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Fiverr Pro
English
$
USD
I will integrate stripe or paypal payment gateway with webhooks
Hanif
About this gig
Take payments without double charges, missed webhooks or refunds that never reconcile. I integrate payment gateways the way production systems need them.
What you get:
- Hosted checkout or tokenized fields, so card data never touches your servers (PCI DSS SAQ-A scope)
- 3-D Secure / SCA for EU and UK customers
- Signed, idempotent webhooks with safe retries
- Refunds, subscriptions and reconciliation reports
- Works with ASP.NET Core, Node.js or your existing backend, on PostgreSQL or SQL Server (MSSQL)
Why me: my retail SaaS, used by 100+ shops, runs a double-entry ledger where every payment is protected by idempotency keys and distributed locks, so nothing is posted twice.
Tell me what you sell and where, and I'll recommend the right package.
Respect third-party rights
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Get to know Hanif
Hanif
Software Engineer : FSharp, CSharp, Dot NET
- FromBangladesh
- Member sinceFeb 2019
- Avg. response time1 hour
- Last delivery7 months
Languages
Bengali, English
Senior Software Engineer with 5+ years of experience at a YC startup in Bangladesh, where I built scalable operational, logistics, and marketing platforms. I specialize in full-stack development, AI integration, and system optimization. I’ve mentored junior engineers and led cross-functional projects that drive business efficiency.
I’m passionate about clean architecture, performance tuning, and delivering results that exceed expectations.
My Portfolio
FAQ
Is the integration PCI DSS compliant?
I build it so card data never touches your servers, using hosted checkout or tokenized fields. That keeps you in the smallest PCI scope (SAQ-A).
How do you prevent double charges?
Idempotency keys on every payment request, signed webhooks processed exactly once, and a clear payment state machine.
Can you fix my existing integration?
Yes. I review what you have, fix webhook and reconciliation issues, and add tests so it stays fixed.
Which gateways do you support?
Stripe and PayPal most often, plus local gateways and mobile wallets that offer an API. Tell me your country and I'll suggest the best fit.
Which tech stack do you work with?
ASP.NET Core (.NET) or Node.js on the backend, with PostgreSQL or SQL Server (MSSQL). I can also plug into your existing backend.
Do I need my own gateway account?
Yes. You create the Stripe or PayPal account in your business name so payouts go to you. I help you set it up and keep keys secure.
