Senior Backend Engineer with 22+ years of experience building high-performance systems. Go specialist since 2012, prior to version 1.0. Founder of https://stickybit.com.br, where he develops solutions that replace expensive SaaS with custom systems up to 100× more efficient. Highlights: email platform processing 23M/day, integrations with 24 e-commerce platforms, APIs handling 2M requests/hour. Porto Alegre | https://stickybit.com.br | https://ligadous.com