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Dunnhumby Senior Engineer Interview Questions and Answers

Updated 11 Dec 2024

Dunnhumby Senior Engineer Interview Experiences

2 interviews found

Senior Engineer Interview Questions & Answers

user image Shweta Saini

posted on 11 Dec 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

1. The online test includes questions related to spark and a coding questions.

Round 2 - Technical 

(2 Questions)

  • Q1. Questions related to sql , spark, data structures were asked
  • Q2. 1. Questions based on window functions (rank, dense_rank)
Round 3 - HR 

(1 Question)

  • Q1. Overall discussion of the projects that you have worked on.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Aug 2023. There were 3 interview rounds.

Round 1 - Coding Test 

1 coding test having a DP question and some spark based questions.

Round 2 - Technical 

(2 Questions)

  • Q1. Fibonacci using DP
  • Ans. 

    Fibonacci using Dynamic Programming

    • Use an array to store calculated Fibonacci numbers to avoid redundant calculations

    • Start with base cases of 0 and 1, then iterate to calculate subsequent Fibonacci numbers

    • Time complexity can be reduced from exponential to linear using DP

  • Answered by AI
  • Q2. SQL questions ( ranks and partition)
Round 3 - One-on-one 

(1 Question)

  • Q1. Design based questions

Skills evaluated in this interview

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Interview questions from similar companies

I applied via LinkedIn and was interviewed in May 2021. There were 4 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Questions on the data structure and algorithms
  • Q2. Questions on the database like MySQL and Cassandra

Interview Preparation Tips

Interview preparation tips for other job seekers - Interviewer is good and understands the response appropriately

I applied via Naukri.com and was interviewed before Dec 2021. There were 4 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 - One-on-one 

(1 Question)

  • Q1. Questions related to SAP BW and HANA
Round 3 - One-on-one 

(1 Question)

  • Q1. Questions related to SAP BW and HANA
Round 4 - HR 

(1 Question)

  • Q1. Reason for Job Change

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Confident and clear with concepts
Fractal offers good hike
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Job Portal and was interviewed before May 2023. There were 2 interview rounds.

Round 1 - Coding Test 

90 min coding test with 4-5 problems to solve

Round 2 - Technical 

(1 Question)

  • Q1. Technical rounds mostly goes around the project work ans some were based on the JD.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Java hash map and how it works
  • Ans. 

    Java hash map is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values based on keys.

    • HashMap in Java implements the Map interface and allows null keys and values.

    • It uses hashing to store and retrieve key-value pairs, providing O(1) time complexity for get() and put() operations.

    • Example: HashMap map = new HashMap<>(); map.put("key", 1); int value = map.get("key");

  • Answered by AI

Skills evaluated in this interview

Interview Questionnaire 

2 Questions

  • Q1. Why should the company choose you ?
  • Ans. 

    I have the necessary skills, experience, and passion to contribute to the company's growth and success.

    • I have a proven track record of achieving targets and delivering results.

    • I possess excellent communication and interpersonal skills, which enable me to work effectively with colleagues and clients.

    • I am a quick learner and can adapt to new technologies and processes easily.

    • I am passionate about my work and always striv...

  • Answered by AI
  • Q2. How are you suitable to the company?
  • Ans. 

    I have the necessary skills, experience, and passion to contribute to the company's growth and success.

    • I have relevant experience in the industry

    • I possess the required skills and knowledge for the job

    • I am a quick learner and can adapt to new situations easily

    • I am passionate about the company's mission and values

    • I am a team player and can work collaboratively with others

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Though the paper was easy you have to score very high marks to qualify for the next round.
Duration: 30 minutes
Total Questions: 25

Round: Group Discussion
Experience: The GD round consisted of current affair topics. Since topics like these are very popular and everybody likes to talk about them, it is important that you start the topic so as to have a good hold over the group. If not just try and give a direction to the group with valid points so as to become noticeable. Do conclude the discussion.

Round: Interview
Experience: The interview was basically resume based. They asked me about my projects in the domain of finance and were quite impressed by it. They wanted me to discuss all my academic and internship projects in detail. The interview lasted for 30 minutes approximately.They also inquired briefly about me. They also asked me questions about my technical projects though it didn't have anything to do with the profile offered. Their main aim was to know whether I performed well in the tasks assigned to me even if they did not interest me.
Tips: Try not to mention anything about MBA if any one of you is planning to go for it.

