LinkMed is a medication-safety platform that works like a spell-checker for drugs: it checks medications, food, supplements and alcohol against a person's health data and flags dangerous combinations. It is used by pharmacy students at the Medical University of Warsaw. As team lead of four, I designed the architecture, built the interaction engine, the 25,000-drug import and the review flow, and set up CI/CD and Azure deployment.

NABU is the website of the Independent Association of Banks of Ukraine. The design was planned and fully implemented, giving the site a new look, so it now stands out better against competitors and offers a more pleasant experience for staff and visitors. The admin panel gained better implemented features that speed up content management, so admins have a more pleasant experience too. As the client's single contact, I led the project from requirements to delivery, reaching an average PageSpeed score of 98.

HubMI.pl is a search engine that matches a resident's own words with proven social-innovation solutions from the ROPS Kraków library. Residents, NGOs and municipalities describe a problem and get up to four explained matches. In a 24-hour hackathon with one teammate, I built the search: two local neural models in .NET, pgvector in PostgreSQL, 89% accuracy and zero AI cost per query.

a website that brings cocktail recipes together in one place. It has a full catalog of cocktails and a separate database of ingredients, from spirits and liqueurs to mixers and garnishes. You can browse or search the catalog, open a cocktail to see its recipe and exact ingredients, and then make it yourself. Each ingredient has its own page too, with its type, strength and description.

Visitors can create an account and log in. Administrators have a separate panel where they add, edit and remove cocktails and ingredients.

I built it as a university project to show my programming skills, and completed it successfully. It's a complete, working website from start to finish.

A university project built to show programming skills, completed successfully. The store covers the full shopping flow: browsing products by category, saving favourites to a wishlist, adding items to a cart and placing orders, with an admin panel for managing the catalogue.

The recommendation system is what makes this project different. Inspired by how platforms like TikTok personalise content, every user gets an interest profile that changes with each action: viewing, saving, buying or removing a product. A k-nearest neighbours algorithm then uses Euclidean distance to measure how close each product is to that profile, and the nearest matches are recommended. The more someone shops, the more personal the store becomes.

This was my first client project: a complete online store for a friend's sports equipment business. I did all of it myself. I designed the look and layout of every page, built the full front end, and set it up on WordPress with WooCommerce so the owner could manage products and take orders.

The site covers the whole shopping journey: a home page, product categories, product pages, a cart, and delivery, store location, search and policy pages. I built it all by hand in 2021. It showed I could take a real business from a blank page to a working online shop.