We are an international non-profit working on an Android app to be used by our staff working in 30 countries around the world. The bulk of the work is complete but we need particular help with securing access to the app within the organisation’s Microsoft Office 365 identity infrastructure using single sign-on (SSO). We believe this will be a relatively short debugging exercise for the person with the right skills. The app is written in Java and makes API calls to a PHP/Laravel backend to access data in a SQL database.