I will develop secure custom web or mobile application

N
novotix
N
novotix
Joeri Be
develop secure custom web or mobile application
Full Screen
develop secure custom web or mobile application
Full Screen
Full Screen
develop secure custom web or mobile applicationdevelop secure custom web or mobile applicationdevelop secure custom web or mobile application

About this gig

Are you looking for a secure, scalable mobile app built by an experienced fintech developer?


I am a senior Web and Mobile Developer with 20+ years of experience delivering business critical applications. I specialize in cross platform mobile apps using Flutter, backed by secure and high performance backend systems.


My expertise includes:

  • Fintech app development
  • Payment gateway integration
  • POS system integration
  • Online and onsite payment solutions
  • API architecture and development
  • Secure transaction workflows
  • Laravel and PHP backend systems
  • MySQL database optimization
  • Linux server deployment


I have extensive experience building event platforms, ticketing systems, visitor registration apps, and cashless payment ecosystems handling high transaction volumes.


As a former IT Director, I approach projects strategically. I focus on security, scalability, clean architecture, and long term performance.


Whether you need an MVP, a production ready business app, or a full fintech platform with payment processing, I can help you build it properly and scale it with confidence.


Please contact me before placing an order to discuss your requirements.

  • App type

    • Hybrid

  • Programming language

    • Dart
    • Java
    • JavaScript
    • Kotlin
    • PHP

  • Frameworks

    • Flutter
    • Laravel
    • Jetpack Compose Multiplatform
    • Node.js
    • React Native

  • Purpose

    • Delivery
    • Restaurant
    • Booking
    • Finance
    • Productivity tools
    • Crypto
    • Custom
    • Ecommerce
    • Wallet app

  • Tools

    • Android Studio
    • Xcode
    • Firebase
    • Visual Studio Code

  • Expertise

    • Cross browser/Device compatibility
    • Performance
    • Security
    • Data storage
    • Release management
    • API integration

Get to know Joeri Be

Joeri Be

Senior Web and Mobile Developer Specialized in Payments

  • FromNetherlands
  • Member sinceNov 2017
  • Avg. response time7 hours

  • Languages

    English, Dutch
Senior Web, Mobile & Software Developer with 20+ years of experience building secure, scalable applications. Specialized in fintech systems, payment gateway integrations, and business critical platforms where performance and reliability matter. Expert in iOS, Android (Kotlin, Flutter), PHP, Laravel, APIs, MySQL, and Linux environments. Former IT Director combining technical depth with strong business insight. Reliable, structured, and focused on long term solutions. Let’s build something solid.

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