Mark V.

I help Web3 teams launch DeFi protocols, RWA infrastructure, Crypto Wallets, and scalable rollup-based systems – fast, securely, and without over-engineering. No buzzwords. No spaghetti code. Just clean architecture, modular contracts, and deep blockchain thinking. 🔹 What I Build • RWA, Tokenization, Supply Chain systems • DeFi Protocols 1/ Lending, staking, vesting, governance 2/ Yield strategies, liquidity protocols, Curve-style AMMs 3/ Modular tokenomics across L1s and L2s 4/ Cross-chain DeFi with LayerZero, Axelar, IBC Tech: Solidity, Vyper, Rust, Hardhat, Foundry, zkSync, Arbitrum, Optimism, Base, Cosmos SDK, Substrate • NFT Infrastructure 1/ ERC721/1155 contracts, marketplaces, royalties 2/ Minting engines, auction logic, NFT staking 3/ NFT + DeFi hybrids (e.g. financial NFTs) Tech: ERC721A, OpenZeppelin, Seaport, IPFS, The Graph, Polygon, zkSync, Avalanche, Blur Protocol • Crypto Wallets 1/ Smart contract wallets (ERC-4337, account abstraction) 2/ Multichain wallet integrations (EVM + SOL + BTC + TRON + Lightning) 3/ MPC & social recovery flows 4/ Transaction batching, gasless UX, custom signing logic 5/ Multisig flows 6/ dApp interopability 7/ onramp/offramp & swapping & staking integrations Tech: ethers.js, viem, Wagmi, RainbowKit, Safe, WebAuthn, Passkeys, zkSync AA, Starknet AA, WalletConnect • Rollups & Modular Chains 1/ App-specific rollups with OP Stack or zkStack 2/ DA integration: Celestia, EigenLayer, Rollkit 3/ Custom sequencers, settlement bridges, messaging 4/ Token + gas abstraction, interoperability layers Tech: Starknet, zkSync Era, OP Stack, Substrate, Cosmos SDK, Polygon CDK, Cairo, Noir 🔧 How I Work • Clean, gas-optimized, audit-ready code • Fast iterations, deep collaboration • No overengineering, just outcomes. • Honest communication with honest feedback based on real product thinking. • AI-optimized review&development processes