Portfolio programistyczne

Frontend-focused product engineer with fullstack and AI integration experience.

Enterprise Frontend Engineering

Building scalable, production-ready SPAs with appropriate state management and performance focus.

Angular (enterprise scale)
RxJS / signal based state
NgRx / service based state management
Composition based architecture (interfaces + strategy pattern)
Performance optimization - bundle size reduction, DOM improvements, performant CSS
Refactoring - module decoupling, segregation of concerns, cohesion enhancement
Unit & integration testing (Jasmine, Jest)
E2E testing (Cypress)

Fullstack & APIs

Designing clean APIs and backend services that integrate seamlessly with frontend layers.

Node.js (Express, NestJS)
REST API design
Prisma ORM + PostgreSQL
Backend as a service - Firebase / Supabase
Auth flows & session handling

AI & Product Engineering

Integrating AI capabilities into real-world products — from API wiring to structured output pipelines.

OpenAI API integrations (GymCraft)
Prompt engineering for structured JSON outputs
PDF generation & export pipelines
Garmin Connect integration
Python microservice design

Check out recent blog articles

New project - architectural decisions

The story of how I chose the stack for new project

October 2025

architecture

angular

supabase

How to center a div in 2025

Get to know top common ways to center an elements in CSS

August 2025

css

→ See all articles

My side projects building which, I learned web development and discovered new technologies.
All of them are also available on my GitHub profile.

Shopping centre map

Interactive two-floor shopping centre map in vanilla JS and inline SVG, embedded into WordPress as one self-contained Shadow DOM block.

MC Booking

Internal PWA for managing job assignments and crew scheduling across large-scale live event productions.

→ See all projects

In addition to web applications, I also create website designs for companies.
Here are some of them.

AF Football Marketing Agency

WordPress-based, multilingual one page website for sport marketing agency built with Elementor. In this case I have created everything except content.