$ ship --ios --android --web

Wiktor
builds apps.

React Native and mobile engineer in Warsaw. 4 years of building apps end to end: native SwiftUI modules, React Native screens, and the Fastify and PostgreSQL APIs behind them.

  • ● available jan 2027
  • warsaw / remote
  • polish · english
  • 4 years experience

// selected work

4 projects

intra managements · 2024–2026

PCC Forms

Field operations and work order app for a construction company. About 200 people use it on iPhone, iPad, Android and web. I designed and built every part of it myself: SwiftUI components, an iPad split view, virtualized data tables, multi-screen forms and the API.

react-native · swiftui · tanstack · fastify · postgres

GigMission

My own product for warehouses, fleets and event crews, with live updates, chat, role-based sharing and Face ID sign-in.

expo · fastify · prisma · cloud-run

Campus systems

4 internal apps for GGWO staff in Baltimore, plus a campus UniFi network of 250+ devices.

react · express · mysql · websockets

C++ engine

My own 2D game engine, written in high school. I shipped 2 games with it on Google Play and the App Store.

c++ · vulkan · metal · directx · opengl

// stack

what I work with
mobile
react-native, expo, expo-router, reanimated, ota-updates
native ios
swiftui, expo-modules, ipad-split-view
backend
node, fastify, express, prisma, postgres, websockets
cloud
azure, google-cloud, unifi
graphics
c++, vulkan, metal, directx, opengl

© 2026 Wiktor Majchrzak · Warsaw, Poland