Tao Xu
Blockchain & software engineer · Tokyo, Japan
I'm Tao Xu (also known online as hewig / hewigovens) — a Tokyo-based software engineer and blockchain developer. I was a founding engineer at Trust Wallet, where I helped build crypto wallet infrastructure used by millions of people.
Today I design scalable blockchain infrastructure, cross-platform SDKs, and decentralized applications across Ethereum, Solana, Bitcoin, and other leading networks — and I build native macOS and iOS apps and Rust developer tooling on the side.
What I work on
- Crypto & wallet infrastructure — low-level wallet libraries, hardware-wallet protocols, and chain primitives in Rust and C++ (Wallet Core, hw-core, Solana Primitives).
- Rust tools & libraries — small, focused crates and developer tooling (reqwest-enum, Aya DevContainer).
- macOS & iOS apps — native utilities like App Detective, GhostTile, Miso, and Anytime.
Consulting
I also take on selective technical consulting — blockchain and crypto wallet engineering, system architecture, and security reviews. See the consulting page (日本語) for details.
