I'm a Frontend Developer specializing in Next.js, React, and TypeScript, based in Warsaw, Poland. I build full-stack applications end-to-end — from UI to database, deployment, and CI/CD.
EpiData.pl — interactive epidemiological dashboard for Poland
Aggregates infectious disease data from 5 public sources (NIZP-PZH, WHO GHO, Eurostat, ECDC, GUS BDL), covering 23 disease groups with historical data back to 1974. Built with Next.js (App Router) + TypeScript (strict) + Drizzle ORM + Neon Postgres. Includes a custom Python ETL pipeline (pdfplumber, psycopg2) parsing biweekly NIZP-PZH PDF reports — validated 70/70 across four report years, automated via scheduled GitHub Actions.
bynexo.pl — production marketing site I designed and built Custom contact form (Resend + Neon Postgres), full security hardening (CSP, HSTS, XSS protection, rate limiting), and SEO setup (Google Search Console, structured metadata).
- Languages — TypeScript · JavaScript · SQL · Python
- Frontend — React · Next.js (App Router) · Vue 3 · Redux Toolkit · Tailwind · SCSS
- Backend & Data — Node.js · Drizzle ORM · PostgreSQL · Neon · REST APIs · Resend
- DevOps — Vercel · GitHub Actions · Linux · Git
- AI-assisted dev — Claude Code (CLI) for daily iteration and debugging
🇵🇱 PL native · 🇬🇧 EN C1 — Open to Junior / Mid Frontend roles in Warsaw or remote