
Web · 2026
3D Portfolio
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A walkable 3D version of this portfolio: explore floating islands in first person and inspect projects at each stop. React Three Fiber with Rapier physics; runs on desktop and mobile, ~5 MB first load.

Computer Science student · Vizja University, Warsaw
Machine learning & data science
I build machine learning models on real datasets, measure them against a baseline before trusting them, and turn the useful ones into apps people can use.
Explore in 3DOpen to
ML & data roles · full-time or long-term internship
Machine learning and data projects, each with its method, result, and dataset.
Machine learning✦ Featured project
2026Machine learning
ROC-AUC 0.84 · PR-AUC 0.66
Customer churn prediction for a telecom company, with a leakage-safe pipeline, stratified 5-fold CV, and a cost-aware decision threshold.
Other projects
Bachelor's in Computer Science, specialty: Artificial Intelligence and Data Science
Vizja University · Warsaw · Full-time, first-cycle (BA) studies
Relevant coursework
Certifications
I'm a Computer Science student at Vizja University in Warsaw, specializing in AI and data science.
Most of my projects are applied machine learning on tabular and text data, where the evaluation setup (leakage, class imbalance, the right metric, the decision threshold) matters as much as the model.
This semester I am taking Deep Learning and Handling Large Data Sets. I also build for the web, which helps when a model needs an interface.
Oct 2026 · 6 min read
Tuned XGBoost tied with plain logistic regression. One leak-free feature moved my score; a leaky version of it nearly fooled me.
May 2026 · 5 min read
A student's honest walkthrough of building a churn prediction model from scratch — comparing Logistic Regression, Random Forest, and Gradient Boosting.
May 2026 · 6 min read
A data-driven examination of inflation trends across several decades, analyzing rising costs in food and energy sectors.
I also build for the web, since a model is only useful once people can interact with it. These two I built for this portfolio. I also take on freelance web projects.

Web · 2026
Play in browser
A walkable 3D version of this portfolio: explore floating islands in first person and inspect projects at each stop. React Three Fiber with Rapier physics; runs on desktop and mobile, ~5 MB first load.

Web · 2026
Live site
The site you are looking at. React 19, TypeScript, and Tailwind CSS v4, with two languages (/en, /tr), static HTML generated at build time, light/dark themes, and a spam-protected contact form.
Get in touch.
Email is the fastest way to reach me. You can also find me on LinkedIn and GitHub.