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Principal Engineer Interview Experience - Dublin, Ireland

July 1, 2026
Negative ExperienceNo Offer

Process

Multiple rounds of interview

  • First one was Karat interview (3rd party screening) - This round was coding, design, and behaviour all together in 1 hour. Not deep enough and looks like 3rd party person just asking predefined questions and going fast to cover all questions
  • Next round was technical discussion - this is deep discussion about technology and framework
  • Another technical round - similar to previous one but focus on problem solving and design- in person final round technical discussion (why?)Worst part of hiring process is no feedback at all. When someone spend so much time in hiring process - atleast they deserve feedback to improve.

Questions

There will be a technical discussion based on your profile and work experience.

Expect some framework questions like how Kafka handles so many messages, and how a database handles multiregion replicas.

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Interview Statistics

The following metrics were computed from 1 interview experience for the Mastercard Principal Engineer role in Dublin, Ireland.

Success Rate

0%
Pass Rate

Mastercard's interview process for their Principal Engineer roles in Dublin, Ireland is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive0%
Neutral0%
Negative100%

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