SyntezCRM

Designed and built a modern multi-tenant CRM platform that unified customer management, sales, communication, billing, analytics and operational workflows into a single extensible SaaS product.

The platform was engineered around workspace isolation, modular business domains and API-first architecture, allowing multiple organizations to securely operate on shared infrastructure while maintaining complete data separation.

The goal was not simply to build another CRM.

The platform needed to become the operational system for an entire business, combining customer management, sales pipelines, communication channels, invoicing, recurring work, analytics and team collaboration without fragmenting data across separate applications.

At the same time, every organization required complete tenant isolation while sharing the same backend infrastructure and deployment.

Designed a modular multi-tenant architecture where every business workspace operates independently while reusing common platform services including authentication, billing, permissions, storage, messaging and analytics.

Instead of tightly coupling business modules, the system separates CRM, billing, inbox communication, file storage, activities, recurring tasks and reporting into well-defined domains connected through shared services and domain events.

The backend is organized into independent business domains running on a shared platform.

CRM and Billing are intentionally separated into different PostgreSQL schemas while platform services provide authentication, permissions, storage and communication between domains.