Node.js Job Support – Real-Time Backend Help
Node.js powers fast, scalable backends — but event loop blocking, callback hell, memory leaks, and async gotchas can grind productivity to a halt. Our Node.js job support team provides live, screen-share sessions with senior Node engineers to get you unblocked fast.
Node.js Topics We Cover
Frameworks & APIs
- Express.js – routing, middleware, error handling, body parsers, rate limiting
- NestJS – modules, providers, guards, interceptors, pipes, decorators, microservices
- Fastify – schema validation, plugins, hooks
- REST vs. GraphQL APIs – Apollo Server, schema stitching, subscriptions, DataLoader
Databases & ORMs
- MongoDB with Mongoose – schemas, virtuals, populate, aggregation pipelines
- PostgreSQL with Sequelize / Prisma – migrations, raw queries, transactions
- Redis – caching strategies, pub/sub, rate limiting, session storage
Async & Performance
- Async/await, Promises, event emitters
- Worker threads vs. child processes for CPU-intensive tasks
- Stream processing with Node.js streams
- Memory profiling and heap dump analysis
- Clustering and PM2 for multi-core usage
Authentication & Security
- Passport.js – local, JWT, OAuth strategies
- Helmet, CORS, rate limiting, input sanitisation
- HTTPS, SSL termination at Node layer
Testing & Quality
- Jest and Supertest for API testing
- Nock for HTTP mocking
- TypeScript strict mode with ts-node
Problems We Solve Daily
- "Cannot read properties of undefined" in async middleware
- Event emitter memory leak warnings
- NestJS circular dependency errors
- Mongoose populate not working as expected
- Node process crashing under load with heap OOM
- ESM vs. CommonJS module conflicts