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Citicorp Machine Learning Engineer Interview Questions and Answers

Updated 12 Sep 2024

Citicorp Machine Learning Engineer Interview Experiences

1 interview found

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

I applied via Recruitment Consulltant and was interviewed in Mar 2024. There were 2 interview rounds.

Round 1 - Technical 

(4 Questions)

  • Q1. Difference between BERT and GPT
  • Ans. 

    BERT is bidirectional, GPT is unidirectional. BERT uses transformer encoder, GPT uses transformer decoder.

    • BERT is bidirectional, meaning it can look at both left and right context in a sentence. GPT is unidirectional, it can only look at the left context.

    • BERT uses transformer encoder architecture, while GPT uses transformer decoder architecture.

    • BERT is pretrained on masked language model and next sentence prediction ta...

  • Answered by AI
  • Q2. Explain the attention mechanism
  • Ans. 

    Attention mechanism allows models to focus on specific parts of input sequence when making predictions.

    • Attention mechanism helps models to weigh the importance of different parts of the input sequence.

    • It is commonly used in sequence-to-sequence models like machine translation.

    • Examples include Bahdanau Attention and Transformer models.

  • Answered by AI
  • Q3. Bias and variance trade off
  • Q4. How to deal if the distribution of a variable is skewed
  • Ans. 

    To deal with skewed distribution of a variable, transformations like log, square root, or box-cox can be applied.

    • Apply log transformation to reduce right skewness

    • Apply square root transformation to reduce left skewness

    • Apply box-cox transformation for a more generalized approach

    • Consider removing outliers before applying transformations

  • Answered by AI
Round 2 - Coding Test 

Python code to determine the least common sub word in a given list with strings

Skills evaluated in this interview

Interview questions from similar companies

I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. 1. Explain SCD Type 2 Implementation in Informatica
  • Ans. 

    SCD Type 2 is a technique used to track historical changes in data over time in a data warehouse.

    • SCD Type 2 maintains a separate row for each change in data, with a start and end date.

    • It requires a surrogate key to uniquely identify each row.

    • Informatica provides a built-in SCD Type 2 transformation to implement this technique.

    • Example: tracking changes in customer addresses over time.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Kindly focus on basic BI terminologies, common to trivial scenarios and introductory information on latest trending tools and technologies.

Skills evaluated in this interview

I applied via Campus Placement and was interviewed before Nov 2021. 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 

Moderate level aptitude with basics

Round 3 - Coding Test 

Moderate level data structure questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and what what u speak because that is most important

Interview Questionnaire 

8 Questions

  • Q1. Find a number which occurs odd number of times and all number occurs even number of times
  • Ans. 

    Find an odd occurring number among even occurring numbers.

    • Use XOR operation to cancel out even occurring numbers and get the odd occurring number.

    • Iterate through the array and XOR each element with the result variable.

    • The final result will be the odd occurring number.

  • Answered by AI
  • Q2. Some discussion about my minor project
  • Q3. Spiral order of binary tree and mattrix, print it
  • Ans. 

    Print the spiral order of a binary tree and matrix.

    • For binary tree, use level order traversal and alternate direction for each level.

    • For matrix, use four pointers to traverse in spiral order.

    • Example for binary tree: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9

    • Example for matrix: 1 2 3 4 -> 8 7 6 5 -> 9 10 11 12 -> 16 15 14 13

  • Answered by AI
  • Q4. Some question about os,dbms
  • Q5. Find pair which have a given sum in a given array
  • Ans. 

    Finding pairs in an array with a given sum.

    • Iterate through the array and for each element, check if the difference between the given sum and the element exists in the array.

    • Use a hash table to store the elements of the array and their indices for faster lookup.

    • If there are multiple pairs with the same sum, return any one of them.

    • If no pair is found, return null or an empty array.

  • Answered by AI
  • Q6. Find total number of k element which have a given avg in a given array in minimum time complexity
  • Ans. 

    Find total number of k element with given avg in an array in minimum time complexity.

    • Use sliding window technique to traverse the array in O(n) time complexity.

    • Maintain a sum variable to keep track of the sum of elements in the window.

    • If the sum of elements in the window is equal to k times the given avg, increment the count.

    • Move the window by subtracting the first element and adding the next element in the array.

  • Answered by AI
  • Q7. Print all elements which in not boundary element in a given binary tree
  • Ans. 

