You will get subscription billing engine with usage metering, proration & dunning
Project details
I'll build a production-grade subscription billing system that handles the complex scenarios most developers get wrong: mid-cycle plan changes, prorated upgrades/downgrades, failed payment recovery, and usage-based billing.
As lead developer at SubscriptionFlow I've architected billing systems processing millions in recurring revenue. I understand the edge cases that break billing: timezone issues, proration math, grace periods, and revenue recognition.
What you'll get:
Subscription lifecycle management (trials, active, paused, cancelled)
Flexible pricing: flat-rate, tiered, or usage-based metering
Automatic proration on plan changes
Dunning management with smart retry logic
Customer self-service portal
Admin dashboard with MRR/churn analytics
Invoice generation and payment history
Webhook handling for real-time payment events
Tech stack: Laravel, Vue.js, MySQL, Redis, Stripe Billing, AWS SQS
Why hire me: I don't just integrate Stripe — I build the business logic layer that handles real-world billing complexity. Your finance team will thank you.
As lead developer at SubscriptionFlow I've architected billing systems processing millions in recurring revenue. I understand the edge cases that break billing: timezone issues, proration math, grace periods, and revenue recognition.
What you'll get:
Subscription lifecycle management (trials, active, paused, cancelled)
Flexible pricing: flat-rate, tiered, or usage-based metering
Automatic proration on plan changes
Dunning management with smart retry logic
Customer self-service portal
Admin dashboard with MRR/churn analytics
Invoice generation and payment history
Webhook handling for real-time payment events
Tech stack: Laravel, Vue.js, MySQL, Redis, Stripe Billing, AWS SQS
Why hire me: I don't just integrate Stripe — I build the business logic layer that handles real-world billing complexity. Your finance team will thank you.
Programming Languages
PHP, JavaScript, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$3,500
|
Advanced
$7,000
|
|---|---|---|---|
| Delivery Time | 10 days | 25 days | 45 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 10 | ||
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$200 - $1,000
Additional Page
(+ 5 Days)
+$500
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JH
James H.
May 30, 2022
Five a Side App Development
JH
James H.
May 9, 2022
pay per hour
About Ali
Senior Full-Stack AI Engineer | SaaS, Automation & AI Solutions
Gujranwala, Pakistan - 11:31 am local time
As a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫, I specialize in designing and developing 𝐞𝐧𝐝-𝐭𝐨-𝐞𝐧𝐝 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 that combine powerful user experiences, scalable backend architectures, AI integrations, and business process automation.
With 𝟕+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 in 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐒𝐚𝐚𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐀𝐈 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, and 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧, I have successfully delivered 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐭𝐨𝐨𝐥𝐬, 𝐂𝐑𝐌 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, and custom business solutions that streamline operations and accelerate growth.
I build modern applications using 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐕𝐮𝐞.𝐣𝐬, 𝐍𝐮𝐱𝐭.𝐣𝐬, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐋𝐚𝐫𝐚𝐯𝐞𝐥, 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋, and 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, while integrating cutting-edge AI technologies including 𝐎𝐩𝐞𝐧𝐀𝐈, 𝐂𝐥𝐚𝐮𝐝𝐞, 𝐆𝐞𝐦𝐢𝐧𝐢, 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧, 𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬, 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬, and 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈.
My focus is on creating 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐟𝐚𝐬𝐭, 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐚𝐧𝐝 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 built for long-term success.
⚡ 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐈𝐧𝐜𝐥𝐮𝐝𝐞𝐬:
✔️ Full-Stack Development
✔️ SaaS Development
✔️ AI Applications
✔️ AI Agents & Automation
✔️ OpenAI, Claude & Gemini Integration
✔️ RAG & Vector Databases
✔️ CRM Automation
✔️ REST APIs & GraphQL
✔️ Payment Integrations
✔️ Cloud & DevOps
✔️ Performance Optimization
✔️ Database Design & Architecture
✔️ Third-Party API Integrations
✔️ Authentication & Security
✔️ Scalable System Architecture
🔷 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞?
✅ End-to-End Product Development
✅ Strong AI + Full-Stack Expertise
✅ Clean, Scalable & Maintainable Code
✅ Excellent Communication & Project Ownership
✅ Fast Delivery with High Quality Standards
✅ Long-Term Technical Partnership
📉 𝐅𝐚𝐜𝐢𝐧𝐠 𝐓𝐡𝐞𝐬𝐞 𝐂𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞𝐬?
❌ Need a scalable SaaS application?
❌ Looking to integrate AI into your product?
❌ Want to automate manual business processes?
❌ Need robust APIs and backend systems?
❌ Struggling with application performance and scalability?
🌟 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐏𝐨𝐰𝐞𝐫𝐟𝐮𝐥
✔️ AI-Powered SaaS Platforms
✔️ Custom Web Applications
✔️ AI Agents & Chatbots
✔️ Workflow Automation Systems
✔️ Scalable Backend Architectures
✔️ High-Performance Frontend Experiences
✔️ Enterprise Integrations & APIs
If you're looking for a Senior Full-Stack AI Engineer who can transform ideas into production-ready applications while leveraging the latest AI technologies, let's connect and discuss your project.
🔑 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬
Senior AI Engineer, AI SaaS Developer, SaaS Architecture, Multi-tenant SaaS, AI Automation Engineer, AI Agent Developer, LLM Integration Specialist, OpenAI API, Claude AI, Gemini AI, LangChain, RAG Systems, Vector Databases, Pinecone, Weaviate, FAISS, Workflow Automation, CRM Automation, GoHighLevel, n8n, Zapier, Make automation, Full-Stack SaaS Developer, Scalable Backend Architect, API Integration Specialist, Microservices Architecture, Cloud Applications, DevOps CI CD, Business Process Automation, Enterprise Software Developer
Steps for completing your project
After purchasing the project, send requirements so Ali can start the project.
Delivery time starts when Ali receives requirements from you.
Ali works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Architecture
Review your requirements, analyze your existing codebase, and create a billing architecture document outlining database schema, subscription states, and billing flow diagrams.
Core Billing Engine
Build the subscription management core: plans, pricing tiers, customer subscriptions, and state machine for subscription lifecycle (active, paused, cancelled, past_due).