Hi, I'm Guilherme Duarte Software Developer working with Cloud and Java

Hello! My name is Guilherme Duarte, a software engineer based in Brazil - Florianópolis, working with cloud infrastructure, fintech systems, and scalable backend applications. I currently work as a Software Engineer at Mercado Livre, one of the largest technology companies in Latin America. I’m also an AWS Certified Cloud Practitioner, with a strong focus on cloud architecture, security, and operational efficiency. My Main Areas of Work Most of my work revolves around building reliable systems for financial products and digital platforms. Some of the products and systems I’ve worked on include: POS payment terminals Payment gateways and payment links Business digital bank accounts (PJ) Receivables anticipation systems (FIDC / factoring) Banking APIs and integrations with payment networks These environments require high availability, security, and scalability, which makes backend architecture and cloud infrastructure critical. What I Like Building I enjoy working on systems that involve