
Guilherme D.
Java and Nodejs Expert , Desktop and Web Solutions
Skills

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Werkervaring
Full Stack Developer
Freelancer.com • Freelance
Mar 2024 - Present • 2 yrs 2 mos
Full Stack Developer focused on building robust Desktop and Web applications from scratch. I specialize in turning complex requirements into functional, clean code. Key Projects Developed: 1. ZenFlow (SaaS Logistics System): Designed and developed a web-based inventory management system focused on logistics and IoT. Tech Stack: Node.js, Express, React, and PostgreSQL. Implemented secure authentication (JWT), complex database relationships, and RESTful APIs. 2. VetMate (Management Software): Built a complete desktop application for veterinary clinic management. Tech Stack: Java Swing (GUI), JDBC, and Raw SQL. Focused on performance optimization, intuitive UI design, and reliable database connectivity. My Core Workflow: Requirement Analysis & Database Modeling. Back-end development (API & Logic). Front-end implementation (Responsive & User-friendly). Rigorous Bug Fixing & Testing.