Available for new projects

Hi, I'm Catalin Dinu

Web3 & Blockchain Developer specializing in smart contracts, DeFi protocols and cryptographic systems

Smart Contracts

Production-grade Solidity with security-first approach

Security

Audited code following best practices and standards

Full Stack

End-to-end Web3 applications from contracts to UI

Performance

Gas-optimized contracts and fast, responsive frontends

Featured Projects

A showcase of my Web3 and blockchain projects, from DeFi protocols to cryptographic implementations.

ERC20 Staking Vault

ERC-20 staking vault with streaming rewards, gasless staking via permit and UUPS upgradeable contracts.

SolidityFoundryOpenZeppelinEIP-2612+2

NFT Marketplace

Decentralized NFT marketplace with EIP-712 signed listings, royalty support and platform fees.

SolidityEIP-712ERC-2981Foundry+2
ABK

AMM DEX (Uniswap V2+)

Uniswap V2 implementation with extensions: TWAP oracle, configurable swap fees, flash loans and slippage protection.

SolidityFoundryCREATE2TWAP+2

Governance DAO

Decentralized governance system with proposal lifecycle, three-way voting, checkpoint-based delegation and timelock execution.

SolidityOpenZeppelinFoundryEIP-712+2

Multichain Web3 Dashboard

Multichain Web3 dashboard with RainbowKit, cross-chain balances and RPC failover on Base & Arbitrum.

TypeScriptNext.jsRainbowKitWagmi+2
2/3

MPC-TSS Signer (Rust)

Rust implementation of DKLs23 threshold ECDSA protocol for secure multi-party computation signing with BIP32 support.

RustTokioCryptographyWebSocket+2

About Me

I'm a passionate Web3 developer with deep expertise in building secure, scalable decentralized applications. My journey in blockchain began with a fascination for cryptographic systems and has evolved into a career focused on creating production-ready smart contracts and DeFi protocols.

I specialize in Solidity development with a security-first mindset, having worked on ERC20 vaults, NFT marketplaces, AMM implementations and governance systems. I'm also experienced in Rust for high-performance cryptographic applications like MPC threshold signatures.

When I'm not writing code, you'll find me researching the latest developments in zero-knowledge proofs, account abstraction and cross-chain interoperability.

Technical Skills

Smart Contracts

SolidityFoundryHardhatOpenZeppelinYul/Assembly

Blockchain

EthereumPolygonArbitrumOptimismBase

Backend

RustTypeScriptNode.jsPostgreSQLRedis

Frontend

ReactNext.jsWagmiViemTailwindCSS

DevOps

DockerGitHub ActionsVercelAWSMonitoring

Protocols

DeFiNFTsDAOsMPC/TSSLayer 2

Let's Connect

Interested in working together? I'm always open to discussing new projects, creative ideas or opportunities.

Location

Bucharest, Romania