Node.js - One Language for Frontend and Backend, Faster Development
Node.js development - performant APIs, real-time apps, microservices. Express, Fastify, Socket.io. One language for frontend and backend for faster development.
Node.js is a server-side JavaScript runtime that enables building fast, scalable network applications.
Challenge
You maintain separate frontend and backend teams, which slows communication. You need real-time features (chat, notifications, live updates). You want to share code and types between client and server.
Our Solution
Node.js enables fullstack development in JavaScript/TypeScript. We build APIs with Express/Fastify, real-time services with Socket.io, stream processing, and CLI tools. Shared TypeScript types between frontend and backend eliminate integration errors.
Result
Fullstack JavaScript/TypeScript eliminates the barrier between frontend and backend. Real-time features work natively. Faster development through shared code, types, and tools between application layers.
What we build with Node.js
We choose Node.js where development speed and handling many concurrent connections matter. We most often build:
- APIs and backend services (Express, Fastify, NestJS)
- Real-time applications: chats, notifications, live dashboards
- Microservices and integrations between systems
- A backend for web and mobile applications
- Tools that automate processes and data processing
With one language (JavaScript/TypeScript) on the front and back end, the team works faster and more consistently.
Why Node.js
Node.js has clear advantages where an app serves many users and many input/output operations.
- One language on the front and back end - a smaller team, faster communication
- Excellent handling of many concurrent connections (asynchronous model)
- A huge ecosystem of ready-made libraries (npm)
- Natural support for real-time features
- Shared TypeScript types reduce integration errors
For many products Node.js means faster time to market at a lower team cost.
How we work with Node.js
Fast development must not mean a mess, so we care about structure and quality from the start.
- Choosing the framework to fit the project (Express, Fastify or NestJS)
- Clean architecture and module separation for easy maintenance
- TypeScript for type safety and fewer errors
- Automated tests and CI/CD integration
- Production-ready monitoring and logging
We write code that is easy to develop and hand over to others, not just quick to launch.
Real-time applications and integrations
Node.js excels where data must flow instantly between users and systems.
- Chats, notifications and live communication (Socket.io, WebSockets)
- Dashboards that update in real time
- Integrations with external APIs and partner systems
- Stream and event processing
- Webhooks and automations that react to events
This lets your application offer the features users expect from modern products.
What you gain from a Node.js application
A well-built Node.js application combines fast development with performance where it's most needed.
- Shorter time and lower cost of building thanks to one stack
- Efficient handling of many users at once
- Native real-time features without workarounds
- Easy access to ready-made libraries from the npm ecosystem
- Consistent code between front and back end
It is a good choice for products that must be built quickly and handle traffic smoothly.
How much a Node.js project costs
The cost depends on the complexity of the logic, the number of integrations and performance requirements. A simple API is a project measured in weeks; an extensive system with many integrations is quoted individually and split into stages.
We bill on a Time & Material basis at 120 PLN/h net, with full transparency of the hours. We start by defining the scope of the first version to deliver a working product sooner.
After go-live we offer care from 1,000 PLN net per month - maintenance, updates and development.
Frequently Asked Questions
It depends on the project. Node.js works great for real-time applications, fullstack JavaScript and fast development. .NET is sometimes better for extensive business systems with high performance requirements. We advise the choice after analysing your needs.
Yes, with the right architecture. Node.js's asynchronous model handles many concurrent connections well. At very large scale we use horizontal scaling, queues and caching to keep performance up.
We choose the framework to fit the project: Express or Fastify for lightweight APIs, NestJS for larger, structured applications. We always favour TypeScript for type safety.
Yes, it's one of its main strengths. Using Socket.io and WebSockets we build chats, notifications and dashboards that update live.