Sebastian Sala

Info

About

I’m Sebastian Sala, a software engineer based in Mexico. I work on the parts of a product that cannot be wrong: authentication, payments, and billing. By day I build payment systems for retail. On my own time I write open source identity libraries in Rust and Ruby, including RustAuth, a SAML 2.0 implementation, and a SCIM engine.

Work

Blinks Institute

Expanded the payment stack: card terminals, CoDi mobile payments, and online checkout.

2024 — Present

SCISA

Integrated Stripe across more billing paths and payment scenarios.

2023 — 2024

Work

RustAuth

Authentication that lives in your Rust backend. Sessions, passkeys, OAuth, SAML, and SSO as Cargo crates.

GitHub Documentation On DEV

OpenSAML

SAML 2.0 for Rust with no C dependencies. Service Provider and Identity Provider flows without libxml2 or OpenSSL.

GitHub Documentation

Scimera

A SCIM 2.0 protocol engine for Rust. Filters, PATCH, validation, and bulk planning with no framework attached.

GitHub

Better Auth Ruby

Better Auth for Ruby. A Rack-first core with adapters for Rails, Sinatra, Hanami, Grape, and Roda.

GitHub Documentation

OmniCaptcha

One server-side API for seven CAPTCHA providers. Fail-closed verification for Rust.

GitHub Documentation

BetterFetch

A typed HTTP client on reqwest. Routes, params, and retries checked at compile time.

GitHub Documentation

PyPix

A fast, modern browser for the Python Package Index.

GitHub

Blinks Institute

Payments for retail stores: card terminals, CoDi, and online checkout on one stack.

SCISA Billing

Stripe billing, automated invoicing, and critical flows that load about 25% faster.

Inspired by royjad.com