I will build custom API integrations, stripe and payment gateway integration

D
donaldgran
D
donaldgran
Donald G
build custom API integrations, stripe and payment gateway integration
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build custom API integrations, stripe and payment gateway integration

About this gig

Need to connect your apps, automate your workflows, or integrate secure online payments? You're in the right place.


I help businesses build reliable, scalable API integrations that allow different platforms to communicate seamlessly. Whether you're launching a new product, improving an existing system, or automating business processes, I'll deliver a clean, well-documented integration tailored to your needs.


What I can help you with

  • Custom REST & GraphQL API integrations
  • Stripe payment integration
  • PayPal, Square, Razorpay, Flutterwave, Paystack, M-Pesa, and other payment gateways
  • Payment processing, subscriptions, and recurring billing
  • Webhooks and real-time event handling
  • OAuth, API authentication, and secure token management
  • Third-party API integrations (CRM, ERP, CMS, SaaS platforms)
  • Order, customer, and inventory synchronization
  • API troubleshooting, debugging, and performance optimization
  • Custom backend development for API workflows


Whether you need to integrate Stripe into your website, connect multiple platforms through APIs, or automate data flow between systems, I can help you build a dependable solution that saves time and improves efficiency.


  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Operating systems
    • Databases

  • Frontend framework

    • Angular
    • AngularJS
    • Flutter
    • Next.js
    • Svelte

  • Backend framework

    • Django
    • Laravel
    • Express.js
    • FastAPI
    • Next.js

Get to know Donald G

Donald G
5.0(4)
  • FromUnited States
  • Member sinceJan 2025
  • Avg. response time1 hour
  • Last delivery6 months

  • Languages

    English
Hello there! I'm Donald, your data whisperer and analytical storyteller. I don’t just analyze data—I bring it to life! With a deep understanding of data science and a knack for creative visualization, I transform raw numbers into narratives that resonate. Whether it's uncovering hidden patterns, predicting trends, or crafting visually stunning dashboards that captivate. Using tools like Python, R, excel, spss, stata, sas, Power BI, and Tableau to craft insights that not only inform but inspire.

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