College Name: IIT ROORKEE

Analyst Interview Questions & Answers

C5i user image Anonymous

posted on 22 Jan 2015

Interview Questionnaire 

3 Questions

  • Q1. Telephonic Interview
  • Q2. Present scenario of Indian cricket team and using stochastic to eliminate the worst and preserve the best
  • Ans. 

    Using stochastic to analyze Indian cricket team's current scenario and eliminate worst while preserving best.

    • Stochastic analysis can help identify the strengths and weaknesses of individual players and the team as a whole

    • It can also help in predicting the outcome of future matches based on past performance

    • Eliminating the worst performers and preserving the best can help improve the team's overall performance

    • For example...

  • Answered by AI
  • Q3. General HR Questions

Interview Preparation Tips

Round: Test
Experience: It was purely a quant based paper. I feel a freshie can crack it better than any other, provided their fresh math skills out of iit preparation.

Round: Interview
Experience: General questions.

Round: Interview
Experience: It was handled in the telephonic interview and the topic is too good.

Round: Interview
Experience: The last round of interview was again a telephonic based, where in hardcore HR questions were tested for your convincing skills which will definitely put you on the winning side.

General Tips: Just case studies grilling over with your friends should give you enough confidence to crack any non core company.

Confidence and body language in the interview. It depends on your resume too&#44; but mostly on the time of the interview that will decide your fate in the selection process.
Skills: Confidence , Body language in interview
College Name: IIT MADRAS
Motivation: They were looking for the position of an analyst&#44; and looking at my profile, I had done some high funda statistical modeling, which I think was the reason i got placed in that company.

Interview Questionnaire 

23 Questions

  • Q1. Walk me through your resume
  • Ans. 

    I have experience in marketing and sales, with a focus on digital marketing and customer acquisition.

    • Worked as a marketing intern at XYZ company, where I helped develop and execute social media campaigns

    • Managed email marketing campaigns for ABC company, resulting in a 20% increase in open rates

    • Led a team of sales representatives at DEF company, achieving a 15% increase in revenue

    • Developed and implemented a customer acq...

  • Answered by AI
  • Q2. What did you learn in your conference at Harvard University?
  • Ans. 

    I learned about the latest trends in AI and machine learning.

    • Discussed the impact of AI on various industries

    • Explored the ethical implications of AI

    • Learned about new techniques in machine learning

    • Attended workshops on natural language processing and computer vision

  • Answered by AI
  • Q3. If you were travelling so much, how did you maintain a CGPA of 8?
  • Ans. 

    Maintained CGPA of 8 by managing time efficiently and prioritizing studies.

    • Managed time efficiently

    • Prioritized studies over leisure activities

    • Utilized travel time for studying

    • Maintained a study schedule

    • Sought help from professors and peers when needed

  • Answered by AI
  • Q4. Mumbai or Bangalore (2 job locations in the offer). I said Bangalore, she was surprised as I stay in Nagpur. Asked me why?
  • Q5. What is your weakness?
  • Ans. 

    I tend to overthink and get anxious about small details.

    • I have a tendency to overanalyze situations

    • I sometimes struggle with decision-making

    • I am working on improving my time management skills

    • For example, I may spend too much time perfecting a project and not enough time on other tasks

  • Answered by AI
  • Q6. Give me a situation where you handled a problem effectively?
  • Ans. 

    Handled a customer complaint about a delayed delivery

    • Listened to the customer's concerns and apologized for the inconvenience

    • Investigated the issue and found out that the delivery was delayed due to unforeseen circumstances

    • Offered a discount on the next purchase as a gesture of goodwill

    • Followed up with the customer to ensure their satisfaction

  • Answered by AI
  • Q7. Why do you not want to go in core Metallurgy (my Btech majors)?
  • Q8. Women in India do not get what they deserve. Do you agree?
  • Ans. 

    Disagree. Women in India have made significant progress in various fields.

    • Women in India have excelled in fields like politics, sports, entertainment, and education.

    • The government has implemented various schemes and policies to empower women.

    • However, there are still issues like gender-based violence and discrimination that need to be addressed.

    • Efforts are being made to increase women's participation in the workforce an

  • Answered by AI
  • Q9. Tell me about both
  • Ans. 

    The question is unclear. Please provide more context.

    • Please provide more information about what you are asking for.

    • Without additional context, it is difficult to provide a meaningful answer.

