I will integrate payment gateway firebase or apis into your mobile app


About this gig
Need to connect your Android or Flutter app to a backend, payment system, or API? I will integrate it cleanly and reliably.
With 9+ years of mobile development, I have integrated hundreds of APIs across banking, e-commerce, and startup apps.
What I integrate:
- Firebase (Auth, Firestore, Cloud Functions, FCM, Analytics)
- Payment gateways (Stripe, Razorpay, PayPal, in-app purchases)
- REST APIs and GraphQL endpoints
- Google Maps, Places, Geocoding
- Social login (Google, Facebook, Apple)
- Push notifications (FCM, OneSignal)
- Any custom API or SDK
What you get:
- Clean integration following your app architecture
- Proper error handling and offline support
- Documentation and usage guide
- Source code via GitHub or ZIP
Share your app details and the API you need for a plan.
Get to know Pankaj Jangid
Android Developer Building Secure and Scalable Apps for 9 Years
- FromIndia
- Member sinceDec 2016
- Last delivery5 years
Languages
Hindi, English

