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Fiverr Pro
English
$
USD
I will do custom API development and API integration
Safi
About this gig
Scalable software starts with solid API Development.
Stop settling for fragile connections. You need secure API Integration and a backend architecture engineered to handle real production loads without breaking.
I am Safi, a Full-Stack Developer with 8+ years of experience. Whether you run a legacy PHP/Laravel system or a modern Node.js app, I deliver the robust API Development your business needs to scale.
The Solutions I Engineer:
- Payment Gateways: Stripe, PayPal, and Paddle. I handle the complex webhooks and recurring billing logic so you actually get paid without errors.
- CRM & Automations: Seamlessly sync your data with HubSpot, Salesforce, and Twilio to eliminate manual work.
- Custom Architecture: Secure REST API backends built from scratch, featuring JWT authentication and clear documentation.
- E-Commerce: Custom Shopify connectors and inventory syncs.
Most developers just "connect" endpoints and hope for the best. I ensure your data is validated, security headers are tight, and error handling is ready for the real world.
Ready for a backend that works? Send me a message with your requirements. Lets architect a solution that fits your business.
Get to know Safi
Safi
Experienced Full Stack Developer
- FromPakistan
- Member sinceDec 2014
- Avg. response time6 hours
- Last delivery1 month
Languages
English
Developer turning complex ideas into live products. For the past 8 years, I've been building scalable SaaS platforms, custom AI tools, and autonomous agents that handle the heavy lifting.
My sweet spot? Next.js, Node.js, and AI automation through n8n workflows. I architect systems that won't break when you scale, and I build them fast without cutting corners on security.
If you've got a ambitious idea; a complex web app, a workflow that's eating your time, or an AI integration that others said was "too complicated" - I'm your person.
My Portfolio
Other Software Development Services I Offer
FAQ
Will my team understand how to use the API you build?
Absolutely. For Standard and Premium orders, I include clear, industry-standard documentation (usually Swagger/OpenAPI) so your frontend developers know exactly how to connect to the endpoints I build.
How do you handle security? I can't afford a data breach.
I take security personally. I implement robust authentication (JWT, OAuth2, API Keys), rate limiting to stop spam, and strict input validation to block SQL injection. Your data stays locked down.
Can you handle complex payment flows (Subscriptions, Refunds)?
Yes. I set up the full lifecycle for Stripe/PayPal/Paddle, including webhooks to verify transactions server-side, recurring billing logic, and handling failed payments so you don't lose revenue.
Does this Gig include the frontend design (React/HTML)?
This Gig is strictly for Backend API Development and logic. However, since I am a Full-Stack developer, I can build the frontend interface for you as a separate custom offer. Just message me to discuss the full scope.
I have an old PHP/Laravel site. Can you work on it without breaking it?
Yes. I know how to refactor and extend older codebases safely. Whether you need to add a modern API (like Stripe or OpenAI) or fix a bug in an old framework, I can handle it without disrupting your live business.
My project is sensitive. Will you sign an NDA?
Absolutely. I work with enterprise data regularly and respect your IP. Send over your NDA before we share any code or credentials, and I’ll sign it.
