You will get Stripe Subscription Integration with Checkout, Customer Portal & Webhooks
Project details
I'll add a complete Stripe subscription billing system to your existing web app — pricing page, secure checkout, customer self-service portal, and full webhook handling. Perfect for SaaS products ready to start monetizing or replacing a janky manual billing flow.
No card data ever touches your server (Stripe Checkout = PCI-compliant by design). Your customers can upgrade, downgrade, cancel, and update payment methods themselves — zero support work for you.
What you'll get:
• Pricing page with your plans (monthly/yearly toggle, feature comparison)
• Stripe Checkout integration (hosted, PCI-compliant)
• Customer Portal (self-service: upgrade/downgrade/cancel/update payment method)
• Webhook handler for: subscription created/updated/canceled, payment succeeded/failed, trial ending
• Subscription state synced to your database
• Trial periods + grace periods + proration logic
• Test mode → Production mode migration guide
Works with most stacks: Node.js (Express/NestJS), Python, PHP, plus React/Vue/Nuxt/Next on the frontend. PostgreSQL, MySQL, Supabase, MongoDB.
Senior SaaS Engineer, Top Rated on Upwork, Native German speaker — direct communication, no timezone friction.
No card data ever touches your server (Stripe Checkout = PCI-compliant by design). Your customers can upgrade, downgrade, cancel, and update payment methods themselves — zero support work for you.
What you'll get:
• Pricing page with your plans (monthly/yearly toggle, feature comparison)
• Stripe Checkout integration (hosted, PCI-compliant)
• Customer Portal (self-service: upgrade/downgrade/cancel/update payment method)
• Webhook handler for: subscription created/updated/canceled, payment succeeded/failed, trial ending
• Subscription state synced to your database
• Trial periods + grace periods + proration logic
• Test mode → Production mode migration guide
Works with most stacks: Node.js (Express/NestJS), Python, PHP, plus React/Vue/Nuxt/Next on the frontend. PostgreSQL, MySQL, Supabase, MongoDB.
Senior SaaS Engineer, Top Rated on Upwork, Native German speaker — direct communication, no timezone friction.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$800
|
Standard
$1,400
|
Advanced
$2,200
|
|---|---|---|---|
| Delivery Time | 7 days | 10 days | 14 days |
Number of Revisions | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
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About Nazir
Senior Full-Stack SaaS Engineer | Stripe, Node.js, TypeScript, Nuxt
100%
Job Success
Hannover, Germany - 1:48 am local time
I'm a Senior SaaS Engineer specialized in subscription-based products, payment-heavy applications, and internal web tools. My goal: take over the entire technical side so you can focus on customers, sales, and growth.
What I help you build:
• SaaS MVPs and full products – multi-tenant web apps, dashboards, admin panels, customer portals
• Payment & billing flows – Stripe subscriptions, one-time payments, trials, upgrades/downgrades, invoicing
• Internal tools – booking & reservation systems, back-office dashboards, CRMs and automation for operations
• Integrations & workflows – REST/webhook APIs, 3rd-party SaaS integrations, background jobs and scheduled tasks
• Real-time features – live dashboards, notifications, collaboration features using WebSockets
Tech stack I work with:
• Backend: NodeJS (Express), TypeScript, REST APIs, webhooks, background workers
• Data: PostgreSQL, MySQL, Supabase (database, Auth, Realtime, Storage, Edge Functions)
• Frontend: Vue and Nuxt for modern SPAs and SSR apps, responsive UI, component-based architecture
• Payments: Stripe as the primary provider (subscriptions, billing, customer portal), with experience integrating other SaaS-focused billing platforms when needed
• Infrastructure: Docker and Docker Compose, Nginx, CI/CD (GitHub or GitLab), deployments to VPS and cloud (Netcup, Hetzner, AWS, Vercel and similar)
• Extras: Redis for caching and queues, email and SMS providers, analytics and monitoring tools
How I work with startups:
• Translate your idea into a clear technical architecture and roadmap
• Prioritize features for fast MVP launch while keeping the system scalable
• Build clean, maintainable codebases with documentation your team can understand
• Set up environments, deployments, and basic monitoring so your product is ready for real users
• Communicate clearly, give honest feedback, and treat your product like my own
If you're building or scaling a SaaS product and need an engineer who can own the complete lifecycle – from architecture and implementation to launch and iteration – I'd be happy to help.
Steps for completing your project
After purchasing the project, send requirements so Nazir can start the project.
Delivery time starts when Nazir receives requirements from you.
Nazir works on your project following the steps below.
Revisions may occur after the delivery date.
Integrate Stripe Checkout, Customer Portal & webhooks
I set up products and prices in Stripe, integrate Checkout into your pricing page, add the Customer Portal, build the webhook handler, and sync subscription state to your database. Then test mode validation and go-live.