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rocketzki – blog by Michał Markieta

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JAVA · SOFTWARE ENGINEERING · DEVOPS

Launch ideas.
Ship software.

Notes about Java, software architecture, DevOps, testing and all the interesting things I discover while building software.

Latest posts

Things I’ve been learning, building and thinking about.

Code You’re Afraid to Touch? Characterization Tests in Legacy Code2026-09-07
What is the Big O notation? A little bit of theory.2025-10-14
How to modify a melody using Python? Part I2025-10-14
How can good Unit Tests save your Dev’s well-being?2025-10-14
Striking the Right Balance – a good PR Review2025-10-14

ABOUT

Hi, I’m Michał.

I’m a software engineer interested in Java, backend systems, architecture, DevOps and the everyday craft of building software.

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rocketzki – blog by Michał Markieta

written and coded.

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