You will get a stripe payment integration expert for your web and mobile application.
Project details
I architect full-scale Stripe integrations, not just APIs, but complete billing infrastructure. I handle everything from one-time payments to recurring billing, usage-based pricing, webhooks, invoicing, refunds, tax handling, and payouts. My solutions are modular, secure, and built using Stripe's core APIs including PaymentIntent, SetupIntent, Customer, Subscription, and Product.
I simulate real billing behavior using Stripe Test Clock, enabling time travel across billing cycles, retries, proration, and cancellation, essential for staging environments and edge-case testing. I implement robust subscription logic with trials, metered billing, invoice previews, automatic retry rules, and upgrade/downgrade flows with accurate proration. I support complete invoice automation from creation and email delivery to PDF generation and customer access via the Stripe Billing Portal.
For marketplace and multi-vendor platforms, I implement Stripe Connect, including destination charges, platform fee configurations, and account onboarding via OAuth or Express flows. What you get is not just code — but a tested, secure, and scalable payment infrastructure built for real business.
I simulate real billing behavior using Stripe Test Clock, enabling time travel across billing cycles, retries, proration, and cancellation, essential for staging environments and edge-case testing. I implement robust subscription logic with trials, metered billing, invoice previews, automatic retry rules, and upgrade/downgrade flows with accurate proration. I support complete invoice automation from creation and email delivery to PDF generation and customer access via the Stripe Billing Portal.
For marketplace and multi-vendor platforms, I implement Stripe Connect, including destination charges, platform fee configurations, and account onboarding via OAuth or Express flows. What you get is not just code — but a tested, secure, and scalable payment infrastructure built for real business.
What's included $500
These options are included with the project scope.
$500
- Delivery Time 14 days
- Number of Revisions 2
- Source Code
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GO
Glen O.
Sep 6, 2025
Development work for a SaaS platform
Mudassar is a diligent and capable developer who is an asset to any team.
He is responsive and communicative and will provide suggestions to help make things better.
He is able to quickly grasp an understanding of the project and if he is unsure of anything, he will perform research and due diligence before commencing the activity.
He is responsive and communicative and will provide suggestions to help make things better.
He is able to quickly grasp an understanding of the project and if he is unsure of anything, he will perform research and due diligence before commencing the activity.
About Muddasar
Full Stack Developer | Ruby on Rails & React | SaaS Platforms
Lahore, Pakistan - 1:27 pm local time
I'm a full stack engineer with two years of production experience in Ruby on Rails and React, shipping real features for real B2B SaaS products. At CoachVantage I built a complete SMS notification system using Twilio from scratch. Appointment confirmations, automated reminders at 48 hours, 24 hours, and 1 hour before, cancellations and reschedules, all fully automated with consent management, credit based billing, and retry logic. Zero double charges across the entire system.
I also fixed critical Stripe and PayPal billing bugs that were causing duplicate invoices for real customers, integrated Hasura GraphQL with a Rails backend cutting data fetch time by 45%, and reduced API response times by 40% using Redis caching under heavy production load.
I work across the full stack. I understand why features exist, not just how to build them. When I take on a project I own it completely. Right questions upfront, clear communication throughout, no disappearing mid project.
My core stack: Ruby on Rails, React, PostgreSQL, Stripe, Twilio, Sidekiq, Redis, REST APIs, GraphQL.
If your project involves any of these, lets talk.
Steps for completing your project
After purchasing the project, send requirements so Muddasar can start the project.
Delivery time starts when Muddasar receives requirements from you.
Muddasar works on your project following the steps below.
Revisions may occur after the delivery date.
Stripe Setup & API Keys
Connect your Stripe account and test credentials securely.
Subscription Logic Setup
Define plans, pricing, and billing cycles as per your model.