kiari

I build production DeFi protocols from scratch and deploy them to mainnet. At Portal to Bitcoin, I own 100% of the EVM smart contract codebase. I made the architectural decision to build an orderbook DEX instead of an AMM — designed the system, built it, and deployed 14 contracts to mainnet (5 on Ethereum, 9 on Portal chain). Zero exploits since launch. What I shipped: • 14 contracts deployed to mainnet with zero critical issues at TGE • Orderbook DEX architecture with cross-chain atomic swaps (BTC ↔ EVM) • 70-80% gas reduction through architectural redesign • 14M+ atomic swaps processed on testnet, 400K peak daily transactions • Security audit: 5 findings, all resolved in 24 hours • 95%+ test coverage with fuzz and invariant testing Technical depth: Orderbook DEX design, HTLC atomic swaps, cross-chain bridges, MEV-resistant patterns, Uniswap v2/v3 mechanics, upgrade-safe contracts (UUPS/Diamond).