is a method used in stateful widgets to update the state of the widget and trigger a rebuild of the UI.

  • setState is called with a callback function that updates the state variables.

  • The callback function is executed asynchronously.

  • The new state values are merged with the old state values.

  • The widget is rebuilt with the updated state values.

View all Flutter Developer interview questions
A DOT NET Developer was asked
Q. What is Sql joins, cte, Sp vs function, user defined types,
Ans. 

SQL joins are used to combine rows from two or more tables based on a related column between them.

  • SQL joins are used to retrieve data from multiple tables based on a related column.

  • Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

  • CTE (Common Table Expression) is a temporary result set that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement.

  • Stored Procedures (SP) ar...

View all DOT NET Developer interview questions
A Senior Software Engineer was asked
Q. What is tuple, clousures, delegates, notifications
Ans. 

Tuple is an ordered collection of elements. Closures are self-contained blocks of code. Delegates are references to functions. Notifications are a way to send messages between objects.

  • Tuple: Used to group multiple values together. Example: (1, 'apple', True)

  • Closures: Encapsulate code and capture variables. Example: { (x: Int) -> Int in return x * 2 }

  • Delegates: Allow one object to communicate with another. Example:...

View all Senior Software Engineer interview questions
A Director Technology was asked
Q. What is micro-frontend? what is its architecture?
Ans. 

Micro-frontend is an architectural style where a frontend application is broken down into smaller, independent 'micro-applications'.

  • Each micro-frontend is responsible for a specific feature or functionality

  • Micro-frontends can be developed, tested, and deployed independently

  • They can communicate with each other through APIs or events

  • Common frameworks for implementing micro-frontends include single-spa, Webpack Modul...

View all Director Technology interview questions
A Software Developer was asked
Q. 

Reverse the String Problem Statement

You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.

Example:

Input:
STR = "abcde"
Output:
"ed...
Ans. 

Reverse a given string containing alphabets, numbers, and special characters.

  • Iterate through the string from the end to the beginning and append each character to a new string.

  • Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.

  • Handle special characters and numbers along with alphabets while reversing the string.

  • Ensure to consider the constraints provided ...

View all Software Developer interview questions
🔥 Asked by recruiter 2 times
A Software Developer Intern was asked
Q. 

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. 

Find the sum of the subarray with the maximum sum among all subarrays in an array of integers.

  • Iterate through the array and keep track of the maximum sum subarray seen so far

  • Use Kadane's algorithm to efficiently find the maximum subarray sum

  • Consider the case where all elements are negative to handle edge cases

View all Software Developer Intern interview questions
🔥 Asked by recruiter 2 times
A Software Developer Intern was asked
Q. 

Count Subsequences Problem Statement

Given an integer array ARR of size N, your task is to find the total number of subsequences in which all elements are equal.

Explanation:

A subsequence of an array is...

Ans. 

Count the total number of subsequences in which all elements are equal in an integer array.

  • Iterate through the array and count the frequency of each element.

  • Calculate the total number of subsequences for each element using the formula (frequency * (frequency + 1) / 2).

  • Sum up the total number of subsequences for all elements and return the result modulo 10^9 + 7.

View all Software Developer Intern interview questions
Are these interview questions helpful?
🔥 Asked by recruiter 2 times
A Software Engineer was asked
Q. 

Distinct Subsequences Problem Statement

You are given a string 'S' of length 'N' which may include duplicate alphabets. Your goal is to calculate the number of distinct subsequences in the string.

Example...

Ans. 

Calculate the number of distinct subsequences in a string with possible duplicates.

  • Iterate through the string and keep track of the count of each character.

  • Use dynamic programming to calculate the number of distinct subsequences.

  • Consider the cases where a character is included or excluded in the subsequence.

  • Modulo the final count by 10^9 + 7 to handle large answers.

View all Software Engineer interview questions
A Software Developer Intern was asked
Q. 

Minimum Sum in Matrix Problem Statement

You are given a 2D matrix 'ARR' of size 'N x 3' with integers, where 'N' is the number of rows. Your task is to compute the smallest sum achievable by selecting one ...

Ans. 

