I will integrate complex apis, stripe, xendit, or oauth into your backend

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Alingga M

Level 1

About this gig

Payment and third-party integrations can make or break your application. With over 6 years of backend experience, I specialize in wiring up complex, secure, and idempotent API integrations that don't fail under pressure.


What I can integrate for you:

  • Payment Gateways: Stripe (Subscriptions, Apple/Google Pay, Webhooks), Xendit, Midtrans, and custom local gateways.
  • Authentication: Strava OAuth, Google Sign-in, Firebase Auth, and secure session/token handling.
  • Communication & Mail: Automated email flows (Brevo, SendGrid), SMS, and push notifications.
  • Third-Party APIs: Any REST, GraphQL, or SOAP service.

Why work with me? I ensure your webhooks are strictly validated, your data flow is predictable, and your user experience (like tokenization flows and post-payment automation) is seamless.

Lets secure your apps data flow. Message me to discuss your specific integration needs.

Get to know Alingga M

Alingga M

Fractional CTO, Lead Backend Engineer, NestJS, OpenAI, API Integrations

4.9(3)

Level 1

  • FromIndonesia
  • Member sinceNov 2024
  • Avg. response time2 hours
  • Last delivery4 days
  • Languages

    English, Indonesian
Hi, I’m Alingga, a Senior Backend Architect with 6+ years of experience building production-ready infrastructure. I don’t just code; I design resilient systems for SaaS, marketplaces, and CRMs. Expertise: - Stack: NestJS, Node.js, GraphQL, PostgreSQL, MongoDB. - Cloud/DevOps: AWS, Docker, DigitalOcean, CI/CD. - Specialties: OpenAI, Cost-control caching, Stripe/Xendit, Google Maps. I focus on secure RBAC and clean architecture so your app thrives in production. I specialize in milestone-based delivery for large platforms. Message me to build your system the right way.

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