Multi-tenant SaaS

QA Management Platform

Modular multi-tenant QA management backend with REST APIs, tenant isolation, RBAC, audit logging and automated tests.

My role: Architect and developer
Stack: TypeScript, Node.js, Next.js, PostgreSQL, Drizzle ORM, Vitest, Playwright

System architecture

Modular backend with PostgreSQL repositories behind REST APIs. Every request is tenant-scoped, permissions are enforced through RBAC, and sensitive actions are written to an audit log.

Key features

Modular multi-tenant architecture with tenant isolation
REST APIs over PostgreSQL repositories (Drizzle ORM)
Role-based access control
Audit logging
Automated unit and integration tests (Vitest, Playwright)

Related projects

Hiral International CourierShipment platform with AWB-based tracking, administrative management and JWT-secured server-side APIs.
DocuMind AIDocument Q&A SaaS built on FastAPI and pgvector RAG, with JWT auth, Stripe billing, async Celery ingestion and Langfuse observability.

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