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$
USD
I will integrate a payment gateway in your website
Isaac Waithaka
About this gig
Are you looking to accept mobile payments on your website? I will integrate M-Pesa, Paystack, or Flutterwave into your web application professionally and cleanly.
WHY CHOOSE ME? I am a Nairobi-based developer specializing in African payment gateways. I understand M-Pesa Daraja API deeply STK Push, C2B, webhooks, and callback handling.
WHAT YOU GET:
- M-Pesa STK Push integration
- Paystack or Flutterwave payment setup
- Webhook handling for real-time payment confirmation
- Transaction logging and error handling
- Clean, documented, maintainable code
- Node.js or Python backend
PERFECT FOR:
- E-commerce websites
- Booking and reservation systems
- Subscription platforms
- Service-based businesses
MY PROCESS:
- You share your codebase and requirements
- I build on a separate branch
- You review before anything goes live
- Clean handoff with full documentation
Message me before ordering if you have questions I respond fast and I'm easy to work with.
Let's get your payment system running today!
Get to know Isaac Waithaka
Isaac Waithaka
API Integration and Automation Developer
- FromKenya
- Member sinceSep 2021
- Avg. response time1 hour
Languages
English, Swahili
I'm a software developer based in Nairobi, Kenya, with hands-on experience building API integrations, payment systems, and automation workflows. I specialize in M-Pesa Daraja API, Paystack, Flutterwave, and Node.js backend development. I also build automation pipelines using Make.com and n8n, connecting webhooks, SMS systems, and third-party APIs into clean, scalable solutions. I deliver well-documented, maintainable code that works the first time. Whether you need a payment integration, an automated workflow, or a custom backend — I get it done right.
My Portfolio
FAQ
What do I need to provide to get started?
Your codebase or GitHub repository link, your M-Pesa Daraja API credentials or Paystack/Flutterwave API keys, and a brief description of how payments should flow in your application.
Do you work with any programming language?
I primarily work with Node.js and Python backends. If you use a different stack, message me first and I'll confirm if I can help.
Will my customers' payment data be secure?
Yes. I follow best practices including environment variables for API keys, HTTPS webhook validation, and never storing raw card data. All integrations are PCI-compliant friendly.
What if something breaks after delivery?
I offer revisions within the agreed package. I also provide clean documentation so any developer can maintain the code easily after handoff.
