Edvaldo Junior is a seasoned Java engineer with nine years of professional experience and a Master in Software Engineering, currently contributing as Dev III at Inter. He brings deep backend expertise across Java (8–17), Spring ecosystem, databases (Oracle, DB2, SQL Server, MongoDB) and messaging systems (Kafka, RabbitMQ, SQS), plus practical DevOps and AWS exposure. A strong track record in finance, automotive and enterprise systems includes leading technical teams and delivering resilient services for clients like Mercedes-Benz and PagSeguro. On mobile and blockchain, he’s an active contributor to the popular Trust Wallet Core project, adding Android transaction-signing and address-derivation tests that improve cross-chain wallet reliability. Comfortable in Scrum environments, he blends hands-on implementation, automated testing and architecture thinking to move projects from legacy systems to modern microservices. Colleagues describe him as a pragmatic problem-solver who pairs disciplined engineering practices with a curiosity for payments, wallets and protocol engineering.
9 years of coding experience
6 years of employment as a software developer
Bachelor of Technology (B.Tech.), Data Processing and Data Processing Technology/Technician, Degree, Bachelor of Technology (B.Tech.), Data Processing and Data Processing Technology/Technician, Degree at FIBAM (Faculdades Integradas Barros Melo)
Database Administration, IT, Post-graduation, Database Administration, IT, Post-graduation at FIBAM
Master in Software Engineering, IT, Master in Software Engineering, IT at CESAR School
Mobile Developer (Android) & Test Automation Engineer
Contributions:6 releases, 15 commits, 28 PRs in 3 months
Contributions summary:Edvaldo contributed primarily to the Android side of the project, as evidenced by multiple Kotlin test files. They focused on implementing and testing new features and functionalities, specifically around Binance and Ripple transaction signing and added and reorganized various tests. The user also added address derivation tests and created tests for Bitcoin and other blockchain-related features within the Android environment. These tests demonstrate a focus on validating the core functionality of the wallet library.
Computer Vision on Android with Kotlin and Tensorflow Lite
Contributions:20 commits, 11 pushes, 1 branch in 1 year 6 months
visioncomputer-visionandroidtensorflow-litekotlin
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