    • Can you please clarify the question?

    • I am unable to answer the question without more information.

  • Answered by AI
  • Q10. What are the evidences?
  • Ans. 

    The evidences refer to the proof or supporting facts that validate a claim or argument.

    • Evidences can be in the form of data, statistics, research studies, expert opinions, eyewitness accounts, etc.

    • For example, in a court case, evidences can include DNA samples, fingerprints, and witness testimonies.

    • In scientific research, evidences can include experimental data, peer-reviewed studies, and expert analysis.

    • In journalism,...

  • Answered by AI
  • Q11. Okay what are your hobbies?
  • Ans. 

    I enjoy reading, hiking, and playing board games.

    • Reading: I love getting lost in a good book, especially science fiction and fantasy.

    • Hiking: I enjoy exploring new trails and being out in nature.

    • Board games: I like playing strategy games with friends and family, such as Settlers of Catan and Ticket to Ride.

  • Answered by AI
  • Q12. What genre of books?
  • Ans. 

    I enjoy reading a variety of genres, including mystery, science fiction, and historical fiction.

    • Mystery

    • Science fiction

    • Historical fiction

  • Answered by AI
  • Q13. What was the last book you read? What do you think of it?
  • Ans. 

    The last book I read was 'The Alchemist' by Paulo Coelho. It's a beautiful story about following your dreams.

    • The book is a fictional story about a shepherd boy named Santiago who embarks on a journey to fulfill his personal legend

    • The author uses simple language and metaphors to convey deep philosophical ideas about life and purpose

    • The book has sold over 65 million copies worldwide and has been translated into 80 langua...

  • Answered by AI
  • Q14. What is one learning from it?
  • Ans. 

    One learning from what?

    • Please provide context or specify what 'it' refers to

    • Without context, it is impossible to provide a meaningful answer

  • Answered by AI
  • Q15. What is truth? Like the one you have been taught or the one you learn yourself like your parents teach you to not cut nails at night etc ot go to the temple?
  • Ans. 

    Truth is subjective and can be influenced by personal experiences and cultural beliefs.

    • Truth is not always objective or universal

    • It can be shaped by personal experiences and cultural beliefs

    • What is considered true in one culture may not be true in another

    • Truth can also change over time as new information is discovered

    • For example, the belief that the earth was flat was once considered true, but is now known to be false

  • Answered by AI
  • Q16. So why should we visit temples?
  • Ans. 

    Visiting temples can provide spiritual and cultural experiences, as well as a sense of community and peace.

    • Temples offer a space for prayer and meditation

    • They can provide a sense of community and belonging

    • Visiting temples can offer cultural and historical insights

    • Many temples have beautiful architecture and artwork

    • Temples can provide a peaceful and calming environment

    • Some people believe that visiting temples can bring

  • Answered by AI
  • Q17. Why fractal?
  • Ans. 

    Fractals offer a unique way to understand complex patterns and structures in nature and mathematics.

    • Fractals can be found in natural phenomena such as snowflakes, coastlines, and ferns.

    • They have practical applications in computer graphics, data compression, and cryptography.

    • Fractal geometry provides a new perspective on understanding the behavior of complex systems.

    • Fractals have been used to model the growth of tumors ...

  • Answered by AI
  • Q18. What was your internship in IIM A about?
  • Ans. 

    My internship at IIM A was focused on market research and analysis for a new product launch.

    • Conducted primary and secondary research to identify market trends and consumer preferences

    • Analyzed data using statistical tools and presented findings to senior management

    • Assisted in developing marketing strategies and creating promotional materials

    • Collaborated with cross-functional teams to ensure successful product launch

    • Gain...

  • Answered by AI
  • Q19. Okay. How many people attended StanChart Mumbai Marathon?
  • Ans. 

    The number of attendees at StanChart Mumbai Marathon is not available.

    • Data on the number of attendees is not available.

    • The organizers have not released any official figures.

    • It is unclear how many people participated in the marathon.

  • Answered by AI
  • Q20. The puzzle of 2 cans of 3Litre and 5 litre used to measure other values (very common one)
  • Q21. I have 5 other BTech metallurgy graduates, why should I hire you?
  • Ans. 

    I bring a unique combination of skills and experience to the table.

    • My experience in internships and projects sets me apart from my peers.

    • I have a strong understanding of the latest industry trends and technologies.

