My greatest achievements are: -the migration of a system that was with tech from 90's, with an irc protocol that was for real time comm, we migrated it for node, socket io. -I also like to comment on the project with react native, it's worth mentioning that when I started the project they had not told me that it was in react native technology, they put me in the project and I had to learn to code react native At the same time it was being developed, the app was for a time tracker of tasks and payroll of employees. The app had offline functionality.