Find the smallest sum achievable by selecting one element from each row of a 2D matrix, following certain constraints.

  • Iterate through each row and calculate the minimum sum by selecting elements that do not violate the constraints.

  • Keep track of the minimum sum achieved so far.

  • Avoid selecting elements directly below previously selected elements.

  • Example: For input ARR = [[1, 2, 3], [4, 8, 6], [1, 5, 3]], the optimal...

View all Software Developer Intern interview questions
A Software Developer Intern was asked
Q. 

Number Pattern Generation

Ninja enjoys arranging numbers and wishes to organize them into N rows. The first row should have 1 number, the second row 2 numbers, the third row 3 numbers, and so forth, contin...

Ans. 

Generate number pattern in N rows with ascending order and restarting at 9.

  • Iterate through each row from 1 to N.

  • In each row, print numbers in ascending order starting from 1 and restarting at 9.

  • Handle the wrapping around from 9 to 1 when reaching 9 in the sequence.

View all Software Developer Intern interview questions

Kellton Interview Experiences

52 interviews found

Intern Interview Questions & Answers

user image vajrala varsha1016

posted on 28 Aug 2024

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - One-on-one 

(4 Questions)

  • Q1. Python coding (basic)
  • Q2. Python coding basics on java
  • Q3. Tell about your self
  • Ans. 

    I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.

    • Graduated with a degree in Computer Science

    • Skilled in coding and problem-solving

    • Passionate about technology and innovation

  • Answered by AI
  • Q4. About my google apprenticeship

Senior Consultant Interview Questions & Answers

user image SAI GANESH ARISETTY

posted on 8 May 2024

Interview experience
2
Poor
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via Referral and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - One-on-one 

(3 Questions)

  • Q1. Say about the job description that what you understood
  • Q2. Why do you want to join as a consultant as you have good coding knowledge
  • Q3. Why do you want to become a consultant.. though you have good coding knowledge

Interview Preparation Tips

Topics to prepare for Kellton Senior Consultant interview:
  • Job description
Interview preparation tips for other job seekers - if they have no requirement they will expect a lot from you

Senior Engineer Interview Questions & Answers

user image patel dinesh

posted on 21 Jul 2024

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Prcedure function join view
  • Q2. Bulk collect plsql table trigger
  • Ans. 

    Bulk collect in PL/SQL enhances performance by reducing context switches between SQL and PL/SQL engines.

    • Bulk collect allows fetching multiple rows in a single context switch.

    • Example: Using BULK COLLECT with SELECT INTO to load data into a PL/SQL collection.

    • Can be used with FORALL to perform bulk DML operations efficiently.

    • Example: FORALL i IN 1..my_array.COUNT INSERT INTO my_table VALUES my_array(i);

    • Triggers can utiliz...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - High risk job in bangalore 24×7
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Case Study 

Experienced based scenarios.

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. What is Sql joins, cte, Sp vs function, user defined types,
  • Ans. 

    SQL joins are used to combine rows from two or more tables based on a related column between them.

    • SQL joins are used to retrieve data from multiple tables based on a related column.

    • Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

    • CTE (Common Table Expression) is a temporary result set that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement.

    • Stored Procedures (SP) are pre...

  • Answered by AI
  • Q2. C# interfces, opps concepts, DI, asp page life cycle
  • Q3. Ado. Net & entity frework difference
  • Ans. 

    ADO.NET is a data access technology while Entity Framework is an ORM framework for data access in .NET applications.

    • ADO.NET is a set of classes used to interact with data sources like databases directly.

    • Entity Framework is an ORM framework that allows developers to work with data in terms of objects and classes.

    • ADO.NET requires writing SQL queries manually, while Entity Framework allows querying data using LINQ.

    • Entity ...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Kellton DOT NET Developer interview:
  • OOPS
  • C#
  • SQL

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
-

I applied via Recruitment Consulltant and was interviewed in Dec 2023. There were 3 interview rounds.

Round 1 - Technical 

(11 Questions)

  • Q1. How to manage memory management in Python?
  • Ans. 

    Memory management in Python involves automatic memory allocation and deallocation through garbage collection.

    • Python uses automatic memory management through garbage collection, so manual memory management is not required.

