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You will get a third-party API integrated into your app, Stripe, Twilio, or any REST API

Smit P.Status: Offline
Smit P.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Smit, priced and ready to go.
Smit P.Status: Offline
Smit P.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Smit, priced and ready to go.

Project details

Your app needs to talk to Stripe, Twilio, OpenAI, or another service, and you need it done right the first time, not patched and prayed.

I've seen bad integrations, silent failures, hardcoded keys, no error handling. I build the opposite. My project FIMS runs live across 3 manufacturing facilities, handling real-time sync and 40+ API endpoints daily. That's my standard.

APIs I integrate:
• Payments: Stripe, Razorpay, PayPal
• Communication: Twilio, SendGrid, Firebase
• AI: OpenAI, Gemini, Claude
• Auth: Google OAuth, GitHub OAuth
• Storage: AWS S3, Cloudinary
• Maps: Google Maps, Mapbox
• Any REST or GraphQL API

What you get:
• Clean, production-ready code
• Secure credential handling, no hardcoded keys
• Error handling that won't crash your app
• Webhook setup if required
• Full testing including failure states
• Clear documentation via GitHub

Message me with which API you need, I'll tell you exactly how I'll integrate it.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security
What's included
Service Tiers Starter
$30
Standard
$60
Advanced
$100
Delivery Time 2 days 4 days 7 days
Number of Revisions
124
Design Customization
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-
-
Content Upload
-
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-
Responsive Design
-
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Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$15 - $30
Additional Revision
+$10

Frequently asked questions

Smit P.Status: Offline

About Smit

Smit P.Status: Offline
Full-Stack Engineer | Production SaaS & Real-Time Systems
Ahmedabad, India - 5:17 pm local time
Most developers hand you working code and disappear. I hand you a system that runs in production, doesn't break at 2am, and that you actually understand when it's delivered.

My flagship build is FIMS (Factory Inventory Management System), is actively used by 3 manufacturing facilities every day. It handles real-time inventory sync via SocketIO, 40+ REST APIs with JWT authentication, Docker-based deployments, and role-based access control. It's not a demo. It's running right now.

Here's what you get when you work with me:

→ Full-stack systems built with React 18, Node.js, Express, PostgreSQL

→ Real-time features using SocketIO (live dashboards, notifications, sync)

→ REST APIs with proper auth, error handling, and documentation

→ Docker deployments you can actually maintain

→ 80%+ test coverage so bugs get caught before your users do

→ CI/CD pipelines via GitHub Actions — push to deploy, no babysitting required

I have time, energy, and hunger that senior developers charging 5x my rate simply don't. I treat every project like it's going on my permanent record, because on Upwork, it is.

If you want clean code, honest timelines, and someone who communicates before problems happen, let's talk.

Steps for completing your project

After purchasing the project, send requirements so Smit can start the project.

Delivery time starts when Smit receives requirements from you.

Smit works on your project following the steps below.

Revisions may occur after the delivery date.

Review API documentation

I study your API docs and existing codebase first. No guessing, no assumptions, I understand exactly what needs to connect before writing a single line.

Build the integration

I build the integration cleanly, proper auth, secure credential handling, no hardcoded keys, and error handling that won't crash your app silently.

Review the work, release payment, and leave feedback to Smit.