MERN Stack Mastery
We treat MongoDB, Express, React and Node as a single, observable runtime — typed end-to-end with TypeScript, hardened with Zod schemas and shipped behind feature flags. Every API contract is generated, every UI state is driven by pure data, and every render path is profiled before it reaches production.
- React 18 concurrent rendering, suspense-first data flow
- Express + Fastify gateways with OpenAPI generation
- MongoDB schema design, replica sets and time-series collections
- End-to-end tracing from React event → Mongo query