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raphael_athos

Raphael Athos P

@raphael_athos

AI Engineer , Web Apps , Chatbots , DApp Development , Web3 , Smart Contracts

Cyprus
English, Greek
About me
🚀 Full-Stack AI, Web & Web3 Developer Full-stack developer with a degree from the Cyprus University of Technology (React.js, Nest.js) and a completed Master’s in Artificial Intelligence from the University of Cyprus. đŸ’» I build scalable web apps, AI systems, and Web3 solutions including DApps, blockchain platforms, crypto wallet integrations, and DeFi protocols. Experienced in RAG chatbots, LLM integrations, and modern NLP. 🌐 Focused on delivering clean, scalable, production-ready solutions across AI and blockchain. 🌟 Let’s connect and build impactful products.... Read more

Skills

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raphael_athos
Raphael Athos P
Offline ‱ 
Average response time: 1 hour

See my services

Decentralized Applications (dApps)
I will build web3 dapp , smart contracts, defi , platform
From$5 / projectMore details
AI Websites & Software
I will build custom ai chatbot for your company or service
From$5 / projectMore details

Portfolio

Work experience

Freelance_Web Designer

Freelance Web Designer

Freelance ‱ 1 yr 5 mos

Web3 Developer – Smart Contracts & Blockchain

Oct 2025 - Mar 2026 ‱ 5 mos

Designed and deployed production‑ready Move smart contracts on Sui blockchain: a multi‑level matrix system (X3/X6/X8 up to 16 levels) with mining ROI (2% daily, 200% cap) and a native SSUI token featuring multisig governance, 48h timelocks, and exchange limits. Implemented iterative reinvestment cascades, leaderboards, and secure admin controls.

AI Engineer – Custom RAG Chatbots

Feb 2024 - Jul 2024 ‱ 5 mos

Built a retrieval‑augmented generation (RAG) chatbot for a legal tech startup that ingests 10k+ documents and answers queries with cited sources. Used LangChain, Pinecone vector DB, and GPT‑4 – reduced legal research time by 60%. Deployed as full‑stack web app (Next.js + FastAPI) with real‑time streaming responses.

Full‑Stack Software Developer

Dec 2021 - Jul 2022 ‱ 7 mos

Developed responsive web dashboards and admin panels for clients in e‑commerce and finance. Specialized in React/Next.js frontends with Node.js backends. Integrated REST APIs, real‑time data visualization, and user authentication. Delivered 15+ projects with 100% client satisfaction and on‑time delivery.