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Confluent Senior Software Engineer Interview Questions and Answers

Updated 1 Nov 2024

Confluent Senior Software Engineer Interview Experiences

3 interviews found

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

I applied via Company Website and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Coding Test 

1 hour duration. Sliding window problem. On hacker rank platform. Expected to write a working code and solve it optimally/scalable solution.

Round 2 - Technical 

(1 Question)

  • Q1. Again a coding test. LLD + hash map. 1 hour on hacker rank.
Interview experience
3
Average
Difficulty level
Hard
Process Duration
-
Result
Not Selected

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

Round 1 - Coding Test 

It was a 1 hour Technical screening round, coding question in java (you cna choose your own language). They asked a difficult version of regex matching question (Leetcode medium-hard).

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Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Time Window Map

Interview questions from similar companies

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

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

Round 1 - Technical 

(1 Question)

  • Q1. Gave question on react due to issue with IDE they provided unable to provide solution
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Coding Test 

Codility coding rounds , where code execution is mandatory and system design qiestions

Round 2 - Technical 

(1 Question)

  • Q1. Again execute code and technical questions
Round 3 - Technical 

(1 Question)

  • Q1. One more coding test and tech questions
Round 4 - System Design 

(2 Questions)

  • Q1. Design patterns
  • Q2. Design Patterns , scenario based
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Job Portal and was interviewed in Mar 2023. There were 2 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 Resume tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Word formation Algorithm question
  • Q2. Architecture of project.
  • Ans. 

    The architecture of the project is based on microservices with a containerized approach using Docker and Kubernetes.

    • Utilizes microservices architecture for scalability and flexibility

    • Containerized approach using Docker for easy deployment and management

    • Orchestrated with Kubernetes for automated scaling and monitoring

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep your introduction short because you might loose coding time for problem. They will end interview at sharp time. Unprofessional, and does not share the feedback.

I applied via Job Fair and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Coding Test 

4 questions in 1 hour 30 minutes

Round 2 - Technical 

(1 Question)

  • Q1. Subset sum - in leetcode
  • Ans. 

    Subset sum problem is a classic algorithmic problem in computer science.

    • The problem asks to find if there is a subset of the given array that sums up to a given target value.

    • It can be solved using dynamic programming or backtracking.

    • The time complexity of the dynamic programming solution is O(n*target), where n is the size of the array.

    • The problem can be further optimized using memoization or by using a boolean array t

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well on Data Structures and Algorithms for codesignal test

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Behavioral 

(1 Question)

  • Q1. What would you use to build a web app?
  • Ans. 

    To build a web app, I would use a combination of front-end technologies like HTML, CSS, and JavaScript, along with back-end technologies like Node.js, Express, and MongoDB.

    • Front-end technologies: HTML, CSS, JavaScript

    • Back-end technologies: Node.js, Express, MongoDB

    • Frameworks: React, Angular, Vue.js

    • Database: MySQL, PostgreSQL, MongoDB

    • Version control: Git

    • Deployment: AWS, Heroku, Netlify

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Hiring manager seemed distracted.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Nov 2024. There were 5 interview rounds.

Round 1 - Coding Test 

Coding - 1 hr, Graph

Round 2 - Coding Test 

Coding - 1hr, Algo + Implementation, Bitwise, Prefix search, Intervals.

Round 3 - Coding Test 

Coding - 1 hr, Implementation, Testing.

Round 4 - Behavioral 

(2 Questions)

  • Q1. Details around projects.
  • Q2. Standard Behavioural Questions.
Round 5 - Coding Test 

Coding - 1hr, Systems Design with coding, Multithreading.

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on multithreading, rest of the things you'd already know if you're prepared for any standard coding interview.
The interview was not difficult as such in my opinion, I just messed up last round.

I was interviewed before Sep 2020.

Round 1 - Coding Test 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

4 coding questions on hackerrank.

  • Q1. 

    Dice Throws Problem Statement

    You are given D dice, each having F faces numbered from 1 to F. The task is to determine the number of possible ways to roll all the dice such that the sum of the face-up num...

  • Ans. 

    The task is to determine the number of possible ways to roll all the dice such that the sum of the face-up numbers equals the given 'target' sum.

    • Use dynamic programming to solve the problem efficiently.

    • Create a 2D array to store the number of ways to achieve each sum with the given number of dice.

    • Iterate through the dice and faces to calculate the number of ways to reach each sum.

    • Return the result modulo 10^9 + 7.

    • Optim...

  • Answered by AI
  • Q2. 

    Stack using Two Queues Problem Statement

    Develop a Stack Data Structure to store integer values using two Queues internally.

    Your stack implementation should provide these public functions:

    Explanation:

    ...
  • Ans. 

