I provide professional Web Application Development services, specializing in robust and scalable backend systems using Node.js, Express, and MongoDB, paired with seamless frontend integration. Whether you're launching a new product, modernizing your stack, or need reliable backend infrastructure, here’s how I help:
Architecture & API Design: I structure scalable RESTful architecture for data-heavy apps, microservices, streaming platforms, and event-driven workflows.
Database Modeling & Optimization: I build efficient MongoDB schemas for users, content, sessions, and transactions, with indexes, normalization, and query tuning for high throughput.
Secure Authentication & Input Validation: I implement JWT-based auth and input validation (e.g. Joi/express-validator) to ensure secure access and data integrity.
Reliability & Protection: I add error handling, transaction workflows, and rate-limiting to maintain stability and prevent misuse in production environments.
Caching for Performance: I implement Redis or in-memory caching strategies to reduce DB load and boost API response times.
Modular & Testable Services: I structure services using dependency injection (DI) for cleaner code, maintainability, and easier testing.
Automated Testing & Documentation: I write unit/integration tests (Mocha, Jest, Chai) and generate API docs with Swagger or similar tools.
Collaborative API Contracts: I coordinate closely with frontend teams to define clear version-controlled API contracts for smooth integration.
CI/CD, Deployment & Support: I set up deployment pipelines, monitor backend health, manage builds, and handle post-launch bug fixes and optimizations.