    • Use tools like memory_profiler to identify memory leaks and optimize memory usage.

    • Avoid creating unnecessary objects and use data structures efficiently to minimize memory usage.

  • Answered by AI
  • Q2. Difference between Async , Sync and multithread?
  • Ans. 

    Async is non-blocking, Sync is blocking, Multithread allows multiple threads to run concurrently.

    • Async allows the program to continue executing other tasks while waiting for a response, commonly used in web development with AJAX calls.

    • Sync blocks the program until a task is completed, commonly used in simple sequential programs.

    • Multithreading allows multiple threads to run concurrently, improving performance by utilizi...

  • Answered by AI
  • Q3. CI/CD pipeline deployment?
  • Ans. 

    CI/CD pipeline automates software deployment, ensuring faster delivery and higher quality through continuous integration and continuous delivery.

    • CI/CD stands for Continuous Integration and Continuous Deployment.

    • Continuous Integration involves automatically testing and merging code changes into a shared repository.

    • Continuous Deployment automates the release of code changes to production after passing tests.

    • Tools like Je...

  • Answered by AI
  • Q4. How to revert last commit?
  • Ans. 

    Use 'git revert' command to revert the last commit.

    • Use 'git log' to find the commit hash of the last commit

    • Run 'git revert ' to revert the last commit

    • Commit the revert changes with a new commit message

  • Answered by AI
  • Q5. Difference between select_related vs prefetch_related with example?
  • Ans. 

    select_related follows foreign key relationships and retrieves related objects in a single query, while prefetch_related retrieves related objects separately to avoid performance issues.

    • select_related is used for accessing related objects in a single query, reducing database hits

    • prefetch_related is used for accessing related objects separately to avoid performance issues

    • select_related is more efficient for one-to-one o...

  • Answered by AI
  • Q6. What is decorater write example?
  • Ans. 

    Decorator is a design pattern in software development that allows behavior to be added to individual objects, either statically or dynamically.

    • Decorators are used to modify the behavior of functions or classes without changing their source code.

    • In Python, decorators are implemented using the @ symbol followed by the decorator function name.

    • Example: @decorator_function def some_function(): # function implementation

    • ...

  • Answered by AI
  • Q7. How to optimise query?
  • Ans. 

    Optimizing query involves indexing, minimizing data retrieval, using proper joins, and avoiding unnecessary functions.

    • Use indexes on columns frequently used in WHERE clauses

    • Minimize data retrieval by selecting only necessary columns

    • Use proper joins (INNER JOIN, LEFT JOIN, etc.) instead of subqueries

    • Avoid unnecessary functions in WHERE clauses

  • Answered by AI
  • Q8. What is normalisation?
  • Ans. 

    Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

    • Normalization is used to eliminate redundant data and ensure data dependencies are logical.

    • It involves dividing a database into two or more tables and defining relationships between them.

    • Normalization helps in reducing data redundancy, improving data integrity, and making data maintenance easier.

    • There are diffe...

  • Answered by AI
  • Q9. How to increase performance?
  • Ans. 

    To increase performance, optimize code, use efficient algorithms, parallel processing, caching, and database indexing.

    • Optimize code by reducing unnecessary loops and improving data structures

    • Use efficient algorithms like binary search instead of linear search

    • Implement parallel processing to utilize multiple CPU cores

    • Utilize caching to store frequently accessed data for faster retrieval

    • Implement database indexing to spe...

  • Answered by AI
  • Q10. How to secure your API’s?
  • Ans. 

    Securing APIs involves using authentication, authorization, encryption, and monitoring.

    • Implement authentication mechanisms such as OAuth, JWT, or API keys to verify the identity of clients accessing the API.

    • Use authorization to control access to different parts of the API based on roles and permissions.

    • Encrypt data transmitted between clients and the API using HTTPS to prevent eavesdropping.

    • Implement rate limiting and ...

  • Answered by AI
  • Q11. How single design patterns work?
  • Ans. 

    Single design patterns work by providing a reusable solution to common problems in software development.

    • Design patterns help in organizing code and making it more maintainable.

    • They promote code reusability and flexibility.

