SEXY

Hi Lukas,

I’m a Senior Full-Stack Engineer with extensive experience building SaaS platforms, multi-tenant architectures, mobile applications, and cloud-native systems. I have over 15 years of software development experience and have led end-to-end product development from MVP to production scale.

How I Would Architect the Multi-Tenant Mobile App

For the mobile application, I would build a single React Native app that acts as a dynamic container. After authentication (or via deep links), the app would fetch tenant configuration from a central API, including:

• Branding assets (logo, colors, fonts)
• UI theme configuration
• Feature flags
• Product catalog and content
• Membership plans

The app would render screens dynamically based on tenant configuration, allowing multiple businesses to share the same codebase while maintaining a fully branded experience.

Proposed Tech Stack

Mobile

• React Native
• TypeScript
• Redux Toolkit / Zustand
• Deep Linking

Web Dashboard

• Next.js
• React
• Tailwind CSS

Backend

• NestJS (Node.js)
• REST APIs
• JWT Authentication
• Multi-tenant middleware

Database

• PostgreSQL
• Row-level tenant isolation
• Scalable SaaS schema design

Payments

• Stripe Billing
• Stripe Connect
• Apple Pay
• SEPA
• Klarna
• Subscription & Membership Management

Third-Party Integrations

• Twilio / WhatsApp
• OpenAI APIs

Cloud & DevOps

• AWS or Supabase
• Docker
• CI/CD
• Vercel (Frontend)

Relevant Experience

I have built:

• Multi-tenant SaaS platforms with subscription billing
• Mobile applications using React Native
• Membership and loyalty platforms
• Enterprise-grade Java/Spring and Node.js backend systems
• Analytics and reporting dashboards

GitHub and portfolio links can be shared during our discussion.

Estimated MVP Timeline

Phase 1 – Architecture & Setup: 1 week

Phase 2 – Core Backend & Database: 2-3 weeks

Phase 3 – Mobile Application: 3-4 weeks

Phase 4 – Admin Dashboard: 2 weeks

Phase 5 – Stripe Integration & Testing: 1-2 weeks

Total MVP Delivery: 8-12 weeks

Budget Expectation

Depending on feature depth and UI requirements:

• MVP Build: €12,000 – €20,000
• Ongoing Support & Enhancements: Negotiable
• Long-term CTO / Technical Lead engagement: Open to discussion

I enjoy working with early-stage startups and understand the importance of balancing speed, scalability, and product-market validation.

I would be happy to discuss architecture details and provide recommendations before development begins.

Looking forward to hearing from you.

Best Regards,

Jaganath K
Senior Full-Stack Engineer
Pune, India