Production-grade multi-tenant SaaS — shipped end to end
Production systems shipped for clients in fintech, logistics, and B2B ops — NestJS + Angular + Nx monorepos with multi-tenant isolation, DDD, and full CI/CD delivery.
Fintech and logistics platforms have zero tolerance for data bleed, downtime, or deployment surprises. These engagements deliver complete systems — multi-tenant NestJS backends with row-level security, domain-driven bounded contexts, and CI/CD pipelines that graduate from staging to production without manual intervention.
The challenge
Enforcing strict per-tenant data isolation across a shared database schema while maintaining query performance at B2B transaction volumes.
The outcome
Production systems handling real financial flows and logistics operations — deployed, monitored, and maintained under NDA.
Technical approach
- Multi-tenant architecture — tenant-scoped data isolation at database and API level
- ZenStack row-level security — declarative Prisma-layer access policies per tenant
- Domain-Driven Design (DDD) — bounded contexts with explicit domain events and aggregates
- CQRS pattern — separate command and query models for complex business operations
- Nx monorepo — shared libraries, build caching, and affected-only CI across workspaces
- NestJS module system — dependency-injected feature modules with clear public API boundaries
- Prisma ORM — type-safe database access with migration-driven schema management
- GitHub Actions CI/CD — staged pipeline: lint → test → build → Docker push → deploy
- Event-driven architecture — domain events published for cross-context side-effects
Results at a glance
- Lead engineering
- Engagement type
- NDA
- Confidentiality
