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Bruno Prieto González

Accessibility Engineer

Blind programmer. Hotwire maintainer, Rails contributor. Making the web more accessible.

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Ruby on Rails Hotwire Accessibility PostgreSQL Elasticsearch React Python Elixir Docker

Summary

Accessibility Advocate

Maintainer of the open-source framework Hotwire and contributor to Ruby on Rails. Speaker at Rails World 2024.

Professional Background

B.S. in Computer Science from Federico Santa María University, Chile.
Built products at 37signals (Basecamp, HEY) and across Latin America.

Entrepreneurship

Co-founded Callback Systems and Ment.
Helps businesses build accessible, production-grade software.

Experience

Companies and projects I've worked on.

Callback Systems

Accessibility Engineer / Co-Founder

2024 - Present

Helps businesses build accessible products and operational software.

Ruby on Rails Accessibility

37signals

Programmer

Jun 2024 - Jul 2025

The creators of Ruby on Rails and Hotwire. Makers of Basecamp and HEY.

Ruby on Rails Hotwire Elasticsearch
Show Highlights
  • HEY Email: Built features like Bubble Up Now, Power Through New, Mark all as seen, and Name Tags for external accounts.
  • HEY Calendar: Implemented the Journal, Search with Elasticsearch, and Location lookup. Significant accessibility improvements.
  • Basecamp 5: Built the Unified Menu and Project Calendar. Improved overall accessibility.

Buk

Semi Senior Software Engineer

Feb 2023 - May 2024

The largest human resources and people management software in Latin America.

Ruby on Rails PostgreSQL
Show Highlights
  • Led Content Security Policies implementation and migration from Turbolinks to Turbo.
  • Designed and developed the Buk Design System, a critical component library for the company.
  • Resolved several security and accessibility issues across the platform.

Ment

Co-Founder & CTO

Apr 2022 - Present

Scheduling, payments, and electronic invoicing for professionals in Chile.

Ruby on Rails Hotwire

Profe Social

Software Developer

Sep 2021 - Mar 2022

Social network for teachers to share pedagogical material.

Ruby on Rails Hotwire
Show Highlights
  • Integrated a payment gateway expanding the platform to 11 countries.
  • Improved accessibility, SEO, and test coverage.

Languages

Born in Chile. Speaks three languages.

Spanish - Native English - Fluent Italian

Interests

Things I enjoy outside of code.

Web Accessibility Open Source Drums (Iron Maiden fan)