You will get Fix or Build Your SaaS Billing with Stripe (Subscriptions, Webhooks)
Top Rated
Project details
Stripe billing is where many SaaS products break — and start losing money.
Failed payments, incorrect subscriptions, broken webhooks, and inconsistent states create support issues and block growth.
This project helps you fix or build a reliable Stripe billing system that works correctly in production.
You get a fully working subscription flow integrated into your SaaS:
• Subscriptions (trial, upgrade, cancel)
• Stripe Checkout & Customer Portal
• Webhooks with real-time sync and error handling
• Clean integration with your users, roles, and database
What’s included:
• Stable billing logic (no edge-case surprises)
• Tested controllers, routes, and integration flows
• Clear structure your team can extend safely
• Optional add-ons: multi-tenant billing, usage-based pricing
Ideal for:
• SaaS founders launching subscriptions
• Teams fixing broken or unreliable Stripe setups
• Products preparing for real users and revenue
Outcome:
A production-ready Stripe billing system you can trust — reducing errors, support load, and lost revenue.
Failed payments, incorrect subscriptions, broken webhooks, and inconsistent states create support issues and block growth.
This project helps you fix or build a reliable Stripe billing system that works correctly in production.
You get a fully working subscription flow integrated into your SaaS:
• Subscriptions (trial, upgrade, cancel)
• Stripe Checkout & Customer Portal
• Webhooks with real-time sync and error handling
• Clean integration with your users, roles, and database
What’s included:
• Stable billing logic (no edge-case surprises)
• Tested controllers, routes, and integration flows
• Clear structure your team can extend safely
• Optional add-ons: multi-tenant billing, usage-based pricing
Ideal for:
• SaaS founders launching subscriptions
• Teams fixing broken or unreliable Stripe setups
• Products preparing for real users and revenue
Outcome:
A production-ready Stripe billing system you can trust — reducing errors, support load, and lost revenue.
Programming Languages
PHP, JavaScript, PythonCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$300
|
Standard
$900
|
Advanced
$1,900
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 2 | 3 | 5 |
Design Customization | - | - | - |
Content Upload | |||
Responsive Design | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Multi-Tenant Billing
(+ 3 Days)
+$600
AI Usage-Based Plans
(+ 3 Days)
+$1,000
Custom Billing Dashboard
(+ 2 Days)
+$700Frequently asked questions
34 reviews
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SZ
Shu Z.
Jun 30, 2026
Fintech SaaS development
GS
Gaurav S.
Jul 4, 2025
Python API multi-tenant solution in aws
TP
Tim P.
Aug 9, 2024
SaaS Improvements: OpenAI ChatGPT integrations
Sergei and his team, BAUART are excellent to work with. I had a fairly complex project SAAS app (mindcrate.io) that had been botched by another dev who was sloppy and delivered poorly, security flawed code. I first reached out to Sergei to help me audit the code and determine why specific features weren't working. He gave me a full breakdown of what needed to be fixed and a executed a repair plan. Ultimately, I decided to overhaul the SAAS with a new UI and new features that Sergei, Konstantin and Anton diligently worked to deliver. It took longer than I would have liked, but I am very proud of the work and what they helped me bring to life.
Great team, smart guys and willing to go the extra mile. I highly recommend Sergei and BAUART for any of your hardcore SAAS, web app or AI projects. These guys are legit!
Great team, smart guys and willing to go the extra mile. I highly recommend Sergei and BAUART for any of your hardcore SAAS, web app or AI projects. These guys are legit!
TP
Tim P.
Feb 2, 2024
SaaS Improvement by AI: OpenAI ChatGPT Fixes and Integration
Sergei and his team are great to work with. I used them on a quick trial run to take over from another developer. They did a great job of fixing security issues, setting up the enviroment correctly and refactoring the code to get it up to professional level quality. Pushing forward with them on more sprints to help bring my product to an enterprise level. Highly recommended!!!!
RB
Rana B.
Nov 7, 2023
SaaS developing - frontend and backend on Laravel, Vue.js, Docker, Node.js, Python
Great team with extensive expertise and commitment to our product vision
About Sergei
SaaS Developer | Scalable Architecture, Stripe Billing, AI Integration
100%
Job Success
Yerevan, Armenia - 4:38 pm local time
Slow performance, unstable releases, scaling issues, constant rewrites — that’s what actually kills growth.
I help B2B SaaS teams build stable, predictable, and scalable platforms you can rely on — both at launch and as you grow.
✅ What I do
I design and develop production-ready SaaS systems where stability, performance, and scalability are not afterthoughts — they are built into the core.
What this means in practice:
🚀 MVPs that don’t need to be rebuilt when you reach real users
⚙️ Robust backend architecture (multi-tenant, RBAC, clean data models)
📈 Systems that scale predictably — without breaking under load
🛡️ Reliable deployments with CI/CD, monitoring, and rollback strategies
🧠 AI integrations that are stable in production, not just demos
⚙️ Core expertise
- Backend: Laravel, Python, Node.js, PostgreSQL, Redis
- Frontend: Vue, React
- Infrastructure: Docker, AWS, GCP, CI/CD (GitLab)
- SaaS architecture: Multi-tenancy, Role-based access, Stripe billing
- AI: OpenAI, LangChain, RAG (production-grade integrations)
🧩 Why clients work with me
1) I focus on long-term system reliability, not quick hacks
2) I build with scaling in mind from day one
3) I help avoid costly rework and architectural mistakes
4) I communicate clearly and work as part of your team — not as a black box
📞 If you're building a SaaS product and want to be confident it will hold under real usage — let's talk.
I offer a free 40-minute strategy call where we can:
- identify architectural risks
- evaluate your current system (or idea)
- outline a clear, scalable path forward
Message me to get a clear technical direction for your SaaS — including risks, architecture approach, and next steps.
Steps for completing your project
After purchasing the project, send requirements so Sergei can start the project.
Delivery time starts when Sergei receives requirements from you.
Sergei works on your project following the steps below.
Revisions may occur after the delivery date.
Review & Risk Check
Review your codebase and Stripe setup to identify issues and risks.
Billing Logic Setup
Configure plans, trials, webhooks, and subscription logic.