Contact person: Business Client

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Location: Singapore, Singapore

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"AI-Powered Customer Conversation Platform

Project Type: Multi-Tenant SaaS Platform

Overview
Building an AI-native conversation orchestration platform that helps businesses manage and automate customer conversations across WhatsApp and social media channels. The platform uses AI to provide intelligent next-best-action recommendations and tracks conversation outcomes.

Tech Stack Required
Backend:
Python 3.13 or 3.14 + (FastAPI framework)
PostgreSQL 15+ with SQLAlchemy ORM
Redis for caching and job queues
Multi-LLM integration (OpenAI, Anthropic, Groq)
RESTful API design with OpenAPI/Swagger documentation
Vector Database (Pinecone, Qdrant)

Additional Technologies:
React 18 + TypeScript frontend
WhatsApp Cloud API integration (direct and via Solution Partners)
Google Cloud Translation API
JWT authentication and encryption
Alembic for database migrations

Key Requirements
Multi-tenant architecture with row-level security
Adapter pattern for external service integrations (LLM providers, messaging platforms)
Event-driven architecture (Redis Streams)
Webhook handling for real-time messaging
RESTful APIs for workflow engine and AI orchestration
Comprehensive testing (pytest)
Clean code following Python best practices (Ruff linting)

Deliverables
Fully functional backend with API documentation
Database schema and migrations
Integration with WhatsApp Business API
AI orchestration engine with multi-LLM support
Multi-language translation service
Comprehensive test coverage
Deployment-ready codebase

Ideal Candidate
3+ years Full Stack development experience including Python
Strong FastAPI and PostgreSQL expertise
Experience with multi-tenant SaaS applications
Familiar with AI/LLM integrations
Understanding of adapter/interface design patterns
Experience with webhook handling and async processing
Strong documentation and testing practices

NDA + IP agreement Required | Milestone-based payments | Detailed architecture documentation provided" (client-provided description)