    Printing non-boundary elements of a binary tree

    • Traverse the tree in any order (preorder, inorder, postorder)

    • Check if the current node is not a boundary node (not the first or last node in its level)

    • If it is not a boundary node, print its value

    • Recursively traverse its left and right subtrees

  • Answered by AI
  • Q8. Then some question about process synchronisation,error vs exception,and then 2-3 hr question

Interview Preparation Tips

Round: Test
Experience: practice codes on paper
Tips:

Round: Technical Interview
Experience: very good
Tips: please try to explain each and every question in detail

Round: Technical Interview
Experience: my hr round is not taken by them,and some of face 3rd round ,which is HR
Tips: please prepare all types of problem from geeksforgeeks

Skill Tips: please try to understand every problem from geeksforgeeks
Skills: ds
College Name: NIT Bhopal
Motivation: best work culture,and a lots of learning opportunity in this company,and in every 6 month there is a appraisal

Skills evaluated in this interview

Interview Preparation Tips

Round: Test
Experience: The written test was quite similar to the typical CAT pattern. It contained sections on Reading Comprehension, Data Interpretation and Mathematics.

Round: Technical + HR Interview
Experience: There were 2 interviewers in the first interview, one was a technical guy and the other was from HR. They asked me a few very simple puzzles, a few basic programming questions (swapping the value of two variables etc.), questions related to the development cycle of software products. The HR guy asked stuff like what do you want to achieve in life? Strengths, weaknesses etc.

Round: Case Study Interview
Experience: The third interview was the most important one (and I guess that was the deciding interview). The interviewer started with questions like why finance? Which companies are you sitting for? Then he gave me a case study:

Interview Questionnaire 

2 Questions

  • Q1. Oops, os, dbms, project
  • Q2. Why hsbc, why should I hire you.
  • Ans. 

    I have a strong background in software engineering and a passion for innovation, making me a valuable asset to HSBC.

    • I have a proven track record of successfully delivering high-quality software solutions in previous roles.

    • I am highly skilled in various programming languages and technologies, including Java, Python, and SQL.

    • I have experience working in agile development environments, allowing me to adapt quickly to chan...

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: 4 sections, 15 questions each. Sections on apti, english, programming, technical.
Tips: Time management, complete english and technical first
Duration: 1 hour
Total Questions: 60

Round: Group Discussion
Experience: We were asked which super hero would you like to be. Shared the information. Always present the positives and negatives and emphasize that despite of being negatives
Tips: Think everything through before speaking
Duration: 40 minutes

Round: Technical Interview
Experience: Prepare well, anything can be asked on the things written on your resume

Round: HR Interview
Experience: Sell yourself. Tell them why you would be the best candidate.
Tips: Tell your advantages of being a fresher that you would be comfortable in any technology

College Name: Acropolis institute of technology and research

I applied via Campus Placement and was interviewed before Sep 2020. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Few DSA questions, questions about my projects and my resume. Also, since I specialise in python, if I could create an API using it. HR questions, hobbies, leadership experience...

Interview Preparation Tips

Interview preparation tips for other job seekers - Understanding the culture of J.P. Morgan Chase played a big role in passing the interview. The coding questions were easy/medium level. The interviewers were very friendly.

I applied via LinkedIn and was interviewed before Aug 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. All microsoft technologies related

Interview Preparation Tips

Interview preparation tips for other job seekers - Nothing

I applied via Recruitment Consultant and was interviewed in Dec 2020. There was 1 interview round.

Interview Preparation Tips

Interview preparation tips for other job seekers - Please be 100% technical in java here they will not be any support u need to dig deep lot of complex modules which we cannot understand in depth

Interview Questionnaire 

1 Question

  • Q1. It was wonderful .They have asked about normal technical questions with how we faced real time.Both SAS and Mainfrmae.

Citicorp Interview FAQs

How many rounds are there in Citicorp Machine Learning Engineer interview?
Citicorp interview process usually has 2 rounds. The most common rounds in the Citicorp interview process are Technical and Coding Test.
What are the top questions asked in Citicorp Machine Learning Engineer interview?

Some of the top questions asked at the Citicorp Machine Learning Engineer interview -

  1. how to deal if the distribution of a variable is ske...read more
  2. Difference between BERT and ...read more
  3. Explain the attention mechan...read more

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Citicorp Machine Learning Engineer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
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