Hi there,
My name is Sergio and I am a software developer here at the freelancer com marketplace. Thanks for using our website!
I am strong with Azure development and have interfaced with several Azure APIs, such as the Azure Management API, and the Azure AD, etc.
What I would do in this case is probably first resolve your top contributors requirement as an isolated use case with .NET since I am strong with this framework, with this I would have gained the proper calls to Azure Git Api. Then I would adapt to Ruby and integrate to your app.
I am looking forward to hear back from you. Please feel free to ping me and we may discuss further anytime.
Many thanks!
Sergio