Courses show effort. Exams show verification.
Anyone can click through video lessons — an exam passed under controlled conditions is a different kind of evidence. This page lists every IT certification exam I’ve passed, with dates and credentials. The list is short by design: I sit an exam only when the underlying knowledge is something I plan to use in real projects, not to pad a CV.
Why I bother with exams at all:
- They force depth. Preparing for an exam exposes every gap that a course lets you gloss over.
- They’re objective. A certificate of completion says „I watched this.” A passed exam says „I was tested on this.”
- They map a direction. The credentials below trace my path toward cloud and data engineering — the foundation of what I build today.
Below is the list in chronological order.
- AWS Certified Cloud Practitioner – 2022/09/23.
- DP-900: Microsoft Azure Data Fundamentals – 2023/08/22.
- AZ-900: Microsoft Azure Fundamentals – 2023/08/22.
- AI-900: Microsoft Azure AI Fundamentals – 2024/05/28.
Certifications in Context
These exams cover cloud fundamentals and data concepts. Their value is architectural: they give me a shared vocabulary with engineering teams and a structured view of how services fit together — security, networking, identity, and cost.
The Full Picture
- Completed courses & certificates — the structured learning,
- Passed IT exams (this page) — the independent validation,
- Completed hands-on labs — the applied practice.

Rafal Alitojc is a Data Engineer with a background in Mathematics and Computer Science, and over a decade of hands-on experience running independent web projects.
Currently, he is developing his practical skills in Python, SQL, dbt, Snowflake, Apache Airflow, and cloud technologies to build data pipelines, automate reporting, and turn messy business data into clean, usable systems.