    Implement a stack using two queues to store integer values with specified functions.

    • Use two queues to simulate stack operations efficiently.

    • Maintain the top element in one of the queues for easy access.

    • Ensure proper handling of edge cases like empty stack.

    • Example: Push elements 5, 10, 15; Pop elements; Check top element.

    • Example: Check if stack is empty; Get stack size.

  • Answered by AI
  • Q3. 

    Maximum Subarray Sum Problem Statement

    Given an array 'ARR' of integers with length 'N', the task is to determine the sum of the subarray (including an empty subarray) that yields the maximum sum among al...

  • Ans. 

    Find the maximum sum of a subarray in an array of integers.

    • Iterate through the array and keep track of the maximum sum subarray ending at each index.

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

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

    • Example: For input [1, -2, 3, -1, 2], the maximum subarray sum is 4.

  • Answered by AI
Round 2 - Video Call 

Round duration - 60 minutes
Round difficulty - Medium

My 1st technical round began with a small introduction and a discussion on my projects. After that, my complete interview revolved around Object-oriented principles and 1 basic coding question. The interviewer asked all the pillars of Object-oriented along with use cases and where have I implemented them in my projects.

Round 3 - Video Call 

(1 Question)

Round duration - 45 minutes
Round difficulty - Easy

In my 2nd technical round, the interviewer began with the complete discussion of my projects. He asked me everything about them like which technologies I have used, why I have used them, what are the alternatives, what are the real-life applications of these projects. After this, He asked questions on Computer Networks, Operating system, Database Management system and at the end, some of the SQL queries. SQL queries were quite easy, I found one of the queries tricky and harder as compared to other i.e print nth largest salary of the employees. The interviewer also asked me why I was not able to code one of the questions in the coding round. I explained the complete approach of that question and he was quite satisfied. This technical round was of 1 hour long.

  • Q1. Print the nth largest salary from a given list of salaries.
  • Ans. 

    Find the nth largest salary from a list of salaries.

    • Sort the list of salaries in descending order.

    • Remove duplicates from the sorted list.

    • Return the salary at index n-1 from the sorted list.

  • Answered by AI
Round 4 - HR 

(1 Question)

Round duration - 35 minutes
Round difficulty - Easy

There were two panellists in this round and they began with a small introduction. One of them asked me about my capstone project which was based on object recognition task and deep learning. He just told me to explain deep learning in complete detail and how can it be used on my college campus. Then, He asked me what technologies are being used and how I trained my model as the model was quite heavy and computationally intensive. Then, they asked me how I cope up with my team members in the pandemic situation and how I managed to interact with them.

  • Q1. What are the basic applications of deep learning, and how can I implement it in my college?
  • Ans. 

    Deep learning has applications in image and speech recognition, natural language processing, autonomous vehicles, etc.

    • Image recognition - identifying objects in images, used in self-driving cars, medical imaging, etc.

    • Speech recognition - converting spoken language into text, used in virtual assistants like Siri, Alexa, etc.

    • Natural language processing - understanding and generating human language, used in chatbots, lang...

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI applied for the job as SDE - 1 in BangaloreEligibility criteriaAbove 8 CGPACloudera interview preparation:Topics to prepare for the interview - Object-oriented programming in C++, Data Structure and algorithms, Computer Networks, Operating Systems, Database Management SystemsTime required to prepare for the interview - 5 monthsInterview preparation tips for other job seekers

Tip 1 : Practice at least 600 questions from leetcode.
Tip 2 : Make sure you participate in every long challenge of CodeChef.
Tip 3 : Focus more on your projects.

Application resume tips for other job seekers

Tip 1 : Do not put false things on a resume.
Tip 2 : Have some projects on a resume.

Final outcome of the interviewSelected

Skills evaluated in this interview

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Confluent Interview FAQs

How many rounds are there in Confluent Senior Software Engineer interview?
Confluent interview process usually has 1-2 rounds. The most common rounds in the Confluent interview process are Coding Test, One-on-one Round and Technical.
How to prepare for Confluent Senior Software Engineer 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 Confluent. The most common topics and skills that interviewers at Confluent expect are Cloud, Computer science, Distribution System, Software Engineering and Operating Systems.
What are the top questions asked in Confluent Senior Software Engineer interview?

Some of the top questions asked at the Confluent Senior Software Engineer interview -

  1. Again a coding test. LLD + hash map. 1 hour on hacker ra...read more
  2. Time Window ...read more

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Confluent Senior Software Engineer Interview Process

based on 3 interviews

Interview experience

4
  
Good
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Confluent Senior Software Engineer Salary
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₹56 L/yr - ₹126 L/yr
423% more than the average Senior Software Engineer Salary in India
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