Senior Flutter Developer · Wrocław, Poland

Patryk
Kwiecień

10+ years building cross-platform apps for iOS, Android, Web & Linux. Co-founder of aisay.co — an AI-powered AAC platform helping non-verbal children communicate. Expert in Clean Architecture, BLoC/Cubits & LLM integrations.

View work Get in touch
Available for new projects
Flutter Clean Architecture AI · LLM iOS · Android · Web aisay.co Wrocław, Poland
Patryk Kwiecień
// patryk.kwiecień
Scroll
Core competencies

Tech Stack

01 / Mobile
Flutter & Dart
FlutterDart iOSAndroid WebLinux Clean ArchBLoC / Cubits Riverpodgo_router GetIt / Injectablefreezed drift
02 / AI / ML
AI Integration
OpenAI · GeminiLLM streaming WhisperTFLite RAG pipelinesEmbeddings On-device inferencePrompt eng.
03 / Backend
Back-end & APIs
Node.jsExpress.js TypeScriptREST / GraphQL WebSocketsPostgreSQL JWT / OAuth2PHP
04 / DevOps
Cloud & DevOps
FirebaseAWS GCPDocker CI/CDGitHub Actions JenkinsSentry Crashlytics
Career timeline

Work Experience

Jun 2023 – Present
Sonel
Senior Flutter Developer
  • Leading mobile & desktop (Linux) app development in Flutter for industrial measurement equipment.
  • Defining system architecture, release pipeline and CI/CD strategy for cross-platform builds.
Apr 2025 – Apr 2026
omea.ai
Senior Flutter Developer
  • Architected cross-platform AI app (iOS/Android/Web) using Clean Architecture, flutter_bloc, GetIt/Injectable and go_router.
  • Integrated real-time LLM streaming, voice input and on-device inference into the mobile client.
  • Collaborated with backend team on API contracts and maintained CI/CD pipelines.
2025 – Present
ObywatelBielik
Senior Flutter Developer
Volunteering · ObywatelBielik
  • Leading mobile architecture for Poland's first open-source LLM project.
  • Designing Flutter SDK patterns for the contributor team.
Jun 2021 – May 2023
Credit Agricole
Senior Flutter Developer
  • Developed core banking features in Flutter for the CA mobile app.
  • Led performance refactoring across key user flows on Android and iOS.
Aug 2019 – Jun 2021
Deviniti.com
Mobile / Front-End Developer
  • Built mobile and web apps in Flutter, Angular and Java.
  • Maintained CI/CD via Jenkins, Docker and Vagrant; administered Linux servers.
Selected work

Featured Projects

01 / Flagship
aisay.co
aisay.co ↗

Co-founder & lead developer of an AI-powered AAC platform helping non-verbal children communicate. Live on iOS & Android. Built Flutter & Node.js/Express cross-platform app with a real-time AI voice engine, context-aware responses, JWT auth and multimedia API. Sole developer managing full product lifecycle — architecture, TestFlight, App Store, CI/CD and scaling.

FlutterNode.js PostgreSQLAI Voice iOS & AndroidJWT Auth
02 / Platform
aacstandard.com
aacstandard.com ↗

Open AAC symbol standard — an open-source initiative generating ~15,000 AAC symbols with AI. Includes a full TypeScript MCP server integration, symbol design specification comparing PCS and Blissymbolics systems, and a tiered pricing API built for speech therapists and special education institutions across Poland.

TypeScriptMCP Server AI GenerationSymbol Design Node.jsREST API
Let's build something

Get in touch

Open to senior Flutter roles, AI integration projects, and co-founder opportunities. Based in Wrocław, available remotely.

kwiecienpatryk@gmail.com LinkedIn kwiecien.dev