Note: this portfolio moves in a spiral.

I build fast, elegant software close to the metal—compilers, WebAssembly runtimes, and the tools around them.

JairusTanakabuilds.

01 / FlagshipGo · WebAssembly

A pure-Go, no-cgo WebAssembly JIT built around fast compilation, native execution, and a capability-aware plugin system.

Creator & maintainer

Wago

02 / BenchmarksWebAssembly · Performance

WebAssembly runtimes, measured and explained. Compare real workloads, explore feature support, and follow performance over time.

Creator & maintainer

03 / MaintainerTypeScript · WebAssembly

A TypeScript-like language that compiles to highly optimized WebAssembly. I maintain it and help lead compiler, runtime, and standard library work.

Maintainer since 2026

04 / Open sourceSIMD · SWAR

Multi-GB/s JSON serialization for AssemblyScript, using carefully chosen SIMD and SWAR algorithms.

Performance without mystery

05 / WorkSecurity · Systems

Building elegant, performant software for a modern application security platform.

Software engineer

06 / More projectsMade in public

A growing systems toolkit

07 / NotesIdeas, explained

Benchmarks, low-level techniques, and documentation for the things I ship.

Write it down

Compilers, WebAssembly, performance, or an unusually hard systems problem—I’d like to hear about it.

You made it.