Jhonnatan Da Costa Vieira
Senior Application Security Engineer Secure Development Advocate At NewFold
Mato Grosso do Sul, Brazil
Summary
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Senior🎓
Top SchoolJhonnatan Da Costa Vieira is a Senior Application Security Engineer and Secure Development Advocate with eight years of experience building secure, production-ready software across Latin America. He has led DevSecOps initiatives—introducing Security Champions, integrating SAST/DAST into CI/CD, deploying Keycloak for modern IAM, and rolling out secret vaults—to shift application security left and empower developer teams. Prior roles blend hands-on full-stack and backend development (Java, Spring Boot, Angular) with red-team remediation and performance-focused patching, giving him a practical perspective on risk and reliability. Based in Mato Grosso do Sul, Brazil, he pairs formal training in systems analysis and physics with a knack for translating security controls into developer-friendly workflows. Notably, he has moved beyond advisory work to implement the tools and pipelines that make secure practices repeatable at scale.
8 years of coding experience
6 years of employment as a software developer
Bacharelado Análise de Sistemas de Computação, Bacharelado Análise de Sistemas de Computação at Universidade Federal de Mato Grosso do Sul
Github Skills (14)
wkt8
android5
macos4
ios4
windows4
react-native4
dart3
flutter3
firebase3
authentication3
cross-platform2
angular2
auth2
rio1
Programming languages (3)
Github contributions (5)
mrgr4v3s/firebase-auth
Sep 2019 - Apr 2020
Angular 8 authentication project using Firebase Auth
Contributions:12 commits, 10 PRs, 19 pushes in 6 months
angular-8firebaseauthenticationangularfirebase-auth
mrgr4v3s/trending-github-projects
Feb 2020 - Jan 2022
Project created with React to show the most starred repositories created 30 days ago
Contributions:17 PRs, 18 pushes, 2 branches in 1 year 11 months
repositoriesreacttrendingreactjsago
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