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Cloud Data Engineer II Interview Questions & Answers

MathCo user image ABHISHEK JHA

posted on 27 Nov 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Technical 

(8 Questions)

  • Q1. End to end architecture of current project
  • Q2. Basic spark code to read & write files
  • Q3. How to upsert data in table in spark
  • Q4. How do you handle sudden increase in data volume
  • Q5. Discussion on delta tables & ACID transactions
  • Q6. Explain autoloader and use case in Databricks
  • Q7. SQL question using window functions Lead, row number
  • Q8. Python question using hashmap & String
Round 2 - One-on-one 

(4 Questions)

  • Q1. Current project understanding end to end
  • Q2. Data pipeline design for a ride sharing company, ask bunch of follow up questions on the conclude a particular design.
  • Q3. Explain how you follow SDLC(Agile, waterfall) ?
  • Q4. Why are you looking for a change now
Round 3 - HR 

(4 Questions)

  • Q1. Basic introductions
  • Q2. What kind of work are you looking for? what do you know about the company
  • Q3. Willing to relocate?
  • Q4. Personal hobbies and aspirations

Interview Preparation Tips

Topics to prepare for MathCo Cloud Data Engineer II interview:
  • Spark
  • Python
  • SQL
  • System Design
  • Data Architecture
  • Streaming
Interview preparation tips for other job seekers - I had a brilliant experience interviewing at MathCo, Had awesome interviewers who push you thinking capabilities. Also given that I was at the end of my notice period, following rounds were scheduled quickly.
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
6-8 weeks
Result
No response

I applied via Referral and was interviewed in Jul 2024. There were 3 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Some questions related to APIs/Postman.
  • Q2. Some questions related to stakeholder management.
  • Q3. Some easy questions related to SQL
Round 2 - One-on-one 

(2 Questions)

  • Q1. What are some key traits that an implementation analyst must have?
  • Q2. Explain about your previous experience
Round 3 - One-on-one 

(3 Questions)

  • Q1. Have you ever mentored someone and have you ever led a team?
  • Q2. How many micro-services you've worked with in a single project?
  • Q3. How do you communicate among your team?

Interview Preparation Tips

Topics to prepare for Zeta Implementation Analyst interview:
  • API
  • SQL
  • Postman
  • Stakeholder Management
  • Business Management
Interview preparation tips for other job seekers - Do non stop licking of the manager and HR. Even though you're going to meet the same person in one of the interview if you meet him again be ready with some questions and don't answer a single question wrong because if you do no matter what they will dis qualify you based on a single answer and pray that the HR who's contacting you is not Anushree VN otherwise you will just keep sending her followup mails for 1 month and she will reply back with I tried to call you but your phone was unreachable.
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - One-on-one 

(2 Questions)

  • Q1. Find a number in array which is greater than left and right element
  • Ans. 

    Iterate through array and check if element is greater than its adjacent elements

    • Iterate through array and check if current element is greater than element at index-1 and index+1

    • Return the first element found that satisfies the condition

    • Handle edge cases where element is at the beginning or end of array

  • Answered by AI
  • Q2. Find the number in the string and return the sum of numbers
  • Ans. 

    Find and sum numbers in a string

    • Iterate through each character in the string

    • Check if the character is a digit

    • If digit, convert to integer and add to sum

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I solved all the DSA question with more optimised way , but interviewer was so immature to understand he joined two month back and only 2 yoe , he was not so skill full , I am pass out from tier-1 colg of India . Such a bad experiance . I was so confident that They are not going to hire me because my current CTC was too high , still they scheduled my interview. They pay very less , and I checked everyone going through interview process facing same what I faced . I will advice not go through the interview process . I have funny story , recruiter called me after seeing my resume , and he thought my name is BITS pilani . Which is my colg.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
No response
Round 1 - Aptitude Test 

Mintu Babu lives in a smaller house than her brother and in a larger house than her parents. Her children reside with her, and she has no other relatives. If Mintu Babu's relative U lives in a larger house than her relative S, then all the following may be true except: \n\n1) S is U's father \n\n2) S is U's mother \n\n3) U is younger than S \n\n4) S is younger than U

Round 2 - Technical 

(2 Questions)

  • Q1. 1. merge two linked list
  • Ans. 

