I focus on blockchain protocol security, primarily at the source-code and consensus level. My core stack is Rust and native systems, and I concentrate on ecosystems where that expertise applies directly: Solana (validator/consensus internals, on-chain programs, DeFi), non-EVM chains (Cosmos, NEAR, Polkadot/Substrate, Move), and zero-knowledge / privacy protocols (Aleo, snarkVM/Leo).