# Press Kit

Web developer, open-source maintainer and Remix contributor.

Everything an event, podcast or publication needs to introduce me, free to use as is. If you need something that isn’t here, write to me with the form at the end of this page.

## Quick facts

- **Name:** Sergio Xalambrí
- **Pronunciation:** SEHR-hyoh sah-lahm-BREE (the X sounds like an S)
- **Pronouns:** He/Him
- **Role:** Web Developer at Daffy
- **Based in:** Lima, Peru (PET, UTC−5)
- **From:** Argentina
- **Languages:** English, Spanish
- **Handle:** @sergiodxa

## Bios

Written in the third person. Pick the length your program or form asks for.

### One line

_Podcast show notes and social posts_

> Sergio Xalambrí is an Argentinian web developer at Daffy and the maintainer of Remix Auth and Remix Utils.

### Short

_Event apps and printed programs_

> Sergio Xalambrí is an Argentinian web developer with more than a decade of experience. He works at Daffy and maintains open-source libraries around React Router, Remix, and OAuth 2.0. He enjoys building full-stack applications, designing libraries, and exploring the Web Platform.

### Medium

_Conference websites and speaker pages_

> Sergio Xalambrí is an Argentinian web developer with more than a decade of experience, based in Lima, Peru. He works at Daffy, where he builds the web app that helps people give to the causes they care about. He maintains Remix Auth and Remix Utils, two of the most used libraries in the Remix and React Router ecosystem, contributes to Remix and React Router themselves, and publishes the @sdxc packages for building apps on the Web Platform. He writes articles and tutorials about web development at sergiodxa.com.

### Long

_Brochures and detailed profiles_

> Sergio Xalambrí is an Argentinian web developer with more than a decade of experience building for the web, now based in Lima, Peru. He works at Daffy, a donor-advised fund that helps people give to the causes they care about, where he builds the web app at the center of the product.
>
> He is best known in the Remix community for Remix Auth, the authentication library many Remix and React Router apps sign their users in with, and Remix Utils, a collection of utilities for routes, responses, and the server. He contributes to Remix and React Router, and maintains the @sdxc packages, a set of libraries for building full-stack apps on Web Platform APIs, documented at sdxc.dev.
>
> Sergio has spoken at Remix Conf Europe and Remix Jam, and on podcasts and meetups across Latin America, in English and Spanish. He has written hundreds of articles and tutorials at sergiodxa.com, focused on practical patterns for authentication, data loading, and designing libraries. He enjoys building full-stack applications, designing APIs other developers find obvious, and exploring what the Web Platform can do without a framework in the way.

### Introduction for a host

_Read aloud on stage or at the start of an episode_

> Our next speaker is Sergio Xalambrí. Sergio is a web developer at Daffy and the person behind Remix Auth and Remix Utils, two libraries you’ve probably used if you’ve built anything with Remix or React Router. He joins us from Lima, Peru. Please welcome Sergio!

## Photos

Cleared for event promotion and editorial use. No credit required.

- [Avatar](https://sergiodxa.com/.well-known/avatar): 421 × 421 PNG
- [Cover photo](https://sergiodxa.com/press/sergio-xalambri-helmet.jpg): 2000 × 1116 JPG

## Topics

- **Remix:** Building full-stack apps with Remix v3, its router, middleware and components.
- **React Router:** Framework mode, data loading, actions, authentication and patterns that scale.
- **The @sdxc packages:** Libraries for authentication, jobs, mail, caching and more on Web Platform APIs.
- **Authentication and OAuth 2.0:** Signing users in safely: sessions, OAuth 2.0, OpenID Connect and passkeys.
- **Maintaining open source:** Designing APIs, versioning and supporting libraries thousands of apps rely on.
- **Web development:** The Web Platform, progressive enhancement, and designing libraries people enjoy.

## Open source

- [Remix Auth](https://github.com/sergiodxa/remix-auth): Authentication for Remix and React Router apps, with dozens of strategies.
- [Remix Utils](https://github.com/sergiodxa/remix-utils): Utilities for routes, responses, server-sent events, CSRF and more.
- [The @sdxc packages](https://github.com/sergiodxa/monorepo): A monorepo of packages and apps built on Web Platform APIs, at sdxc.dev.
- [Remix](https://github.com/remix-run/remix): Contributor to the framework and its packages.
- [React Router](https://github.com/remix-run/react-router): Contributor to the router and its framework mode.

## Talks and appearances

- [The Remix Way](https://www.youtube.com/watch?v=o07u1oKE6VA): Remix Jam 2026, Toronto, October 2026 (English)
- [Remixing How We Give](https://www.youtube.com/watch?v=eh6FfHFpYMM): Remix Conf Europe 2022, November 2022 (English)
- [Introducción a Remix.run](https://www.youtube.com/watch?v=0QkFGTX9P78): Dev Talks Perú, May 2021 (Spanish)
- [Hablamos con Sergio Xalambrí sobre frontend, trabajo remoto, aprender a programar y más](https://www.youtube.com/watch?v=KVjOiU7J60g): Goncy (Spanish)
- [Testing in the frontend world](https://www.youtube.com/watch?v=sOMAMtOBiA8): Meetup.js Argentina (Spanish)
- [React Suspense y SWR](https://www.youtube.com/watch?v=rXZeFfeKy50): Leonidas Esteban (Spanish)
- [Lo mejor para React.js](https://www.youtube.com/watch?v=dBmcmr_0CqM): Leonidas Esteban (Spanish)
- [Lanzamos suscripciones y el curso gratis de desarrollo web](https://www.youtube.com/watch?v=3HdPkgQRXwg): Leonidas Esteban (Spanish)

## Formats

- **Lightning talks:** Five to ten minutes on one idea.
- **Talks:** Around thirty minutes, with or without live coding.
- **Keynotes:** Opening or closing a conference.
- **Workshops:** Hands-on and paid, from half a day to a full day.
- **Recording:** Talks may be recorded and published.
- **Travel:** In-person events need travel and lodging covered.

## Elsewhere

- [Website](https://sergiodxa.com)
- [GitHub](https://github.com/sergiodxa)
- [X](https://x.com/sergiodxa)
- [YouTube](https://www.youtube.com/sergiodxa)
- [Packages](https://sdxc.dev)

## Invite me

Organizing a conference, meetup, podcast or workshop? Tell me about it and I’ll reply by email.

[Invite me](https://sergiodxa.com/press?lang=en#contact)