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Fiverr Pro
English
$
USD
I will do api integration backend api development rest api fix with node js
Usman K
Level 2
5.0
5.0
About this gig
Looking for an expert API developer to integrate, develop or fix APIs with Node.js, React.JS and Next.js?
I help businesses build secure, scalable, and reliable APIs and automate workflows to improve efficiency and ROI.
My Core Services
- Custom API development (REST, GraphQL, SOAP, XML, JSON)
- Third party API integrations
- Business automation and data synchronization
- Webhooks and real time data sync
- Bug fixing and performance optimization
- Multi store and multi platform sync
E-commerce and Payments
- Shopify and WooCommerce integrations
- Inventory, order and fulfillment automation
- Stripe, PayPal, Coinbase, Skrill, 2Checkout
- Subscription and payment systems
Messaging, AI and Automation
- WhatsApp Cloud API
- Twilio, Sendgrid, Mailchimp, Tradingview, Mapbox
- SMS and notification automation
- AI APIs: OpenAI, ChatGPT, Gemini, Claude, Hugging Face
- AI-powered chatbots and business tools
Platforms and APIs
- Google APIs, AWS, CRM systems
- Zapier, Make, n8n
- Social APIs (Facebook, Instagram, LinkedIn, Twitter, YouTube, Streaming, Music)
Why Choose Me
- Experienced Backend API developer
- Clean, production-ready code
- Cost-effective solutions
- Satisfaction guaranteed
Message me before placing an order.
Get to know Usman K
Usman K
Full Stack Web and Mobile Developer Driving the Future with AI Trends
Level 2
- FromPakistan
- Member sinceJun 2024
- Avg. response time1 hour
- Last delivery4 weeks
Languages
English, French, German, Spanish
Hi, I am Usman, a Full Stack Developer with 7+ years of shipping production SaaS platforms, AI-powered web applications, and mobile apps for clients worldwide.
I specialise in React, Next.js, Node.js, Supabase, TypeScript, API, WordPress, Shopify, and AI integrations. From MVPs to large scale platforms, I have delivered 50+ projects across healthcare, fintech, e-commerce, edtech, and SaaS.
Need a clean SaaS dashboard, AI-powered app, or mobile product built fast and right?. Message me or book a FREE consultation call and let us figure out the best approach for your project.
My Portfolio
Other Software Development Services I Offer
FAQ
What types of APIs do you work with?
I work with REST, SOAP, GraphQL, OpenAI, and third-party APIs, including social media, payment, e-commerce, and more.
Can you integrate APIs into my existing website?
Yes, I can seamlessly integrate APIs into your website or web app, ensuring smooth functionality.
Can you integrate APIs from multiple providers into a single application?
Absolutely, I have experience integrating APIs from various providers and ensuring seamless functionality across different services.
Do you provide custom API development?
Yes, I offer custom API development tailored to your specific requirements.
Do you offer support after the integration?
Yes, I offer ongoing support to ensure everything works smoothly after API integration.
Can you integrate payment gateways like Stripe or PayPal?
Yes, I can integrate popular payment APIs like Stripe, PayPal, and others into your website or app.
What’s the turnaround time for an API integration?
Turnaround time varies depending on the complexity of the integration, but I will provide an estimated time after discussing the project.
What type of frameworks do you use for API creation and integration?
I specialize in the MERN stack (MongoDB, Express.js, React, Node.js) for building and integrating APIs seamlessly.
Do you work with non-technical clients?
Yes, I provide clear communication and guidance for clients with varying technical backgrounds.
Can you integrate social media APIs like Facebook or Instagram?
Yes, I can integrate social media APIs such as Facebook, Instagram, LinkedIn, and Twitter into your project.
Reviews
7 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
U 
umer_khalid89
United States
Ongoing collaborationHonestly one of the best developers I have worked with. Knows his stuff when it comes to full stack and AI integration, delivered clean work every time without needing to be micromanaged. Communication was always clear and he flagged things before they became problems. If you have anything related to...
$50
Price
1 day
Duration
Helpful?U umer_khalid89
United States
Ongoing collaborationOnce again Usman did Quick and clean. Added a confetti animation we didn't ask for that our users actually noticed and liked. Thanks Usman.
$50
Price
2 days
Duration
Helpful?U umer_khalid89
United States
Ongoing collaborationClean webhook setup, done in under 1 and half days. Added signature verification without being asked. Good work.
$50
Price
2 days
Duration
U 
Seller's Response
Helpful?R roydixon658
United States
Usman is a pro's pro! He is extremely knowledgeable and kind. I have truly enjoyed every moment of us working together. I highly recommend his services. He gets it done!
$100-$200
Price
2 weeks
Duration
Helpful?B 
berylwebs
Nigeria
Ongoing collaborationUsman is good at what he does, he took his time to work on my project and delivered a very professional work.
$200-$400
Price
5 weeks
Duration
U Seller's Response
Helpful?
Reviews
7 reviews for this Gig
| (7) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
U umer_khalid89
United States
Ongoing collaborationHonestly one of the best developers I have worked with. Knows his stuff when it comes to full stack and AI integration, delivered clean work every time without needing to be micromanaged. Communication was always clear and he flagged things before they became problems. If you have anything related to...
$50
Price
1 day
Duration
Helpful?U umer_khalid89
United States
Ongoing collaborationOnce again Usman did Quick and clean. Added a confetti animation we didn't ask for that our users actually noticed and liked. Thanks Usman.
$50
Price
2 days
Duration
Helpful?U umer_khalid89
United States
Ongoing collaborationClean webhook setup, done in under 1 and half days. Added signature verification without being asked. Good work.
$50
Price
2 days
Duration
U Seller's Response
Helpful?R roydixon658
United States
Usman is a pro's pro! He is extremely knowledgeable and kind. I have truly enjoyed every moment of us working together. I highly recommend his services. He gets it done!
$100-$200
Price
2 weeks
Duration
Helpful?B berylwebs
Nigeria
Ongoing collaborationUsman is good at what he does, he took his time to work on my project and delivered a very professional work.
$200-$400
Price
5 weeks
Duration
U Seller's Response
Helpful?
