This project was a part of my learning program at Crio. It's a visual stock portfolio manager developed in java. I worked on the back-end logic of this project which includes making making 3rd party REST API calls using Spring REST Template, Exception Handling and Unit Testing. Introduced concurrency for improved code performance and improved end-user experience. Skills learnt : Spring Rest, Mockito, Jackson, Implementing design patterns in OOPs, Multi threading in Java.