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API Integration & Development

$70/hr Starting at $500

I specialize in developing and integrating robust APIs that power modern applications. Whether you need to connect with third-party services like Stripe, Twilio, or Zapier—or build custom RESTful or GraphQL APIs from scratch—I can architect secure, scalable endpoints that your frontend or third-party systems can rely on.


✅ Included in This API Integration & Development Service

🔌 Third-Party API Integrations

  • Stripe (payments, subscriptions, invoicing)

  • Twilio (SMS, voice, 2FA)

  • Zapier (workflow automation)

  • SendGrid / Mailgun

  • Google APIs (Maps, Calendar, OAuth, etc.)

  • Facebook, LinkedIn, or other social logins


⚙️ Custom API Development

  • RESTful or GraphQL API design from scratch

  • CRUD operations, pagination, filtering

  • Token-based security (JWT, OAuth 2.0)

  • Role-based access and permission logic

  • Full API documentation (Postman or Swagger)


🔐 Authentication & Security

  • API key management

  • CORS configuration

  • Rate limiting and request validation

  • Encrypted data transmission (HTTPS, TLS)


🧪 Testing & Validation

  • Unit and integration testing for APIs

  • Mock server setup for frontend collaboration

  • Error handling and logging (Sentry, Winston, etc.)


🚀 Deployment & Maintenance

  • Deploy APIs to cloud environments (AWS, Heroku, Vercel, etc.)

  • CI/CD setup for smooth updates

  • Ongoing support for endpoint changes or scaling needs


All integrations are built with maintainability and future-proofing in mind, so your system is ready to evolve.

About

$70/hr Ongoing

Download Resume

I specialize in developing and integrating robust APIs that power modern applications. Whether you need to connect with third-party services like Stripe, Twilio, or Zapier—or build custom RESTful or GraphQL APIs from scratch—I can architect secure, scalable endpoints that your frontend or third-party systems can rely on.


✅ Included in This API Integration & Development Service

🔌 Third-Party API Integrations

  • Stripe (payments, subscriptions, invoicing)

  • Twilio (SMS, voice, 2FA)

  • Zapier (workflow automation)

  • SendGrid / Mailgun

  • Google APIs (Maps, Calendar, OAuth, etc.)

  • Facebook, LinkedIn, or other social logins


⚙️ Custom API Development

  • RESTful or GraphQL API design from scratch

  • CRUD operations, pagination, filtering

  • Token-based security (JWT, OAuth 2.0)

  • Role-based access and permission logic

  • Full API documentation (Postman or Swagger)


🔐 Authentication & Security

  • API key management

  • CORS configuration

  • Rate limiting and request validation

  • Encrypted data transmission (HTTPS, TLS)


🧪 Testing & Validation

  • Unit and integration testing for APIs

  • Mock server setup for frontend collaboration

  • Error handling and logging (Sentry, Winston, etc.)


🚀 Deployment & Maintenance

  • Deploy APIs to cloud environments (AWS, Heroku, Vercel, etc.)

  • CI/CD setup for smooth updates

  • Ongoing support for endpoint changes or scaling needs


All integrations are built with maintainability and future-proofing in mind, so your system is ready to evolve.

Skills & Expertise

API DevelopmentBackend DevelopmentExpress JsExpress.jsGraphqlIntegration TestingJSONNode JsNode.jsOAuthPostman SoftwareRestfulRestful Web ServicesStripeStripe IntegrationTwilioTwilio APITwilio SDKWeb HookZapier Integrations

Related Work Collections

47 Reviews

  • Modern Business Solutions

    Modern Business Solutions says,

    Brandon, I'm truly impressed with your work on this first milestone. The infrastructure setup is clean, well-documented, and exactly what we needed. Your attention to detail and clear communication throughout the process have been excellent. The documentation you provided shows your expertise and professionalism. I appreciate how you've set us up for success with this solid foundation, and I'm excited to continue working together on the next phases of the project. Great job!

    for HIPAA-Compliant Client Mgmt Platform on May 14, 2025

  • Kenneth 385

    Kenneth 385 says,

    Steady progress with frequent and informative updates. Impressive developer!

    for Develop Background/Drug Screen Site on Mar 31, 2025

  • Kenneth 385

    Kenneth 385 says,

    Brandon has been prompt and professional through the process. The product is absolutely fantastic. I cannot say enough about the organization and skill that has gone into moving this project forward!

    for Develop Background/Drug Screen Site on Mar 09, 2025

  • Bk FinSoft

    Bk FinSoft says,

    Brandon's communication has been excellent and we look forward to working on the next phase of the project.

    for RAG and Contextual Retrieval help on Jan 30, 2025

  • Ryan 652

    Ryan 652 says,

    We are incredibly pleased with the work Brandon has done in implementing a reliable backup system for our website. His solution strikes the perfect balance between performance and storage, ensuring our data is always secure without overloading the server. Since the implementation, we no longer have to worry about running out of memory, and our system runs more efficiently than ever. His expertise, attention to detail, and proactive approach made this a seamless experience. Highly recommended for anyone looking for a top-notch gurus who delivers practical and efficient solutions!

    for Configure cPanel Backups to Optimize VPS on Jan 29, 2025

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