Sidney LimaHi, I'm Sidney · Pernambuco, Brazil.
I am a software engineer who turns business problems into products that actually work in production. I move across the whole stack: on mobile, with React Native, Flutter, Swift and Kotlin; on the front end, with React and Next.js; and on the back end, with Node.js, Java and Spring, SQL and NoSQL databases, Docker, CI/CD and cloud on Azure and Google Cloud. Since 2021 I have taken part in the full cycle, from architecture to deployment and monitoring, with a focus on performance, accessibility and maintainable code. Today I help evolve a retail SuperApp used by millions of people.
Development of the MED24 app from a web platform, focusing on mobile performance and usability with React Native (Expo). I worked on API integrations, state management with TanStack Query, validations with React Hook Form + Zod, and animations with Reanimated, including a custom loading animation inspired by heartbeats.
Developed with React Native and React using JavaScript and Styled Components, I led the development of components, worked on consuming RESTful APIs, and implemented unit tests with Jest to validate critical functionalities.
Personal project developed to help users find nearby restaurants and partners, view their information, and check discount coupons.
System created using Ionic React, developed in a Cross-Platform manner (Web and Mobile) to assist small healthcare professionals in managing their patients more efficiently.