I will integrate stripe, paypal or any api and build your nodejs backend


About this gig
Need to connect your app to Stripe, a CRM or any other API? Or a solid backend that's easy to maintain?
I'm a senior software engineer (10 years of experience) focused on backends, APIs and deployments. I write clean, tested code you can keep building on.
What I do:
- Integrate third-party APIs: Stripe, PayPal, OpenAI, CRMs, maps, shipping, email
- Reliable webhooks with retries and logging
- REST APIs with Node.js (Express, NestJS) and PostgreSQL
- Authentication, roles and secure handling of API keys
- Rust for performance-critical services when it's worth it
- Docker deployments with SSL on your server or cloud
How it works:
- Tell me what you need to connect or build
- I confirm scope and price before you order
- I build it, test it and document how it works
You get the source code and a short guide to run it.
I speak English and Spanish.
Get to know Edinson
Senior Software Engineer, Fix and Secure AI Built Apps
- FromColombia
- Member sinceApr 2020
- Avg. response time2 hours
- Last delivery8 months
Languages
Spanish, English
Other Software Development Services I Offer
FAQ
Do I own the code?
Yes. You get the full source code when the order is delivered.
Can you work on my existing backend?
Yes. Send me the repo first. If the code needs a bigger fix before adding features, I'll tell you before you order.
Who pays for APIs and hosting?
You do. Third-party accounts, API plans and servers stay in your name, so you keep control.
Payments: is it ready for real money?
I build and test in sandbox/test mode first. Going live, your account verification and legal requirements are on your side; Stripe and PayPal handle card data.
What if a third-party API changes or goes down?
That's outside my control. I add error handling and logs so problems are visible, and I can update it as a new order.
Is it 100% secure?
I follow security best practices, but no one can honestly guarantee 100%. Keeping servers and dependencies updated after delivery is your responsibility, or part of a monthly plan.
What do revisions cover?
Adjustments to what we agreed, not new endpoints, integrations or features.
What if my project is bigger?
Message me and I'll send a custom offer split into milestones.

