The first of the projects I worked on involved implementing a message exchange platform for maritime and air transport. This project successfully replaced the outdated IATA standard, which was based on plain text and prone to human errors due to its reliance on the position of the text string, with a more modern, readable, and error-resistant format based on XML/JSON.

To achieve this, I defined a parser that translated messages from the old format to either of the two modern standards through a Restful API that adhered to the Richardson Level 3 maturity model. This API not only provided an entry point for message translation but also facilitated intercommunication with other platforms worldwide and the storage of these communications to ensure the traceability of package transit globally. The project's goals required a high-availability structure and a replicated database system based on MongoDB, implemented through a cluster of servers with each shard replicated.

The third project, executed for Securitas Direct, involved creating a comprehensive monitoring and care system for people with disabilities or the elderly. The system identified the user's status based on various sensors distributed throughout their home, including presence sensors, door opening sensors, and personal fall sensors. This data was collected to provide detailed information about the user's activities, which was not only stored and accessible for consultation but also capable of generating alarms based on the individual's typical behavior patterns. The system analyzed these patterns and alerted if any sudden changes were detected, with customizable alarm settings.

Additionally, the application included a mobile component developed as a hybrid application. This mobile version utilized sensors to identify falls, track the GPS position of the individual, and more.