Java Developer

Hi, I'm Mariusz. I create backend for various applications and systems.

I will start with myself
in the beginning...

I am a backend developer using various technologies in my work. I gained experience by implementing a wide range of projects in which I was responsible for the entire development cycle, from making architectural decisions to production implementation and maintaining constant contact with stakeholders. I am able to acquire knowledge about new technologies quickly, manage the development of an IT project, and transfer the acquired competences to others.


Using the acquired skills, I implement various projects on the market.

Intersport Polska S.A.

Java Developer

School of Mathematics 2+2

Online math tutor

What technologies do I use?

Education & Certificates

I know how important competences supporting professional development are, which is why I devote a lot of time to acquiring new skills, which I confirm with various certificates.

C1 Advanced

Knowledge of English at an advanced level


Professional Scrum Master I – theory and practice of management in Scrum


The Way of the Modern Architect

The Way of a Modern Architect (DNA) – comprehensive training in the competence of a Solution Architect

ASBiRO University

Bachelor’s degree in management, specialization in enterprise development

Java Developer Bootcamp

Intensive programming course

EE.08. i EE.09.

Professional qualifications – IT technician

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