Node.js - Backend in JavaScript
Scalability and development speed
Node.js allows using JavaScript on the server side, which speeds up development and facilitates collaboration between frontend and backend.
When Node.js is the best choice
Node.js works well in projects requiring high I/O performance and rapid development.
- REST and GraphQL APIs
- Real-time apps (WebSockets)
- Microservices and serverless functions
- Apps requiring high I/O throughput
- Projects with JavaScript-knowing team
When to consider alternatives
Node.js has its limitations - in some scenarios other solutions will be a better choice.
- Apps requiring intensive CPU calculations (better Python/Go)
- Projects requiring strong typing (better TypeScript + strict mode)
Architecture and patterns
Node.js offers flexible architecture based on event loop and asynchronicity.
Express/Fastify
Frameworks for building API - Express for simplicity, Fastify for performance.
Microservices
Division into independent services communicating via API/RabbitMQ/Kafka.
TypeScript
Type safety throughout project, better IDE support, easier refactoring.
Security and quality
Node.js requires conscious security approach - from dependencies to infrastructure.
Dependency Security
npm audit, Snyk, regular updates, minimal dependencies.
Input Validation
Joi/Zod for validation, sanitization, rate limiting, CORS.
Authentication
JWT with refresh tokens, bcrypt for passwords, OAuth2 for SSO.
Performance and maintenance
Node.js offers excellent performance for I/O-bound apps but requires monitoring.
Throughput
Node.js can handle 10k+ concurrent connections thanks to event loop.
Monitoring
APM tools (New Relic, Datadog), logging (Winston, Pino), error tracking (Sentry).
How we deliver Node.js projects
Our delivery process is optimized for scalability and quality.
Architecture Design (1-2 weeks)
API design, framework selection, database architecture, scaling plan.
Development (6-16 weeks)
2-week sprints, TDD, code review, tests (Jest, Supertest), CI/CD.
Frequently Asked Questions
Is Node.js performant enough for production apps?
Yes, for I/O-bound apps (API, real-time) Node.js is very performant. For CPU-intensive tasks better use worker threads or other languages.
Want to use this technology in your project?
Contact us to discuss how we can help with your project.
Let's talk
about the project.
Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.
80-890 Gdansk, Poland