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$
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I will integrate razorpay stripe paypal payment gateway in app website
Nikhil Kumar
5.0
5.0
Gig Summary
About this gig
Need payments that work on the first live transaction? I integrate payment gateways into Android apps and websites, with the security details done properly.
What I integrate
- Razorpay, Stripe, PayPal, PhonePe, Cashfree, Instamojo, UPI
- Android (Kotlin/Java) and web (Laravel/PHP)
- Webhooks, subscriptions, refund handling (Premium)
How I keep it secure
- Orders created on your server, never in the app
- Webhook signature verification
- Secret keys kept out of the app code
- Error and failed-payment handling
What I need from you
- Your gateway test keys (never live keys)
- Access to the app or site code
- Your payment flow in 2-3 lines
How it works
- Message me your requirements
- I confirm scope and price
- I deliver tested, commented code in 2 days
- Revisions within the agreed scope
Clear communication in English and Hindi. Message me before ordering so we can confirm your gateway and setup.
Get to know Nikhil Kumar
Nikhil Kumar
Professional Android Developer and Full Stack Web Developer and API Expert
- FromIndia
- Member sinceAug 2022
- Avg. response time1 hour
- Last delivery3 weeks
Languages
English, Hindi, Spanish, German
Welcome! I'm Nikhil Kumar, a professional Android and Full-Stack developer with 4+ years of hands-on experience.
I specialize in building feature-rich Android apps (Kotlin, Java, Jetpack Compose, Firebase, REST APIs) and secure full-stack web solutions (PHP, Laravel, CodeIgniter).
My biggest strength is seamless payment gateway integration — Stripe, Razorpay, PayPal, UPI, PhonePe, Cashfree & custom solutions in both apps and websites.
I deliver clean, secure, scalable code from bug fixing to deployment. Ready to turn your idea into a working product? Let's build something great together!
FAQ
Do you need my live API keys?
No. I build and test with your test keys, and you add the live keys yourself at launch.
What if my gateway account is not approved yet?
I can build and test in sandbox mode while approval is pending.
Can you handle refunds and failed payments?
Yes, in the Premium package, including webhook-based status updates.
Do you support both app and website?
Yes: Android in Kotlin or Java, and websites in Laravel or PHP.
Reviews
9 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (1) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
V 
vibhasankar
India
Nikhil understood our requirements so well, was extremely proactive and efficient. Also super quick with his work. He's very intelligent and understands your need with just a quick brief and executes amazingly well. We absolutely recommend him!! Thank you so much Nikhil!
$50
Price
4 days
Duration
D 
Seller's Response
Helpful?K kunjansingh589
Nepal
I had the pleasure of working with Nikhil to integrate a payment gateway into our application, and I couldn’t be more satisfied with the results. Nikhil demonstrated a high level of expertise, efficiency, and professionalism throughout the process. **Overall, I highly recommend nikhil for any payment...
$50-$100
Price
4 days
Duration
D Seller's Response
Helpful?R 
rainamahautiere
Canada
The best developer I've ever encountered. We had just bought a business and struggled to find a developer to work through our challenges. Nikhil was incredibly patient, didn’t mind the time zone differences, and tackled every issue that came up along the way. He’s highly professional and kept us informed...
$50
Price
1 day
Duration
D Seller's Response
Helpful?I imitiazuddinmoh
India
Exceptional work.
$50
Price
1 day
Duration
D Seller's Response
Helpful?S swapnildighe
India
job was well understood and executed I am satisfied
$50
Price
2 days
Duration
D Seller's Response
Helpful?
Reviews
9 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (1) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
V vibhasankar
India
Nikhil understood our requirements so well, was extremely proactive and efficient. Also super quick with his work. He's very intelligent and understands your need with just a quick brief and executes amazingly well. We absolutely recommend him!! Thank you so much Nikhil!
$50
Price
4 days
Duration
D Seller's Response
Helpful?K kunjansingh589
Nepal
I had the pleasure of working with Nikhil to integrate a payment gateway into our application, and I couldn’t be more satisfied with the results. Nikhil demonstrated a high level of expertise, efficiency, and professionalism throughout the process. **Overall, I highly recommend nikhil for any payment...
$50-$100
Price
4 days
Duration
D Seller's Response
Helpful?R rainamahautiere
Canada
The best developer I've ever encountered. We had just bought a business and struggled to find a developer to work through our challenges. Nikhil was incredibly patient, didn’t mind the time zone differences, and tackled every issue that came up along the way. He’s highly professional and kept us informed...
$50
Price
1 day
Duration
D Seller's Response
Helpful?I imitiazuddinmoh
India
Exceptional work.
$50
Price
1 day
Duration
D Seller's Response
Helpful?S swapnildighe
India
job was well understood and executed I am satisfied
$50
Price
2 days
Duration
D Seller's Response
Helpful?
