You will get a Subscription & Billing System with RevenueCat and Stripe
Project details
You will get a fully integrated subscription and billing system that handles payments seamlessly across web, iOS, and Android. With deep expertise in Stripe and RevenueCat, I build robust billing infrastructure that includes subscription tiers, billing portals, dunning logic, webhook event handling, and in-app purchase entitlements. Whether you're launching a new SaaS product or upgrading an existing mobile app's monetization, I deliver clean, tested, and scalable billing code that keeps revenue flowing and reduces churn. Every integration is documented and production-ready from day one.
What's included
| Service Tiers |
Starter
$600
|
Standard
$1,800
|
Advanced
$4,000
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 30 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
About Porter
Systems Architect & RevOps Engineer | Autonomous Revenue Engines
Riverton, United States - 7:04 pm local time
I engineer the invisible operational infrastructure that scales B2B companies. As the founder of WebDevAuto, I specialize in moving businesses away from fragmented tools and shifting them toward high performance, autonomous revenue engines. I build custom solutions that bridge the gap between complex engineering and aggressive business growth.
If you are looking for a basic code monkey, I’m not your guy. If you are looking for a technical partner to architect high ROI systems, eliminate operational friction, and build custom product experiences that convert let’s talk.
Core Capabilities
RevOps & Workflow Automation: Custom built pipelines, automated lead routing, and deep system integrations that compress sales cycles and eliminate manual data entry.
Full-Stack Software Architecture: End-to-end development of rapid prototypes, AI integrated workflows, and scalable web/mobile applications.
High-Fidelity 3D Web Experiences: Next-gen interactive web development utilizing Three.js and WebGPU for immersive, highend product configuration and visualization.
B2B Growth Engineering: Designing technical infrastructure entirely focused on optimizing bottom line revenue, user retention, and data-driven ROI.
Why Work With Me?
I don't deliver feature lists; I deliver business outcomes. Every line of code or automated workflow I build is engineered with a strict focus on your operational efficiency and revenue acceleration.
If you are looking to build a high-performance web platform or scale a cross-platform subscription application, you need an architecture that is bulletproof, secure, and built to scale.
I am a Full-Stack Systems Architect specializing in combining the enterprise-grade power of .NET (C#) with the modern, high-fidelity user experiences of React and Angular. Beyond just building features, I specialize in the operational infrastructure that drives revenue—specifically integrating RevenueCat, Stripe, and native app billing ecosystems to ensure your monetization works flawlessly.
What I Bring to Your Project:
Robust Backends: ASP.NET Core (Web APIs, Minimal APIs, Microservices), Entity Framework Core, SQL Server, and PostgreSQL. I build clean, secure architectures (Clean Architecture / CQRS) that handle data efficiently.
Proficient in
Scalable Frontends: Heavy enterprise dashboards in Angular (leveraging RxJS for real time data) or rapid, high fidelity application UIs in React (Vite, Next.js).
Subscription & Billing Infrastructure: Deep expertise implementing RevenueCat SDK UIs, mapping secure webhook pipelines to sync user entitlements with your database, and setting up multi platform subscription architectures (iOS, Android, and Web).
Asynchronous Systems & Cloud: Processing high volume billing events using message brokers (RabbitMQ, Azure Service Bus) and distributed caching (Redis).
How We Can Collaborate:
Full Stack SaaS Development: Building your product from database schema to user interface.
Revenue Ecosystem Integration: Hooking up RevenueCat to your existing .NET backend so mobile purchases instantly sync with your web ecosystem.
Legacy Migration/Optimization: Upgrading older .NET codebases or rewriting fractured frontends into clean Angular or React architectures.
I focus on clean, self documenting code, type-safety across the entire stack, and strict adherence to deadlines.
Let's hop on a brief strategy call to break down your current bottlenecks and build a blueprint to automate them away. Click Invite to Job to get started.
Steps for completing your project
After purchasing the project, send requirements so Porter can start the project.
Delivery time starts when Porter receives requirements from you.
Porter works on your project following the steps below.
Revisions may occur after the delivery date.
Billing Architecture & Account Setup
We define subscription tiers, configure Stripe products and prices, set up RevenueCat if needed, and establish webhook infrastructure for real-time billing events.