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Payment Gateway & API Integration

$12/hr Starting at $150

Need reliable API integration or a secure payment gateway for your website or app? I specialize in integrating modern payment systems and custom APIs to help businesses accept payments smoothly, automate workflows, and deliver a seamless user experience.

I integrate a wide range of solutions including Stripe, PayPal, SSLCommerz, Razorpay, Square, Coinbase, Flutterwave, Payoneer API, custom REST APIs, and more.
Whether you’re building a new system or fixing an existing integration, I ensure fast, secure, and clean implementation based on industry best practices.

Services I ProvidePayment Gateway Integration

  • Stripe (Cards, Subscriptions, Webhooks, Billing)

  • PayPal (Standard, Express Checkout, Smart Buttons)

  • SSLCommerz

  • Razorpay

  • Square

  • Flutterwave

  • Coinbase Commerce

  • Authorize.net

  • PagSeguro

  • 2Checkout

  • Custom gateway integration (API-based)


🔗 API Integration & Automation

  • REST API / JSON API integration

  • Third-party service integrations

  • Webhooks setup & validation

  • Authentication (OAuth, JWT, API Keys)

  • App-to-app communication

  • Backend automation workflows

  • Payment + Database synchronization


🛠 Platforms I Work With

  • PHP / Laravel

  • Node.js / Express.js

  • Next.js

  • React / JavaScript

  • WordPress / WooCommerce

  • Shopify (custom API apps)

  • Custom systems & dashboards


⚡ Why Choose Me?

  • 5+ years of backend & API experience

  • Secure, clean, and scalable integration

  • Fast delivery & real-time communication

  • 100% bug-free and fully tested

  • Long-term support available


📩 Let's Build Something That Works

Send me a message with your API documentation or payment provider details — I’ll analyze your requirements and recommend the best solution before starting.

About

$12/hr Ongoing

Download Resume

Need reliable API integration or a secure payment gateway for your website or app? I specialize in integrating modern payment systems and custom APIs to help businesses accept payments smoothly, automate workflows, and deliver a seamless user experience.

I integrate a wide range of solutions including Stripe, PayPal, SSLCommerz, Razorpay, Square, Coinbase, Flutterwave, Payoneer API, custom REST APIs, and more.
Whether you’re building a new system or fixing an existing integration, I ensure fast, secure, and clean implementation based on industry best practices.

Services I ProvidePayment Gateway Integration

  • Stripe (Cards, Subscriptions, Webhooks, Billing)

  • PayPal (Standard, Express Checkout, Smart Buttons)

  • SSLCommerz

  • Razorpay

  • Square

  • Flutterwave

  • Coinbase Commerce

  • Authorize.net

  • PagSeguro

  • 2Checkout

  • Custom gateway integration (API-based)


🔗 API Integration & Automation

  • REST API / JSON API integration

  • Third-party service integrations

  • Webhooks setup & validation

  • Authentication (OAuth, JWT, API Keys)

  • App-to-app communication

  • Backend automation workflows

  • Payment + Database synchronization


🛠 Platforms I Work With

  • PHP / Laravel

  • Node.js / Express.js

  • Next.js

  • React / JavaScript

  • WordPress / WooCommerce

  • Shopify (custom API apps)

  • Custom systems & dashboards


⚡ Why Choose Me?

  • 5+ years of backend & API experience

  • Secure, clean, and scalable integration

  • Fast delivery & real-time communication

  • 100% bug-free and fully tested

  • Long-term support available


📩 Let's Build Something That Works

Send me a message with your API documentation or payment provider details — I’ll analyze your requirements and recommend the best solution before starting.

Skills & Expertise

API DevelopmentAPI IntegrationsBack End DevelopmentCommunications TechnologyContent Management SystemsFront End DevelopmentPayment Gateway IntegrationPHPSMSSocial Networking DevelopmentUser Experience DesignWeb DesignWeb DevelopmentWeb HostingWeb ManagementWeb Servers

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