I will develop a secure fintech app, crypto wallet app, payment app, blockchain payment

B
biggie_elijah
B
biggie_elijah
Elijah
develop a secure fintech app, crypto wallet app, payment app, blockchain payment
Full Screen
develop a secure fintech app, crypto wallet app, payment app, blockchain payment

About this gig

Hi, are you building a Fintech startup, Crypto wallet, Neobank or Payment platform? I develop secure, scalable fintech applications designed for real-world deployment not templates or clone scripts.


This gig covers custom fintech development including digital wallets, custodial or non-custodial systems, payment processing logic, crypto integrations, ledger architecture, admin dashboards and compliance-ready infrastructure.


I focus on security, performance and clean architecture. Whether you need a web-based MVP to validate your idea or a full app + mobile fintech ecosystem with crypto support, I can deliver a structured, production-ready solution.


My Services includes:

  • Secure authentication & user roles
  • Wallet & ledger systems
  • Send/receive & transaction tracking
  • KYC/KYB integration
  • Crypto wallet integration (ERC20/BEP20)
  • API & payment gateway integration
  • Admin dashboard & reporting
  • Cloud deployment support


Every project is built with scalability and compliance in mind.


Please contact me before placing an order to discuss scope, security requirements and architecture.


Looking forward to working with you.


  • App type

    • Hybrid

  • Programming language

    • Java
    • JavaScript
    • PHP
    • Python
    • HTML
    • React Native
    • Flutter

  • Frameworks

    • Flutter
    • Ionic
    • SwiftUI
    • Jetpack Compose Multiplatform
    • Node.js
    • React Native

  • Purpose

    • Finance
    • Crypto
    • Ecommerce
    • Gaming
    • Trading
    • Wallet app

  • Tools

    • Flutterflow
    • AppSheet
    • Xcode
    • Firebase
    • Visual Studio
    • Supabase

  • Expertise

    • Performance
    • Security
    • Design
    • Data storage
    • Instant App/App Clip
    • API integration

Get to know Elijah

Elijah

Blockchain and Web3 Developer, Mobile Apps, Smart Contracts, Websites

  • FromFrance
  • Member sinceAug 2026
  • Avg. response time1 hour

  • Languages

    English
I am Elijah, founder of Biggie Blockchain Technologies. We are a professional blockchain and Web3 development company with 6+ years of experience serving clients worldwide. We specialize in crypto wallet apps, smart contract development, token development, dApp development, mobile app development, website development and WordPress development on Ethereum, BSC, Polygon, Solana, Avalanche, Tron, Base and Bitcoin. Clean code. On-time delivery. Post-delivery support on every project. Message me to discuss your project.

Other Mobile App Development Services I Offer

Related tags