athanasios papadopoulos

Athanasios PapadopoulosFull-Stack & Mobile Developer

MSc Cybersecurity · BSc Computer Science

I design and build complete applications — web platforms, React Native apps and desktop clients — and secure them from the database up. The two below are a marketplace running in production and a zero-knowledge storage system I designed from scratch.

Selected projects

01 — SecureStore

Research prototype

Zero-knowledge cloud storage — client-side encryption, deduplicated block versioning and a microservice backend.

  • Python
  • Go
  • Rust
  • FastAPI
  • AES-256-GCM
  • Argon2id
  • PostgreSQL
  • Redis
  • MinIO
  • gRPC
  • Docker
  • PyQt6

02 — Avgoro

Live in production

A live marketplace for local egg producers — Stripe Connect payouts and database-enforced authorisation, on web and React Native.

  • PostgreSQL
  • SQL
  • Supabase
  • Stripe Connect
  • TypeScript
  • JavaScript
  • React Native
  • Firebase
  • Deno
  • Netlify

About

I'm a computer scientist with a BSc from the University of Strathclyde, now completing an MSc in Cybersecurity at European University Cyprus. At Strathclyde I also worked as a demonstrator, helping second-year students build a terminal in C for the Computer Systems and Architecture course.

What I enjoy most is building applications people actually use, and owning every layer of them — schema, API, interface and deployment. Security is part of that design rather than a pass at the end: I put the rules where they can't be skipped, in the database, on the server and in the cryptography.

Both projects here were designed, built and secured by me alone.

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