Hi! I'm Przemek and you can find out more about me on LinkedIn or GitHub.

Skills

I'm mainly Front-end Developer, but I'm not afraid of back-end using Node.js.
Here is a list of technologies I work with:

• Front-end
  • HTML, CSS, JavaScript
  • TypeScript
  • React, React Native
  • Testing
    • jest, Vitest, mocha, chai, sinon
    • Testing Library
    • Playwright, Cypress, TestCafe
• Back-end
  • Node.js
    • Hono, Express
    • Cloudflare Workers
  • Python (in progress)
  • Java, Kotlin – I know syntax and how to find informations in the codebase but I don't write in these languages
• Other
  • Git, GitHub
  • CI/CD (GitHub Actions)
  • Scrum
  • Jira, Trello, Linear
  • Grafana, Kibana
  • Astro, Vue.js 2

Projects

• Contact Channels at Allegro (Chat, Callback, Contact Form)
• Message Center at Allegro
• Tipply
• Label Magazine
• Empressia
• University hospital in Kraków
• Adam Mickiewicz University in Poznań
• Ahmad Tea

Career

• Aug 2021 – present: Front-end Software Engineer at Allegro
• Dec 2016 – Aug 2021: Front-end Developer at Empressia

Publications

In 2020 I wrote my first two articles.

1. 🇵🇱 Observing changes in elemnt size with the ResizeObserver API
2. 🇵🇱 Vue.js 3.0 – Features and Changes. What's new?

You can find rest of my texts here.

• Guides about very various topics (but mostly programming).