Available for Contracts
Java / Spring Boot Specialist & Mobile Developer
Software engineer with 10+ years in IT. Building robust corporate systems with Java and Spring Boot, high-availability RESTful APIs, and cross-platform mobile applications with Flutter. I deliver scalable, well-documented solutions on time.
01 — About
I am a developer with solid experience in Java Enterprise, Spring Boot, and distributed systems architecture, also working in mobile development with Flutter and Dart. Over more than a decade in IT — including technical leadership and management of IT departments in military organizations — I developed a unique ability to deliver quality software under pressure, with a focus on measurable results and clear stakeholder communication.
I am currently pursuing a Technology in Internet Systems degree (expected completion: 2026) and continually update my skills with best practices from the modern Java ecosystem and cross-platform mobile development.
02 — Stack
03 — Journey
04 — Portfolio
The problem: Military organizations managed rosters and attendance with physical
spreadsheets — a slow, error-prone process.
The solution: A complete app for personnel management, roll call control, and duty roster
generation, with real-time Firebase sync and an interface tailored for military hierarchy.
Result: Active system in production, eliminating the manual attendance control process.
A real-time budget and financial control app for families and individual use. Supports simultaneous entries from multiple users, push notifications, cloud receipts, and ad removal via license.
A complete solution for library management and loan control. Facilitates collection organization, reader tracking, and support history via chat. Published on Google Play Store.
An educational app with a quiz system, synced progress, and gamification (levels, scores, and coins). Monetized with AdMob and a premium license option. Published on Google Play Store.
Brazilian Football Championship tracker with real-time Firebase data. Includes account login, favorite teams, ranking, and AdMob ads. Evolved replacement of i9Fute. Published on Google Play Store.
The original Brazilian football tracking app, with login, real-time data, and AdMob ads. The precursor to i9Brasileirão. Published on Google Play Store.
A utility that monitors and records Android device boot time. Runs fully offline with no personal data collection. Simple, lightweight, and efficient. Published on Google Play Store.
05 — Education
06 — Contact
Available for software development contracts. Reach out via email or GitHub.
📍 Porto Alegre, RS – Cidade Baixa, Brazil