Senior Software Engineer

Augusto Xavier

Ruby on Rails & Go · Open Source Contributor

Goiânia, Brazil · Remote for teams in the US, Canada & Europe · Open to senior & staff roles

I help build a royalty platform (books, games, audiobooks, and more), SaaS, and high-volume web systems. 20+ years shipping software — Ruby on Rails since 2008 — with contributions merged into several open-source projects, including Rails, Devise, and RuboCop.

20+ years building softwareRails since 2008Polyglot — Rails · Go · ReactMerged PRs upstream

Experience

Metacomet — Senior Software Engineer

Nov 2021 — Present

Canada / USA · Remote

Build and evolve a SaaS platform for royalty, rights & accounting (Ruby on Rails).
Polyglot delivery — Rails core, Go services & internal tooling, React front end.
Performance work balancing run-time and background processing.
End-to-end testing with Playwright; high test coverage and code quality.

SayWay — Senior Rails Engineer

Mar 2021 — Oct 2021

Germany · Remote

Global survey platform collecting answers from 10k+ devices worldwide.
Performance via caching and background processing (Resque).
PostgreSQL tuning: partitioned tables, query and index optimization.
Led the Ruby 2.6 → 2.7 upgrade.

Ministério Público de Goiás — Senior Rails Software Engineer

Aug 2008 — Mar 2021 · ~12.5 yrs

Goiânia, Brazil

Introduced Ruby on Rails to the organization (2009) — now its only language.
Led migration of a large system from Flex to AngularJS.
Introduced Elasticsearch — slow requests cut from 2–3 min to under 3 s.
Spanned the full Rails lifecycle: legacy maintenance, large migrations, and greenfield on the latest Rails.
Delivered Rails, RSpec & Elasticsearch training; set up Capistrano + Jenkins.

Projects

Memorial Vivo Creator · Solo build, end to end

My flagship solo product — a production SaaS for creating and managing digital memorials, letting families honor loved ones with photos, stories, events, and guest books. Live at memorialvivo.com.br (codename: Grimes).

Ruby on Rails · PostgreSQL · Docker · Hotwire

memorialvivo.com.br ↗

Tripify Founding engineer · Architecture & Infra

A collaborative trip-planning startup (iOS, Android & web), 2016–2023, built by a team of five engineers, where I led the architecture, server setup, and deploy pipeline. Now discontinued.

iOS · Android · Web — Ruby on Rails backend