João Lopes
Software Engineer at Nubank
Rio de Janeiro, Brazil
Summary
👤
Senior🎓
Top SchoolJoão Lopes is a software engineer based in Rio de Janeiro with eight years of hands-on experience building resilient Spring Boot backends and APIs using Kotlin and Java. He blends hexagonal architecture, domain-driven design and TDD to deliver developer-friendly APIs with strong contract guarantees, often using Problem Details for consistent error handling and MockMvc for integration tests. At Thoughtworks he drove code quality and collaboration—hosting tech huddles, coordinating vendor onboarding, and achieving high test coverage—before joining Nubank. His background spans product engineering, event-driven systems on Azure, and measurable business impact (including an 80% reduction in missing stock for a client). A functional programming enthusiast and DDD practitioner, he pairs pragmatic engineering with a taste for developer experience and knowledge sharing.
8 years of coding experience
4 years of employment as a software developer
Bachelor's degree, Information Technology, Bachelor's degree, Information Technology at Universidade Federal Fluminense
Github Skills (14)
api5
rest-api4
nodejs4
rest4
collaboration2
api-platform2
postman2
leancloud1
nextjs1
firebase1
codex1
react1
lifecycle1
firestore1
Programming languages (8)
Github contributions (5)
GCAS-UFF/civa-pet-vaccination
Feb 2021 - Aug 2021
Microservice responsible for handling the vaccination context core domain.
Contributions:22 PRs, 53 pushes, 32 branches in 5 months
vaccinationdomainhandlingmicroservicesjava
j0a0m4/product
Oct 2022 - Oct 2022
Contributions:28 commits, 4 PRs, 17 pushes in 3 days
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.