Mario Silveira

I’m a motivated engineer who’s found programming to be the best way to develop real, functional systems and applications. I develop native iOS apps in Swift and SwiftUI, starting from a design, always striving for high-quality code and intuitive interfaces. I currently have an app published on the Apple Store.

During my internship at WEG S.A, I built from scratch a CRM system in VBA for the BESS (Battery Energy Storage Systems) division. I implemented automatic generation of complete technical and commercial proposals, integrated external API data for exchange rates and dates, and centralized customer data, order statuses, product specs, and sales follow-ups. This reduced proposal preparation time by 90%, eliminating manual processes.

My Mechatronics Engineering background supports how I think about engineering problems end-to-end. In my thesis, I developed a high-precision, low-cost digital thermometer with hardware and embedded software integration with a microcontroller, calibrated and certified by CERTI and validated in a real industrial environment.

I use GitHub to share and showcase my work. I’m looking for a Junior iOS Developer position where I can apply my skills to real-world products and advance my career as a mobile developer.