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MihRazvan/README.md

Welcome to my Sandbox

Full Stack Blockchain Engineer | Multi-Chain Specialist | 15x Hackathon Winner

I transitioned from a 2017-era DeFi user to a blockchain engineer after losing my portfolio in the June 2022 Harmony Horizon Bridge hack. That event pushed me to study smart contract security, read postmortems, and learn how to build the systems that broke.

Since then, I have competed in and won 15+ global hackathons and transitioned into a full-time engineering role building infrastructure that has scaled to over 2,000,000 active users.

I leverage a heavily agent-assisted workflow. By orchestrating multiple LLMs to handle test generation, security verification, and boilerplate architecture, I am able to focus entirely on complex on-chain logic and system design. This allows me to ship robust, production-grade code at a highly accelerated pace.


Tech Stack

  • Languages: Solidity TypeScript JavaScript Move Rust Python
  • Web3 & Crypto: Ethers.js Viem/Wagmi AI Agents (ERC-8004) RPC Infrastructure
  • Frontend: Next.js React Tailwind CSS Three.js Framer Motion
  • Backend: NestJS Node.js PostgreSQL Redis
  • Infrastructure: Docker GitHub Actions Safe Multisig IPFS

Featured Engineering & Hackathon Wins

Autark (1st Place Privacy - ETH Rome 2025)

A DevSecOps framework solving the "Single Dev Compromise" problem for self-sovereign frontend deployments.

  • Immutable Releases: Combines Safe multisig governance, ENS NameWrapper versioning, and IPFS (Storacha) into an atomic, verifiable release flow.
  • CLI Automation: Built a robust Node.js/TypeScript CLI (npm install autark) to manage multi-party approvals before any UI code goes live.

Trust City Exchange (PL Genesis)

A live autonomous marketplace where specialized AI agents route, execute, and verify jobs using trust thresholds.

  • Observable Autonomous Work: Orchestrates a complex discover -> plan -> execute -> verify loop visualized through a live 3D React/Three.js client.
  • Verifiable Trust Layer: Integrates real ERC-8004 identity and reputation receipts on Sepolia, ensuring work routing is backed by on-chain state, not just availability.

Cloakline (2nd Place Infra & Digital Rights - PL Genesis)

A drop-in privacy RPC for Ethereum that reduces wallet surveillance risk with a single RPC switch.

  • Encrypted Logging: Utilizes Zama fhEVM to keep operational logging encrypted, pseudonymous, and strictly write-only, removing raw wallet addresses from the chain.
  • Seamless Integration: Acts as a sanitizing proxy layer between wallets and upstream providers without requiring users to change their transaction flows.

Bulwark (2nd Place DeFi - Scroll Open 2025)

An AI-driven, automated DeFi vault system optimizing yield strategies across lending and DEX protocols.

  • Intelligent Execution: Uses AI to analyze wallet holdings and execute smart contract batch transactions for optimal capital efficiency.
  • Risk Mitigation: Features real-time liquidation monitoring and automated rebalancing to protect user capital from market volatility.

Other Notable Hackathon Podiums

I build under pressure. My projects focus on solving fundamental Web3 friction.

  • Pipe IT!! — 1st Place (Token Metrics), ETH Bucharest 2025
  • Theseus Alpha — 1st Place (Spectral Track), Encode University
  • Tabula — 2nd Place, ETHGlobal Agentic Hackathon 2025
  • SHIELD SPACE — 2nd Place (Privacy Track), ETH Rome 2024
  • Nexon — 2nd Place (Demo Day), Lens Hackathon

Plus multiple wins and top placements at MIT Bitcoin Hackathon, ETH Bucharest 2024, Arbitrum Stylus Hackathon, ETH Sofia, Encode London, and others.


Professional Experience

Full Stack Blockchain Developer — Astrarizon (April 2025 – Present)

  • Mass-Scale Infrastructure: Architected and deployed white-label gamification and engagement portals (Next.js/NestJS/Postgres), scaling cumulative infrastructure to support over 2,000,000 active users.
  • Web3 Ticketing: Developed a web3 ticketing protocol that processed over 400,000 NFT tickets for major large-scale events.
  • Ecosystem Engineering: Managed on-chain task indexing, yield systems, and Token Generation Event (TGE) mints across EVM, Sui, MultiversX, and Solana.

Web3 Developer Intern — Skytrade (Nov 2024 – April 2025)

  • Engineered a Solana program using Rust and Anchor to enable fractionalization of compressed NFTs (cNFTs) into fungible SPL tokens.
  • Implemented secure PDA-based authority, vault state management, and full-token burn requirements for secure asset retrieval.

Connect with Me

LinkedIn Email

"Shipping is the only feature that matters."

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  1. SHIELDSPACE-ETHRome SHIELDSPACE-ETHRome Public

    TypeScript 1

  2. theseus_alpha theseus_alpha Public

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  3. agentic_hackathon agentic_hackathon Public

    Python 1

  4. Autark Autark Public

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