    • My ability to work well in a team and communicate effectively makes me a valuable asset.

    • I am passionate about metallurgy and am always eager to learn and improve.

    • My dedication and work ethic are unmatched.

  • Answered by AI
  • Q22. You mean they will disappoint my efforts?
  • Ans. 

    It depends on the situation and the people involved.

    • It's possible that they may not appreciate or recognize your efforts.

    • It's also possible that they may have different expectations or priorities.

    • Communication and understanding are key to avoiding disappointment.

    • Examples: a boss who doesn't acknowledge your hard work, a friend who doesn't show up to your event.

  • Answered by AI
  • Q23. Do not try to safe guard your friends (humorously)

Interview Preparation Tips

Round: Test
Experience: The test was of easy to moderate difficulty level. There was no negative marking hence choosing the questions to maximize score was the best way. It was a speed based test and a few questions in each section were put to break your speed in the form of calculation based questions or slightly difficult ones. Decent preparation for CAT etc is more than sufficient. Verbal was very easy, quants and reasoning were moderate. I always thought that quants was my weakness, but this test was easier than expected.
Tips: 1) Choose questions in each section wisely because there is no negative marking. Leave the ones you think are time consuming and fill it at the last.
2) Make sure you allot equal time to all sections or if you have one section as your strength do it first. There can be chances of sectional cut off, I am not sure
3) Maximize your score by keeping your speed maintained
4) A decent preparation for CAT is more than enough. Verbal has 1 or 2 RCs which are very easy.
Duration: 60 minutes
Total Questions: 60

Round: Technical Interview
Experience: The first round was pretty easy I thought because the interviewer was pretty relaxed and was just trying to get to know me. She asked questions about every point in my resume. I could feel that you are the one who drive your interview the way you want to from the first question.
Tips: 1) PLEASE be HONEST with your resume. They will ask you about each and every point. They asked about EVERY internship I did, every conference, everything. So be honest and well versed with what you mention in your resume.

2) Do not get laid back if the interviewer is a little relaxed. The ones who did in my time, did not get shortlisted for next round.

3) Be aware of your answers, you can drive your own interview.

Round: Puzzle Interview
Experience: Ans 1 - Case studies on sports leagues in India - Indian Badminton League, Hockey India League and Standard Chartered Mumbai Marathon
Ans 2 - Guessestimate question. Gave a reason for answer, it was not even close for the first time because I could not estimate population of Marine Drive (venue of marathon) near to real value but my algorithm was correct, hence he moved to next question.
Ans 4 - I will not disappont the efforts put in me, I am sincere and passionate about my work.
Ans 5 - No I do not mean that.
Ans 6 - I would act as an asset for the company who would help in building other assets by helping and working together with my peers in Fractal

Tips: 1) Make sure you keep explaining your method at each step, this way even if values are wrong, they are interested in method.

2) Dont panic, you can ask them to give you 2 3 minutes to think

3) Be honest. Have presence of mind, understand when he is not happy with your response

4) The interviewer was continuously roaming around the room trying to distract me. So be focussed.

Round: HR Interview
Experience: Ans 1 - Do you intend to ask about their rights from society or freedom from home?
Ans 2 - According to me the societal restrictions are forced, but the family restrictions might be justified because I asked my father and he gave evidences from Vedas which was logical.
Ans 3 - Told her the facts
Ans 4 - Travelling, meeting new people and reading books
Ans 5 - both fiction and non fiction. Named a few titles and authors
Ans 6 - My Experiments with Truth - MK Gandhi, Like most of my peers, I made a negative conclusion about MK Gandhi.
Ans 7 - That truth must always prevail but it doesnt define truth.
Ans 8 - Ma'am, what we are taught and what we grow up with is our paradigm. Truth is what we accept after observing everything. For example I was curious why we should visit the temple and I researched about it, read a few texts and forme dmy opinion this i smy truth so it can be subjective.
Ans 9 - Gave the reason
Ans 10 - I think Fractal works on the same principle as I do that there should be a balance between everything in life. My seniors at fractal have talked extremely well about the work life balance and as you would see my profile is also a balance between sports, extra curriculars and academics

Tips: 1) I was confident and aware about what I was saying.
2) I gave openings for her to ask the next question like define truth, why temples etc.
3) Be honest and tell them waht you think. This round is just to check if you fit in their work culture or not.