    • Examples of single design patterns include Singleton, Factory, and Observer.

  • Answered by AI
Round 2 - Client Interview 

(1 Question)

  • Q1. Questions from your resume.
Round 3 - HR 

(1 Question)

  • Q1. Salary discussion and your tenure employments.

Skills evaluated in this interview

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

I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. D/f b/w regression and retesting?
  • Ans. 

    Regression testing is done to ensure that new code changes have not adversely affected existing functionality, while retesting is done to verify that a specific bug has been fixed.

    • Regression testing is performed after code changes to ensure that existing functionality still works as expected.

    • Retesting is performed to verify that a specific bug has been fixed.

    • Regression testing is broader in scope and covers multiple fu...

  • Answered by AI
  • Q2. D/f b/w Put and Patch method in API?
  • Ans. 

    Put method is used to create or update a resource, while Patch method is used to update a resource partially.

    • Put method is idempotent, meaning multiple identical requests will have the same effect as a single request.

    • Patch method is not necessarily idempotent, as multiple identical requests may have different effects.

    • Put method requires the client to send the entire resource representation in the request body.

    • Patch met...

  • Answered by AI

Skills evaluated in this interview

Lead Engineer Interview Questions & Answers

user image Anonymous

posted on 24 Jan 2025

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(1 Question)

  • Q1. Can you provide details about your previous projects?
  • Ans. 

    I have worked on various projects including developing a new software system for a manufacturing company and implementing a data analytics platform for a financial institution.

    • Developed a new software system for a manufacturing company to streamline production processes

    • Implemented a data analytics platform for a financial institution to improve decision-making

    • Led a team in designing and deploying a cloud-based solution...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I would never suggest someone to join Kellton because of its poor management and off-boarding.
They treat you like animals.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Nov 2023. 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 - Aptitude Test 

Aptitude test was easy and I was passed in one attempt

Round 3 - Technical 

(4 Questions)

  • Q1. Technical questions regarding the project done
  • Q2. Regarding agile and scrumprocess
  • Q3. Regarding rsume
  • Q4. Hr discussion ha done

Interview Preparation Tips

Interview preparation tips for other job seekers - Very good culture with good coordination
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Related to Your Work ex
  • Q2. Related to your profile

Top trending discussions

View All
Interview Tips & Stories
2w
toobluntforu
·
works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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Kellton Interview FAQs

How many rounds are there in Kellton interview?
Kellton interview process usually has 1-2 rounds. The most common rounds in the Kellton interview process are Technical, HR and One-on-one Round.
How to prepare for Kellton 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 Kellton. The most common topics and skills that interviewers at Kellton expect are Javascript, SQL, HTML, Python and JSON.
What are the top questions asked in Kellton interview?

Some of the top questions asked at the Kellton interview -

  1. What is Sql joins, cte, Sp vs function, user defined typ...read more
  2. How to manage memory management in Pyth...read more
  3. Difference between select_related vs prefetch_related with examp...read more
What are the most common questions asked in Kellton HR round?

The most common HR questions asked in Kellton interview are -

  1. What are your strengths and weakness...read more
  2. What are your salary expectatio...read more
  3. Why are you looking for a chan...read more
How long is the Kellton interview process?

The duration of Kellton interview process can vary, but typically it takes about less than 2 weeks to complete.

Tell us how to improve this page.

Overall Interview Experience Rating

3.7/5

based on 39 interview experiences

Difficulty level

Easy 27%
Moderate 64%
Hard 9%

Duration

Less than 2 weeks 86%
2-4 weeks 14%
View more

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Kellton Reviews and Ratings

based on 417 reviews

2.7/5

Rating in categories

2.7

Skill development

2.7

Work-life balance

2.6

Salary

2.6

Job security

2.6

Company culture

2.4

Promotions

2.6

Work satisfaction

Explore 417 Reviews and Ratings
Python Software Developer

Gurgaon / Gurugram

3-5 Yrs

Not Disclosed

Java Lead

Gurgaon / Gurugram,

Delhi/Ncr

7-10 Yrs

₹ 20-30 LPA

Full Stack Java Developer

Gurgaon / Gurugram

2-6 Yrs

Not Disclosed

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