Summary
Douglas De Oliveira Mendes is a senior full-stack engineer with 11 years of experience who favors backend-heavy, reusable solutions and pragmatic architecture over premature optimization. Based in Philadelphia, he has built resilient APIs and BFFs for fintech and e-commerce—working with Ruby on Rails, Spring Boot, Java, React and integrations with providers like Marqeta, EML and Treasury Prime. He consistently drives team practices around refactoring, automated unit tests, modular components and CI/CD while reducing tech debt, a detail that he admits keeps him up at night. His career spans startups to large enterprises (IncumbentFI, PayWith, eBay, Telefónica, IBM), giving him a knack for balancing product-domain thinking with operational realities. Outside work he distills priorities simply as "Deus, família e código," reflecting a grounded approach that fuels sustained focus on clean architecture.
11 years of coding experience
21 years of employment as a software developer
Bachelor, Computer Science, Bachelor, Computer Science at Universidade Federal de Santa Catarina
English, Portuguese, Spanish