Available for new opportunities
George Retsilas
IT Engineering Student @ IHU
Turning technical requirements into solid software. I build for Web & Mobile with a focus on performance and maintainable code. No gimmicks, just engineering.
Technical Focus
I don't collect frameworks; I master the tools necessary to get the job done correctly with robust architecture.
4th
Year Student
5+
Major Projects
3rd
Hackathon Place
1
Published App
Portfolio
Selected Works
A curated collection of projects that showcase my technical depth and engineering approach.
Web
myAade
e-Invoicing Platform · AADE myDATA Integration
Full-stack e-invoicing app integrating with Greece's AADE myDATA tax system via the Bratnet API. Built as an open-source reference implementation — POS digital signatures, deferred payments, and credit notes.
React 19TypeScriptExpressZustand
Web
DocAtlas
Multi-Tenant AI Knowledge Base (B2B SaaS)
Engineered a plug-and-play chat widget with Multi-Tenant ID validation. Co-developed a production RAG platform using FastAPI and ChromaDB.
RAGFastAPIChromaDBPython
Mobile
PartyRoll
Party Games Mobile App
Co-developed a production-grade Flutter application featuring 6 distinct game modes. Built a custom content-creation engine and a data-sync protocol via GZip/Base64 encoding.
FlutterIsar DBDartGoogle Play
Live Demo
Private
Mobile
DevAtlas (Android)
Developer Roadmap Companion
Primary Developer for a native Android app using Kotlin Jetpack Compose. Architected a modular codebase and designed UI/UX in Figma.
KotlinJetpack ComposeFigmaAndroid
Web
Italika Kleio Karamanli
Production Multilingual Site
Engineered a production-ready tutoring site with Next.js & Supabase. Features a custom Admin Dashboard for dynamic content management and high SEO scores.
Next.jsSupabaseTailwindSEO
Live Demo
Private
Web
Currency Calculator
Currency Exchange Calculator
Implemented a Graph Traversal algorithm (DFS) for exchange rates using React, Node.js, and MongoDB. Features database-level caching for paths.
ReactNode.jsMongoDBDFS Algorithm
Mobile
Recipe Realm
Weekly Meal Planner
Cross-platform Flutter app with offline-first architecture using SQLite and Firebase synchronization.
FlutterSQLiteFirebaseDart
Contact
Let's Build
Something Great
Whether it's a mobile app, full-stack platform, or just a technical discussion — I'm always open to new challenges and collaborations.
georgerets@gmail.com
Location
Thessaloniki, Greece