Kamil Dobrzyński

Built the entire product as sole engineer, including React Native/Expo app, two web apps, and Node.js API on Fastify/AWS Lambda with Terraform. Shipped to App Store and Google Play, and delivered B2B partner panel used by 10+ funeral homes.

Owned the Expo/React Native app, Firestore/Cloud Functions, and a Next.js admin panel. Audited and remediated codebase, achieving 100% crash-free in Crashlytics and reaching #1 in App Store Entertainment category in Poland.

Led mobile development and AI-native initiatives, overseeing React Native and Expo projects, and delivering production-grade applications.

Led hands-on delivery of a React Native/Expo app from greenfield MVP to store release using EAS, Detox, and unit tests. Joined pre-sales and estimated scope, cost, and delivery risk.

Led the native-to-React Native CLI rewrite of Monster's iOS and Android apps (11M+ combined downloads), mapping legacy screens to shared flows at feature parity. Consolidated two native release trains into one Fastlane pipeline.

Built the full learning path for the DGE learning app, including sessions, articles, offline cache, progress, assessments, and shareable certificates. Integrated SSO with Keychain-backed sessions and refactored a live application with legacy JavaScript.

Joined a 12-person payments squad and shipped production payment features for Chase UK in React Native. Integrated GraphQL APIs for payment data and closed gaps in automated test coverage with Appium, Jest, and Detox.

Led a 4-person team from greenfield to App Store and Google Play, including Swift and Kotlin modules. Set the architecture using React Navigation Native Stack, Expo Modules, React Query, Valtio, Formik/Yup, i18next, Sentry, and Jest/Detox.

Led mobile development projects, including pre-sales, architecture, and team leadership, delivering React Native apps to production.

Shipped production features on iOS and Android, introduced TypeScript into the React Native codebase, and built native navigation with Mapbox and OSRM in Swift, Objective-C, and Kotlin. Delivered passenger web booking and operator workflows in Next.js.

Designed and delivered a 2-week React Native training program covering React vs React Native, the bridge, native modules, push notifications, app signing, and store releases, with live coding from an empty project to a working app.

Worked as a Senior React Native Developer on client projects, delivering mobile applications.

Joined Entia after the MVP as the only mobile developer on the at-home hemoglobin app. Shipped accessibility for older and disabled users, production fixes, and a corrected Bluetooth IoT connection and device configuration.

Moved existing Swift screens onto SwiftUI and Combine, polished production screens, fixed bugs, built an internal debug panel, and developed a brownfield proof of concept integrating React Native components.

Designed architecture and implemented subscription and payment flows on two React Native apps. Connected salon subscriptions across web panel and in-app payments, and kept apps in sync with web platform through GraphQL and Apollo Client.

Embedded React Native inside 13 native country apps, built a 24/7 real-time chat as a React Native module, and migrated users to the chat-enabled build. Worked in native hosts and JavaScript, fixed native bugs, and improved Android Gradle setup.

Built the React Native CLI app end to end, including map of cities with events, offers, news, offline sync, chat with Rocket.Chat SDK, QR codes, and an AR game.

Completed iOS Development Training in March 2021.

Bachelor's Degree in Computer Science from Nicolaus Copernicus University in Torun, completed in 2020.