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Lead Software Engineer Interview Experience - Dublin, Ireland

May 1, 2025
Negative ExperienceNo Offer

Process

Five to six interviews altogether for this role. Such a waste of time with old schoolers. First interview:- HR round

Second interview: All agile, non-technical boring questions, seems like an exam or viva after taking an Agile Scrum course. Such a waste of an hour.

Third interview: (SE Tech SME)

  1. Explain your current project.
  2. What are 12 factors?
  3. Mostly question related to eCommerce website questions with real-time use cases.
  4. Questions related to authentication and authorisation.
  5. What are improvements done for Garbage Collection in Java 8
  6. Spring bean-related question
  7. Availability and Kafka-related questions
  8. Java stream API. Question on REST API design practices.

Fourth interview: (SE Interview Manager)

  • Small coding test during interview.
  • Went through my CV and recent projects etc
  • Asked about product from an API and display perspectives.

Fifth interview: (Tech interview)

  • Coding test: Find median number if your data is placed on several different servers like server 1, server 2, server 3, server 4. How would you find the median then? What if the data is so huge and won't fit in your RAM? It's a tricky question and standard complex problem to be asked in an interview.
  • Followed by some system design interview questions.

Sixth interview: (SE Bar Raiser)

  • Another complex coding test to board search with given word, count. (Anagram problem in a 2D table)
  • Followed by some OOP questions, and system design questions again.
  • Bar Raiser interview is always non-technical and more of personality and behavioural round. But they end up with the technical test and system design. I guess they messed up there.

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Interview Statistics

The following metrics were computed from 3 interview experiences for the Mastercard Lead Software Engineer role in Dublin, Ireland.

Success Rate

33%
Pass Rate

Mastercard's interview process for their Lead Software Engineer roles in Dublin, Ireland is fairly selective, failing a large portion of engineers who go through it.

Experience Rating

Positive33%
Neutral0%
Negative67%

Candidates reported having very negative feelings for Mastercard's Lead Software Engineer interview process in Dublin, Ireland.