General Tips: 2 things are very important for fractal -
1 - stay calm
2 - be honest. they can see through it.

Read about Fractal properly, use it in your answers. HR round will have one question - Do ask at least one question
Skill Tips: Make sure your resume is one page long only and is COMPLETELY TRUE.
Skills: Ability To Cope Up With Stress, Guesstimate Skills, Ability To Deal Diplomatically, Ability To Convince, Hone
College Name: NIT Nagpur
Motivation: It was an analyst job and the company has a very good work life culture.
Funny Moments: When in 1st round I was asked any difficult situation you handled, I told about my visit to Japan and how I did a presentation there in Class 10, my interviewer then began to tell me about her visit to Japan and how good Japanese people are
Also in last round, we had a healthy long discussion about what is truth, why women are denied a few things etc/ All HR interviews were 10 minutes long with normal questions like hobbies and general stuff but mine went on for 40 minutes and I did not even mind it.

I was interviewed before May 2016.

Interview Questionnaire 

4 Questions

  • Q1. Tell us about yourself
  • Ans. 

    I am a dedicated and detail-oriented analyst with a strong background in data analysis and problem-solving.

    • I have a Bachelor's degree in Statistics and experience working with large datasets

    • Proficient in statistical software such as R and Python

    • Skilled in identifying trends and patterns to provide actionable insights

    • Strong communication skills to present findings to stakeholders

  • Answered by AI
  • Q2. Why did your CGPA decrease consistently after you 1st year?
  • Ans. 

    My CGPA decreased consistently after my 1st year due to various factors.

    • I faced challenges in adjusting to the new academic environment in my first year.

    • I had to balance my studies with extracurricular activities and part-time jobs.

    • I struggled with certain subjects or courses that were more challenging for me.

    • I may have experienced personal or health issues that affected my academic performance.

    • I learned from my mistak...

  • Answered by AI
  • Q3. What do you know about us?
  • Ans. 

    The company is a leading financial services firm specializing in investment analysis and research.

    • Specializes in investment analysis and research

    • Considered a leader in the financial services industry

    • Known for providing high-quality financial advice and recommendations

  • Answered by AI
  • Q4. You mentioned that you have interest in cricket. Can you name at least 3 cricketers from the 70s?
  • Ans. 

    Some cricketers from the 70s include Sunil Gavaskar, Dennis Lillee, and Clive Lloyd.

    • Sunil Gavaskar was a legendary Indian batsman known for his technique and consistency.

    • Dennis Lillee was a fearsome Australian fast bowler who dominated the cricketing world in the 70s.

    • Clive Lloyd was a West Indian cricketer who captained the team to two consecutive World Cup victories in 1975 and 1979.

  • Answered by AI

Interview Preparation Tips

Round: Test
Duration: 1 hour 30 minutes

Round: Group Discussion
Experience: Fortunately I had a general idea about this topic and had some ideas and examples in mind to support my case. Though, that wasn't the case with everyone else.
Tips: Read Quora answers and be aware of current affairs
Duration: 15 minutes

College Name: Manipal Institute Of Technology, Manipal

Dunnhumby Interview FAQs

How many rounds are there in Dunnhumby Senior Engineer interview?
Dunnhumby interview process usually has 3 rounds. The most common rounds in the Dunnhumby interview process are Coding Test, Technical and One-on-one Round.
How to prepare for Dunnhumby Senior 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 Dunnhumby. The most common topics and skills that interviewers at Dunnhumby expect are Digital Marketing, LMS, Agile Coaching, Google Analytics and GCP.
What are the top questions asked in Dunnhumby Senior Engineer interview?

Some of the top questions asked at the Dunnhumby Senior Engineer interview -

  1. Fibonacci using...read more
  2. Questions related to sql , spark, data structures were as...read more
  3. 1. Questions based on window functions (rank, dense_ra...read more

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Dunnhumby Senior Engineer Interview Process

based on 2 interviews

Interview experience

5
  
Excellent
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Dunnhumby Senior Engineer Salary
based on 68 salaries
₹10 L/yr - ₹34 L/yr
111% more than the average Senior Engineer Salary in India
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Dunnhumby Senior Engineer Reviews and Ratings

based on 3 reviews

3.4/5

Rating in categories

2.6

Skill development

4.2

Work-life balance

3.3

Salary

3.4

Job security

4.1

Company culture

1.8

Promotions

1.8

Work satisfaction

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