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I will build a multi tenant ai booking saas with payments
Elton C.
About this gig
Launch an enterprise-grade booking SaaS with voice AI scheduling, zero-leak multi-tenancy, and HIPAA-ready data encryption.
Most booking applications on freelance platforms are basic Calendly clones or monolithic WordPress plugins that leak styles and store sensitive data in plaintext.
I engineer hardened Next.js 16 SaaS platforms built on React 19, TypeScript, PostgreSQL, and Prisma ORM.
Key Capabilities Delivered:
1. Zero CSS-Leak Shadow DOM Widget:
Embeddable 11 KB client widget compatible with WordPress, Shopify, and Webflow without CSS collisions. Includes natural language voice scheduling and availability slot solvers.
2. Multi-Tenancy & Cryptographic Security:
Workspace isolation via dynamic URL routing (/dashboard/[slug]) and field-level AES-256-GCM encryption in Prisma ORM for sensitive notes and private records.
3. Payments & Invoicing Engine:
Multi-gateway checkout using Stripe Subscriptions and Connect, plus automated dynamic PDF invoice generation.
4. Rigorous Automated Testing:
Shipped with comprehensive Vitest unit tests and Playwright End-to-End browser test coverage.
Get to know Elton C.
Elton C.
Fullstack AI Systems Architect, Autonomous Agents, Production SaaS, Enterprise
- FromBolivia
- Member sinceAug 2026
- Avg. response time1 hour
Languages
Spanish, English
Senior Fullstack AI Systems Architect and Software Engineer specializing in mission-critical software. My work is rooted in rigorous systems engineering: dual-layer AI agents with deterministic state machines and tool calling, fullstack multi-tenant Next.js SaaS platforms, offline-first architectures, and automated Playwright E2E testing suites. If your business requires software that runs predictably in production rather than fragile prototypes, let us collaborate. Native bilingual support in English and Spanish.
My Portfolio
FAQ
Can I use this for multiple client businesses (White-Label)?
Yes. The Premium tier includes full multi-tenant workspace architecture (/dashboard/[slug]). You can onboard independent businesses with isolated data, staff, and payout settings.
Does the voice booking assistant hallucinate availability?
No. The AI assistant utilizes strict Function Calling. It reads live slot availability directly from the PostgreSQL database before confirming any booking.
What are the typical cloud hosting costs?
The application deploys to Vercel or AWS for the Next.js frontend, and Supabase or Neon for PostgreSQL. Total baseline cloud operating costs typically start under $25 USD/month.
