Build Multi-Tenant Fintech AI SaaS Platform for Financial Operations & Workflow Automation

We are building a centralized fintech platform to unify and automate our financial operations across multiple internal systems and tools. Currently, our financial data is spread across spreadsheets, banking exports, accounting tools, and internal databases, which makes reporting slow, error-prone, and difficult to scale across teams and clients. We need a secure, multi-tenant SaaS platform that centralizes financial workflows, improves data consistency, and introduces AI-assisted automation for reporting and operational tasks. Core Requirements Multi-tenant SaaS architecture with strong data isolation Secure authentication (JWT / OAuth2) and role-based access control FastAPI backend for financial data APIs and processing React dashboard for financial reporting and operations PostgreSQL database for structured financial data AI-assisted automation for reporting, reconciliation, and insights Async background processing for data-heavy operations Docker-based deployment for scalable infrastructure Problem We Are Solving Our current financial workflow is: Fragmented across multiple tools and spreadsheets Slow and manual reporting process High risk of inconsistencies and human error No centralized visibility across financial operations Difficult to scale across clients and internal teams We need a unified fintech platform that automates reporting, improves accuracy, and provides real-time financial visibility. Looking For A developer experienced in: Fintech or financial SaaS platforms Multi-tenant system architecture FastAPI / backend engineering at scale AI integration for financial automation and reporting Please share relevant experience, architecture approach, and estimated delivery timeline.