    Merge two sorted linked lists without creating new nodes by rearranging existing nodes.

    • Traverse both linked lists simultaneously

    • Compare the values of nodes and rearrange pointers accordingly

    • Continue until one of the lists is fully traversed

  • Answered by AI
  • Q2. 2. reverse a linked list.
  • Ans. 

    Reverse a linked list by changing the direction of pointers.

    • Start with three pointers: current, previous, and next.

    • Iterate through the linked list, updating pointers to reverse the direction.

    • Update the head of the linked list to be the previous node once iteration is complete.

  • Answered by AI

Skills evaluated in this interview

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

I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

It included mcqs and multiple coding questions.

Round 2 - Technical 

(2 Questions)

  • Q1. Yours technical skillls related questions
  • Q2. Managerial questions

Interview Preparation Tips

Topics to prepare for Aptos Software Developer interview:
  • Full Stack
Interview preparation tips for other job seekers - It was an on campus opportunity. Technical and managerial round happened together. The process was very smooth. The interviewers were professional yet friendly and made everything very comfortable. You should know the basics at least.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Not Selected

I applied via Job Portal

Round 1 - HR 

(2 Questions)

  • Q1. Network concept basics
  • Q2. Routing protocol,ospf
Round 2 - Technical 

(1 Question)

  • Q1. Deep knowledge testing in networking domain
  • Ans. 

    Deep knowledge testing in networking domain involves understanding protocols, configurations, security measures, and troubleshooting techniques.

    • Understanding various networking protocols such as TCP/IP, DNS, DHCP, etc.

    • Knowledge of network configurations including routers, switches, firewalls, etc.

    • Understanding network security measures like VPNs, encryption, firewalls, etc.

    • Ability to troubleshoot network issues using t

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
-

I applied via Job Portal and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Can we perform data driven testing using postman
  • Ans. 

    Yes, Postman supports data driven testing through the use of variables and data files.

    • Postman allows users to define variables and use them in requests for data driven testing.

    • Data files such as CSV or JSON can be imported into Postman to drive test data.

    • Iterations can be set up in Postman to run tests with different data sets.

  • Answered by AI
  • Q2. Basic coding questions on integer array missing numbers

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Technical 

(3 Questions)

  • Q1. About yourself ?
  • Q2. Just asked questions on previous role
  • Q3. How many types of IOT devices are there
  • Ans. 

    There are three main types of IoT devices: consumer, commercial, and industrial.

    • Consumer IoT devices: Smart home devices like thermostats, lights, and security cameras.

    • Commercial IoT devices: Smart meters, asset tracking systems, and connected vending machines.

    • Industrial IoT devices: Sensors and actuators used in manufacturing, agriculture, and healthcare.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't waste time as the interviewer doesn't ask you questions related to JD.He asked me questions related to my previous work experience.Hr is good but interviewer is out of mind .I think interviewer wants to select their known candidates or relatives.Even if you give all answers they will simply reject you.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Generate a Dataframe
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

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

Round 1 - Aptitude Test 

Analytical and Problem-Solving Skills:

I was asked to analyze hypothetical business scenarios and propose solutions, demonstrating my ability to identify key issues, prioritize tasks, and recommend strategic actions.


Data Interpretation and Reporting:

Questions focused on my experience with data interpretation, report generation, and using analytical tools like SQL or Excel to derive insights from complex datasets.


Stakeholder Management and Communication:

There were discussions about my previous experiences in stakeholder management and how I effectively communicated with diverse teams to gather requirements and deliver solutions.


Process Improvement and Innovation:

Interviewers were interested in my approach to process improvement and innovation within a business context, including examples of projects where I had successfully implemented changes to optimize workflows or enhance efficiency.

Interview Preparation Tips

Interview preparation tips for other job seekers - I'd suggest you to prepare the case study on which you have worked. Make the section of who the client was, what was their requirements, their challenges, and how you overcame it, and what was the outcome, try to quantify your achievements. Also if you have screenshots of the those analytics, keep those handy to later share it for more credibility. Good luck!

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