Semi-senior WebAssembly Engineer — Browser ML

About Hummingbirds AI

Hummingbirds AI builds privacy-first, frictionless authentication technologies that eliminate passwords and intrusive security workflows. Our flagship product, Guacamole, delivers continuous facial authentication with zero biometric data leaving the user's device.

We are now expanding Guacamole to the web by building a browser-native biometric SDK that runs entirely client-side using WebAssembly and modern browser ML runtimes.

This is a greenfield, technically challenging project with direct ownership over architecture, performance, and developer experience.

The Role

We are looking for a Semi-senior WebAssembly Engineer to lead the development of a browser-based continuous facial authentication SDK.

You will be responsible for bringing production-grade ML models into the browser, designing a clean JavaScript SDK, and ensuring real-time performance, security, and cross-browser compatibility.

This role sits at the ...