I will build secure payment processor, card payment gateway, and crypto payment gateway

M
meltwani
M
meltwani
Mel T.Wani
build secure payment processor, card payment gateway, and crypto payment gateway
Full Screen
build secure payment processor, card payment gateway, and crypto payment gateway

About this gig

I have designed secure payment gateways and facilitated integrations of cryptocurrency payment processors that effectively manage over $50 million in secure transactions. I specialize in developing robust checkout infrastructures and seamless payment processes tailored for e-commerce brands, software as a service (SaaS) platforms, and high-volume digital merchants.


Whether the requirement is to accept traditional credit and debit cards on a global scale or to implement decentralized cryptocurrency payment solutions, I provide production-ready code that minimizes the occurrence of failed transactions and significantly reduces cart abandonment rates.


Core Technical Expertise & Supported Providers:

  • Card Payment Gateways: Stripe, PayPal, Authorize.Net, Braintree, Adyen, and Checkout.com.
  • Crypto Payment Processors: Coinbase Commerce, NOWPayments, BitPay, and custom Web3 wallet connectors.
  • Backend & Architecture: Custom API integration, webhook handling, asynchronous payment verification, multi-currency conversion, fraud prevention rules, and PCI-DSS compliance optimization.


Message me right now to discuss your custom payment infrastructure requirements.

  • Platform

    • Wix

  • Website type

    • E-Commerce store
    • Business
    • Portfolio
    • Crowdfunding
    • Wiki/Knowledge
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Get to know Mel T.Wani

Mel T.Wani

PAYMENT GATEWAY ARCHITECT SECURE PROCESSOR AND CHECKOUT INTEGRATION

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

  • Languages

    English, German, French, Italian, Greek
I have designed secure payment gateway and processor integrations that handle over $50 million in transactions. My focus is on developing robust checkout infrastructure for e-commerce brands, SaaS platforms, and high-volume merchants. My expertise includes Stripe, PayPal, Authorize.Net, Braintree, Adyen, custom API integration, webhook handling, multi-currency checkout, fraud prevention, and PCI-DSS compliance optimization. I aim to eliminate failed transactions and reduce cart abandonment with high-quality payment architecture. Please contact me to discuss your payment integration needs.

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