Build Multi-Tenant WhatsApp Automation SaaS Platform (Node.js + React + Meta Cloud API)
Budget: ₹75,000 – ₹150,000 INR
I need an experienced full-stack partner to build the very first release of a multi-tenant WhatsApp Automation platform that talks directly to Meta’s official WhatsApp Business Cloud API. This is a full SaaS, not a single-tenant script, so clean, scalable architecture and production-ready code are non-negotiable.
Scope and core modules
• WhatsApp Cloud API integration that handles session management, webhooks, templates and media.
• A no-code, drag-and-drop chatbot flow builder (React Flow) that lets non-technical users design conversation paths.
• Broadcast engine for bulk messaging with queueing (Redis) and smart retries.
• WhatsApp Marketing CRM — contact management, lead scoring, analytics & reporting with campaign management, automated follow-ups, plus segmentation and targeting baked in.
• Embeddable chat widget that visitors can launch from any website.
• Multi-tenant data isolation, role-based access and JWT authentication.
Tech stack
Backend: Node.js with TypeScript, Express or Fastify, PostgreSQL, Redis.
Frontend: React or Next.js with TailwindCSS and React Flow.
Infra: AWS or DigitalOcean, CI/CD, secrets management via environment variables.
Key expectations
1. Codebase organised for future feature expansion (micro-service friendly).
2. Clean TypeScript typings, ESLint/Prettier in place.
3. Proper testing strategy (unit + minimal integration).
4. Dockerised containers and IaC scripts for easy deployment.
5. Detailed README and basic admin guide.
Acceptance criteria
• All modules above functional in a single live environment.
• Onboarding flow allows a new tenant to sign up, connect a WhatsApp Business number and start broadcasting.
• Load test shows stable performance for the first 1 000 concurrent conversations.
• Source code passes review and unit tests >90 % coverage.
When replying, briefly outline a high-level architecture, any similar SaaS you’ve shipped, and your proposed timeline to reach an MVP we can demo to early adopters.
Scope and core modules
• WhatsApp Cloud API integration that handles session management, webhooks, templates and media.
• A no-code, drag-and-drop chatbot flow builder (React Flow) that lets non-technical users design conversation paths.
• Broadcast engine for bulk messaging with queueing (Redis) and smart retries.
• WhatsApp Marketing CRM — contact management, lead scoring, analytics & reporting with campaign management, automated follow-ups, plus segmentation and targeting baked in.
• Embeddable chat widget that visitors can launch from any website.
• Multi-tenant data isolation, role-based access and JWT authentication.
Tech stack
Backend: Node.js with TypeScript, Express or Fastify, PostgreSQL, Redis.
Frontend: React or Next.js with TailwindCSS and React Flow.
Infra: AWS or DigitalOcean, CI/CD, secrets management via environment variables.
Key expectations
1. Codebase organised for future feature expansion (micro-service friendly).
2. Clean TypeScript typings, ESLint/Prettier in place.
3. Proper testing strategy (unit + minimal integration).
4. Dockerised containers and IaC scripts for easy deployment.
5. Detailed README and basic admin guide.
Acceptance criteria
• All modules above functional in a single live environment.
• Onboarding flow allows a new tenant to sign up, connect a WhatsApp Business number and start broadcasting.
• Load test shows stable performance for the first 1 000 concurrent conversations.
• Source code passes review and unit tests >90 % coverage.
When replying, briefly outline a high-level architecture, any similar SaaS you’ve shipped, and your proposed timeline to reach an MVP we can demo to early adopters.
Related categories:
PHP
JavaScript
Node.js
PostgreSQL
Redis
AngularJS
Docker
Microservices
Next.js
CI/CD