At DomusLab.io, I develop and maintain backend features for a production Node.js application, including REST endpoints, validations, and business rules. I evolved API contracts to centralize medication information across therapy, patient, and billing workflows while preserving compatibility with the existing frontend.
I implemented automated tests with Jest and worked on data persistence using Sequelize, MySQL, and MongoDB, including moving entities from Firebase to MongoDB. I also contributed to Angular features when needed and collaborated with an international team through code reviews and technical discussions.

