João Petreli
Techlead Java at Bradesco
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolJoão Petreli is a tech lead and software engineering leader with over 13 years of hands-on experience and 17 years in the industry, specializing in Java and Go for high-scale distributed systems. He has repeatedly built resilient, API-first microservices and event-driven architectures that process millions of messages daily, combining Kafka, RabbitMQ, and cloud platforms (AWS, GCP, Azure) with Kubernetes for production-grade reliability. João has led and scaled teams from small, junior-heavy groups to 30-engineer organizations, instituting engineering best practices like testing pyramids, DORA metrics, Clean Code and hexagonal architecture. His balance of people leadership and deep systems design is proven by driving high-availability platforms in finance and energy domains, including a payments and investment stack that processed heavy trading volumes and reduced incidents through focused operational sprints. He holds a Master’s in Computer Software Engineering from USP and is known for negotiating cross-functional alignment to turn complex business rules into extensible, maintainable APIs. Less obvious: he often combines “mechanical sympathy” performance tuning with mentoring, ensuring both systems and engineers scale together.
13 years of coding experience
14 years of employment as a software developer
Bacharel em Análise de Sistemas, Análise de Sistemas, Bacharel em Análise de Sistemas, Análise de Sistemas at Faculdade de Tecnologia de São PauloMaster's degree, Computer Software Engineering, Master's degree, Computer Software Engineering at Universidade de São Paulo / USP
English
Github Skills (7)
rdap10
go-server4
latex3
cli3
golang2
server2
web-framework1
Programming languages (1)
Github contributions (5)
joaopetreli/iptex
Feb 2014 - May 2015
Contributions:5 commits, 1 PR, 1 push in 1 year 3 months
estadoinstitutolatex-templatelatexser
joaopetreli/gobelisk
Aug 2012 - Mar 2017
Contributions:32 commits, 1 push, 1 comment in 4 years 7 months
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