---
title: "José Valim · Elixir Community"
description: "José created the Elixir language and still leads its development, while also building developer tools such as Livebook and Tidewave."
url: https://elixir.community/people/jose-valim/
---

[All people](https://elixir.community/people)

![José Valim](https://elixir.community/_astro/jose-valim.CGLe3AA5_1x9i6u.webp)

# José Valim

[Creator of Elixir, Dashbit](https://elixir.community/companies/dashbit)

-   [GitHub](https://github.com/josevalim)
-   [Dashbit blog](https://dashbit.co/blog)
-   [Twitter](https://x.com/josevalim)
-   [Bluesky](https://bsky.app/profile/josevalim.bsky.social)

> José created the Elixir language and still leads its development, while also building developer tools such as Livebook and Tidewave.

José created Elixir and works at Dashbit, where his public profile points to Livebook and Tidewave. His work connects the language itself with tools for interactive development and building applications.

## Known for

-   [**Elixir** · elixir-lang.org](https://elixir-lang.org)
-   [**Livebook** · livebook.dev](https://livebook.dev)
-   [**Tidewave** · tidewave.ai](https://tidewave.ai)

## Talks

-   63 min
    
    ElixirConf EU 2026 · Apr 22, 2026
    
    ### [Precision in Type System Design](https://www.youtube.com/watch?v=Ay-gnCqDw9o)
    
    How Elixir infers types across language constructs, and what comes next for the type system.
    
    [José Valim](https://elixir.community/people/jose-valim)
    

[More talks ](https://elixir.community/youtube#talks)

## Books

- [Adopting Elixir · Ben Marx, José Valim, Bruce Tate](https://pragprog.com/titles/tvmelixir/adopting-elixir/)
- [Programming Phoenix 1.4 · Chris McCord, Bruce Tate and José Valim](https://pragprog.com/titles/phoenix14/programming-phoenix-1-4/)

Profile last updated October 7, 2026

## More people

-   [Bruce Tate · Author and educator, Groxio](https://elixir.community/people/bruce-tate)
-   [Wojtek Mach · Hex and Ecto teams, Dashbit](https://elixir.community/people/wojtek-mach)
-   [Chris McCord · Creator of Phoenix](https://elixir.community/people/chris-mccord)

[Everyone ](https://elixir.community/people)

Meet someone new from the community, now and then.