Vinícius Fuentes
Software Engineer at Cash App
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolVinícius Fuentes is a Senior/Staff Software Engineer and Tech Lead based in New York with 16+ years building scalable, customer-facing systems across startups and major platforms like Cash App, Uber, Stripe, DigitalOcean and Medium. He is polyglot in practice—shipping backend services in Go and Ruby, front-ends in React/Ember, and tooling across infrastructure and iOS—and has repeatedly owned on-call health, delivery velocity, and platform reliability. Vinícius mentors engineers, leads technical teams, and has a track record of redesigning critical pieces such as DigitalOcean’s Droplet orchestration and Marketplace services at Uber Eats. An active open-source contributor since the early web era, he has contributed bug fixes, tests and feature improvements to the widely used Devise authentication library for Rails. He blends hands-on implementation with architectural thinking, often building the testing, deployment and monitoring scaffolding that keeps products robust in production. Comfortable in both greenfield and legacy codebases, he brings pragmatic engineering and a knack for reducing operational churn.
16 years of coding experience
13 years of employment as a software developer
University of São Paulo
English, Portuguese, Spanish
Github Skills (9)
ruby10
ruby-rails10
user-authentication10
authentication10
devise10
rails10
testing10
omniauth9
git7
Programming languages (6)
Github contributions (5)
heartcombo/devise
Sep 2010 - Mar 2011
Flexible authentication solution for Rails with Warden.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 commits in 6 months
Contributions summary:Vinícius contributed to the Devise authentication library for Rails, focusing on fixing bugs and improving the codebase. They addressed documentation typos, corrected test errors related to time zones and OmniAuth, and improved route generation. They also implemented changes to the OmniAuth test helpers and added a test case for the Devise generator. Moreover, the user addressed the lockable feature, ensuring accounts are unlocked after their lock has expired, along with resetting the failed attempts counter, and warned about an incompatibility between Devise and Mongoid.
wardenrailsrails-engineauthenticationruby
vinibaggio/vinibaggio.github.com
Sep 2018 - Jan 2019
Contributions:10 commits, 11 pushes in 4 months
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