I build secure, high-concurrency APIs and full-stack applications, from social platforms to digital wallets and payment systems.
In my Twitter Clone project, I built authentication, user management, posts, and social interactions with TypeScript, Next.js, React, PostgreSQL, Redis, and Docker. I added Argon2id hashing, secure cookies, Zod validation, Redis-based rate limiting, automated tests, and GitHub Actions CI/CD.
I developed a Java 21 and Spring Boot wallet API with transactional transfers, balance validation, wallet restrictions, external authorization, notifications, JWT security, Flyway migrations, OpenAPI documentation, and test coverage.
At TELUS Digital AI Data Solutions, I evaluate Portuguese-language AI responses for accuracy, relevance, consistency, and language quality, providing structured feedback to support AI system improvement. I’ve also built backend projects involving load balancing, PostgreSQL locking, payment failover, and real-time fraud detection.
