Marcelo Liberato
CTO at Estapar
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolMarcelo Liberato is a seasoned technology executive and entrepreneur with over 20 years building cloud-native systems, mobile applications and payment platforms. As CTO at Estapar and co-founder of Zul Digital (acquired by Estapar), he has driven product visions that scaled to millions of users and set new standards in urban mobility. He played a hands-on role in payment innovations across Google Pay, Apple Pay and 3D Secure, and was active in enabling Pix adoption in Brazil through cross-industry collaboration. Marcelo combines C-level strategy with deep engineering chops—contributing to open-source projects like Vert.x Web by resolving tricky OpenAPI3 form-encoding and validation issues. Based in São Paulo, he is regularly sought by industry groups such as ABECS for guidance, reflecting a rare blend of operational leadership, entrepreneurial risk-taking and protocol-level payments expertise.
13 years of coding experience
9 years of employment as a software developer
Bachelor Computer Science, Bachelor Computer Science at FASP - Faculdades Associadas de São Paulo
English, Portuguese
Stackoverflow
316reputation
32kreached
11answers
0questions
Github Skills (21)
apidoc10
testing10
webpages10
web-content10
java10
javas10
api10
vertx10
openapi10
server10
clientside9
reactive9
webclient9
oracle6
hibernate6
Programming languages (4)
Github contributions (5)
vert-x3/vertx-web
Nov 2017 - Dec 2017
HTTP web applications for Vert.x
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 commits, 4 PRs, 5 comments in 18 days
Contributions summary:Marcelo contributed to the `vertx-web` project by modifying and testing the OpenAPI3 validation components. They addressed form parameter encoding/decoding issues, ensuring that the application correctly handles special characters in form-encoded data. Furthermore, the user implemented and tested validation for various scenarios, including handling complex data structures in form data and integrating with OpenAPI3 specifications.
non-blockingweb-applicationssockjshttp3event-loop
mliberato/micronaut-core
Oct 2020 - Oct 2021
Micronaut Application Framework
Contributions:6 pushes, 1 branch in 1 year
micronautframeworkapplication-frameworkmicroservicesjava
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