I will do money transfer ap, loan app, transaction app, fintech app, payment app

J
johnwill97
J
johnwill97
johill infotech
do money transfer ap, loan app, transaction app, fintech app, payment app
Full Screen
do money transfer ap, loan app, transaction app, fintech app, payment app

About this gig

Are you looking for a reliable ASP.NET Core developer to build a secure, scalable, and high-performance web application? With 7+ years of experience in Microsoft technologies, I specialize in ASP.NET Core, C#, and SQL Server to deliver efficient and modern solutions.


I develop custom web applications tailored to your business needs, ensuring clean architecture, strong security, and optimal performance. My expertise includes RESTful API development and integration, payment gateway integration (Razorpay, Stripe, PayPal), fintech and money transfer applications, and third-party API integration.


I also work with Entity Framework Core for efficient data handling and provide database design, query optimization, and performance tuning. I implement secure authentication systems using JWT and Identity to protect your application and user data.


In addition, I offer bug fixing, performance optimization, and migration from ASP.NET MVC to ASP.NET Core. I focus on writing clean, maintainable code and delivering projects on time with clear communication.

Lets work together to turn your ideas into a powerful and reliable web application.

  • App type

    • Native

  • Programming language

    • C
    • Dart
    • Java
    • Objective-C
    • Python
    • Rust
    • React Native

  • Frameworks

    • Flutter
    • Kivy
    • Beeware
    • Laravel
    • Cordova
    • Node.js
    • React Native

  • Purpose

    • Chat
    • Finance
    • Real estate
    • Trading
    • Wallet app

  • Tools

    • Xamarin
    • Glide
    • Flutterflow
    • Bravo
    • AppGyver
    • Xcode
    • Supabase

  • Expertise

    • Localization
    • Security
    • Design
    • Ads & monetization
    • Data storage
    • Firebase

Get to know johill infotech

johill infotech

app and website

  • FromNigeria
  • Member sinceMay 2026
  • Avg. response time10 hours

  • Languages

    English, Spanish, French, Arabic
I’m an experienced Mobile Full Stack Developer with a passion for building high-performance, scalable, and user-focused mobile applications that blend powerful backend systems with beautiful, intuitive design. With strong expertise in Flutter, React Native, Nodejs, Express, MongoDB, Firebase, and AWS, I create cross-platform mobile apps that are fast, secure, and fully optimized for both iOS and Android. I handle every stage of development — from UI/UX design and API integration to backend architecture and cloud deployment — ensuring a complete, end-to-end solution tailored to your vision.

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