Guido Medina
Sofware Development Engineer at Howdy.com
Argentina
Summary
👤
Senior🎓
Top SchoolGuido Medina is a senior software development engineer from Argentina with nine years of experience building scalable backend systems, specializing in Go, microservices, and distributed architectures powered by Kafka, NATS and gRPC. He has strong blockchain credentials from his work on the RSK Java client—contributing federation logic, solidity encoding and tests—and practical smart-contract and Bitcoin scripting experience. Guido pairs backend expertise with front-end skills in React, Vue and Angular, and a history of evolving from QA automation into full-stack development and systems architecture. Known for pragmatic hexagonal designs and concurrent solutions, he has repeatedly improved performance and reliability at companies like Mercado Libre, PedidosYa and 11:11 Systems. Colleagues rely on him to bridge complex integration points (e.g., AWS SNS/SQS, CI/CD and messaging systems) and to ship production-ready services quickly.
9 years of coding experience
11 years of employment as a software developer
Java Web: Servlets, JSP, JSTL, Strusts y Ajax – Educación IT, Java Web: Servlets, JSP, JSTL, Strusts y Ajax – Educación IT at Educación ITAnalista de Sistemas, Sistemas de información, Analista de Sistemas, Sistemas de información at Instituto Tecnológico BeltranCurso de Modelado de Datos, Sistemas de información, Curso de Modelado de Datos, Sistemas de información at Everis
English
Github Skills (6)
unit-testing10
javas10
rootstock10
java10
blockchain9
solidity9
Programming languages (3)
Github contributions (5)
rsksmart/rskj
Aug 2019 - Mar 2021
RSKj is a Java implementation of the Rootstock protocol.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:89 reviews, 120 commits, 47 PRs in 1 year 7 months
Contributions summary:Guido primarily contributed to the core Java implementation of the Rootstock protocol. Their work involved adding and testing methods within the `Federation` and `FederationMember` classes. They also added validation and unit tests to check that `feePerKb` is positive. Furthermore, they implemented and tested solidity encoding, adding a lock event to the Bridge.
rskjavarskj
guidohernan93/RestoFinder
Sep 2016 - May 2017
Contributions:2 PRs, 15 pushes, 3 branches in 8 months
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