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I will develop fintech app crypto wallet payment app neobank p2p lending
MASON
About this gig
Fintech app development cross-platform Android, iOS & web, built for real financial operations.
I build: payment apps, crypto wallets, neobank platforms, P2P lending apps, BNPL apps, and mobile banking systems production-ready with compliance built in.
What's included:
- Secure JWT/OTP/MFA authentication
- Immutable transaction ledger (audit-ready)
- Stripe, PayPal, or custom payment gateway
- KYC/KYB + AML fraud detection
- Multi-currency wallet system
- Admin dashboard + analytics panel
- Push notifications & in-app messaging
- 36 months post-launch maintenance
Tech Stack:
Flutter · React Native · Node.js · TypeScript · PostgreSQL · AWS · Firebase
App Types I Deliver:
- Loan & Investment Apps
- Buy Now Pay Later (BNPL)
- Money Transfer App
- Crypto Wallet App
- Mobile Banking & Neobank
Every delivery includes source code, deployment support, and a walkthrough session. Message before ordering to align on scope.
Get to know MASON
MASON
Flutter React Native Fintech App Developer KYC Wallet Payments
- FromUnited Kingdom
- Member sinceJun 2026
- Avg. response time7 hours
Languages
Dutch, English, German, French, Spanish, Italian
Fintech apps shipped for startups and financial platform across crypto wallets, P2P lending, neobanks, and payment gateways. I build cross platform mobile and web solutions in Flutter, React Native, and Node.js — covering UI/UX design through to secure backend with JWT auth, KYC/AML integration, Stripe, and multi-currency wallet systems. Clients get pixel-accurate screens, scalable architecture, and source code. 5+ years building apps that handle money: zero-lag transactions, bankgrade encryption and regulatory-compliant flows out of the box. Message me with your specs I'll reply within 1 hour
My Portfolio
FAQ
Will my fintech app work on both Android and iOS?
Yes. I build cross-platform apps using Flutter and React Native — one codebase runs on Android, iOS, and web browsers. No duplicate cost, full native performance on all platforms.
How do you keep user data and transactions secure?
Every app uses JWT/MFA authentication, encrypted data at rest and in transit, and an immutable ledger design. Security is not an add-on — it's embedded from the first line of code.
Can you add crypto wallet and KYC to the same app?
Absolutely. I regularly combine crypto wallets, KYC/KYB identity verification, AML fraud checks, and payment gateways into single fintech platforms. Send your feature list before ordering.
What happens after the app is delivered?
You get 3–6 months of free maintenance depending on your package, full source code, and a handover session. I stay available for bug fixes and critical patches post-launch.
