Raushan kumar raushanwith-code

Focus: Backend-web apps, APIs, and clean system design ⚙️
Strengths: Performance, reliability, and clear abstractions 🧠
Mindset: Test-first, secure-by-default, and production-ready 🔐

Hi 👋, I'm Raushan Kumar

Backend APIs: Robust REST with Spring Boot and Express.js, clean DTOs, layered architecture, proper error handling 🧩
Data: MongoDB with indexes, aggregations, and clear schema versioning 📚
Security: JWT, CORS, validation, rate limiting, and secure headers 🔒
Performance: Caching, pagination, async I/O, and N+1 query avoidance ⚡
Quality: CI-friendly tests, logging with correlation IDs, and structured docs 📈

- **Label:** Spring Boot REST API template - Clean modules, global exception handling, OpenAPI docs, and test suites.

Label: Node.js + Express starter
- Request validation, robust middlewares, and production-ready logging.
Label: MongoDB data layer
- Aggregation pipelines, indexes, and repository patterns.