IBM·Software Engineer

IBM Software Engineer interview experience

No offer

Medium

Positive

KrakówPosted Oct 2025 · Candidate report, summarized by Dataford

My path started with a coding task and then moved into HR screening, followed by an on-site interview.

For the backend-focused interview, I got hit with a mix of language internals and fundamentals—questions about the Python GIL and multithreading in Python, and also practical details like what the keyword “with” is used for.

The Java portion was more conceptual than syntax-only: I was asked about exception types, when to use exceptions, and how to think about an abstract class versus an interface. They also asked about tooling and core engineering topics, including Git and SQL, plus the idea of SQL libraries in Python.

The tone felt like they wanted breadth across multiple layers, and even

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