Hey Jamie,
I am here with a total of twenty years of development experience. I can fulfill all job responsibilities with my experience.
I am working with web/mobile application development for a long time. .NET is my topmost skill.
I can help you to fulfill your customer requirements, I can create IOS/Android Application with flutter and build a DLL for push notifications. If you want I can integrate the same in their .NET admin panel. Please share more details about their .NET admin so we can decide which pages we need to integrate in the application. After reviewing the same I can give you the best price and time for completation.
I am waiting to have favorable words from your side.
Regards,
Anis