About me

I build software that holds up in production

I'm Tomasz Włodarczyk. I've been building digital products since 2016 — today, as a senior frontend engineer and team lead, I develop betPawa, an iGaming platform serving 10+ markets. Through Zevi I bring that same engineering and everyday AI work to smaller companies' projects.

Find me:LinkedInGitHub

2016

shipping commercial code since

10+

markets on the platform I build

Vue → React

frontend migration I led

Team Lead

I own code review and mentoring

I started in 2016, rewriting an insurance-agent application from AngularJS to React. Since then I've worked across industrial SaaS, my own mobile and desktop apps, and a marketplace with hundreds of providers — always closer to production code than to slides.

Today at betPawa (pawaTech) I own the frontend of a sports-betting and casino platform running across 10+ markets. I led the rewrite from Vue to React, tune performance under heavy load and build the real-time UI on top of WebSockets. As team lead I own code review, coding standards and mentoring.

In parallel I design and ship my own products end to end — with payments, a mobile app and automated releases. Claude and Claude Code are part of my daily workflow: from architecture and refactoring through tests to LLM integrations.

Zevi is how I bring that practice to smaller companies — I build fast, polished, outcome-focused products and teach how to use AI yourself. I work in Polish and English, transparently and to the point.

Experience

  1. 2024 – now

    betPawa (pawaTech)

    Senior Frontend Developer / Team Lead

    Frontend of a sports-betting and casino platform (Next.js, React, TypeScript) across 10+ markets. Vue-to-React migration, performance tuning, real-time UI and betPawa's own pawaBlox design system.

  2. 2024 – 2026

    Dietly.pl (Żabka Group)

    Frontend Developer — contract

    Poland's largest diet-catering marketplace (400+ providers). Customer-facing features, an RTK Query data-layer migration and a ~25% faster ordering flow.

  3. 2022 – 2024

    FreeYourMusic

    Fullstack Developer

    Cross-platform mobile (React Native) and desktop (Electron) apps to move playlists between 20+ services, Node.js/Express APIs and a Next.js analytics dashboard.

  4. 2021 – 2022

    Spyrosoft

    Frontend Developer

    A SaaS platform for managing water-network infrastructure. Reusable components in an Nx monorepo with Storybook and data-visualization screens (Highcharts, D3.js).

  5. 2016 – 2021

    Europa Ubezpieczenia

    Frontend Developer / Programmer Analyst

    Rebuilt an insurance-agent app from AngularJS to React, wrote PHP/Laravel APIs, real-time chat and push notifications. Mentored two junior developers.

What I work with

Frontend

  • React
  • Next.js
  • TypeScript
  • Vue
  • Redux Toolkit
  • RTK Query

Performance & real-time

  • Core Web Vitals
  • WebSockets
  • SSE
  • bundle & render optimization

Backend & data

  • Node.js
  • Express
  • PHP/Laravel
  • PostgreSQL
  • MongoDB
  • Redis
  • Prisma

AI

  • Claude / Claude Code
  • LLM integrations (Claude, OpenAI)

Quality & DevOps

  • Jest
  • React Testing Library
  • Playwright
  • Docker
  • CI/CD
  • Kubernetes

What I believe in

Outcome over hype

Business results matter, not buzzwords. I ship what actually helps.

Transparency

A clear scope, a clear price and progress you can see as it happens.

Partnership

I stay after launch — supporting, training and evolving the solution with you.

Let's talk about your project

A free 30-minute consultation. You'll leave with a concrete idea for your first automation — whether or not we work together.

Book a free consultation