QMoney is a visual stock portfolio analyzer. It helps portfolio managers make trade recommendations for their clients.

During this Project, I:

Implemented the core logic of the portfolio manager and published it as a library.

Refactored code to add support for multiple stock quote services.

Improved application stability and performance.

QMoney Architecture

QMoney Portfolio Manager Interface

QMoney Modules

1. Fetch stock quotes and compute annualized stock returns

   • Scope of work:
     
     1. Used Tiingo’s REST APIs to fetch stock quotes.
     2. Computed the annualized returns based on stock purchase date and holding period.
     
   • Skills Learned:
     
     Java, REST API, Jackson

2. Refactor using Java interfaces and publish a JAR file

   • Scope of work:
     
     1. Refactored code to adapt to an updated interface contract published by the backend team.
     2. Published the portfolio manager library as a JAR for easy versioning and distribution.
     3. Created examples to help document library (JAR) usage.
     
     
   • Skills Learned:
     
     Interfaces, Code Refactoring, Gradle

3. Improve application availability and stability

   • Scope of work:
     
     1. Added support for a backup stock quote service (Alpha Vantage) to improve service availability.
     2. Improved application stability with comprehensive error reporting and better exception handling.
     
     
   • Skills Learned:
     
     Interfaces, Exception Handling

Tech Used - Java | Gradle | Rest API | Jackson | Interface | JUnit | Mockito | Stream