Build high-performance web apps with Node.js

Node.js and Javascript for powerful full-stack development
Node JS

Fast and scalable apps in a powerful runtime environment

Node.js is allows the execution of JavaScript on the server side – it's perfect for building fast and scalable web applications. It has gained substantial popularity thanks to a vibrant community that makes sure the technology is up-to-date with the latest trends.

Get applications into production fast with rapid MVPs

Node.js is a great option for businesses who demand speed in production:
  • Dashboard

    Develop apps in record time

    Node.js’s event-driven I/O model supports the handling of concurrent requests. As a result, the app is fast even when performing multiple operations at the same time

  • Lightning

    Scale easily and enhance performance

    The event-based model also enhances the scalability and performance of Node.js applications. Node.js usually scales better than most other typical frameworks

  • Scale

    Become lightweight and efficient

    The non-blocking and event-driven I/O makes apps lightweight and efficient in the face of data-intensive real-time tasks running across distributed devices

  • Rocket

    Free yourself from restrictions

    Node.js gives you more freedom to build the app your own way. Developers are not restrained by excessive rules and guidelines. Your app will be exactly as you want


FinTech start-up Moonfare was built to scale fast serving 1,000 members in their first year

Moonfare – powered by Node.js

With the challenge of rewriting code from Sails to Node.js the product had to fulfil strict security standards, and provide an amazing user experience – with 1,000 new members secured in the first year the platform showed its ability to effectively scale as demand grew.

Choosing the right tools, tech stack and processes helped us build a product that is scalable and able to onboard new users as Moonfare grows.

Gerardo Bonilla

Product Manager – Moonfare

Build fast and asynchronous apps and dynamic websites

Bring the speed and efficiency of event-driven JavaScript to the back-end logic on your servers –Node.js is an open-source, cross-platform, JavaScript based and server-side development environment:
  • Star

    State-of-the-art technology

    Node.js has gained substantial popularity thanks to a vibrant community that makes sure the technology is up-to-date with the latest trends. Companies such as Netflix, Walmart, Uber, Trello, PayPal, LinkedIn, Medium, and even NASA have leveraged Node.js as the backend for their web applications.

  • Stack

    Unique framework features

    Using a unique non-blocking I/O model it makes the framework a top pick for scalable and real-time situations we are increasingly demanding of our servers. An excellent fit for real-time applications such as chats, streaming services, or collaboration tools. It also excels in Internet-of-Things apps and Single-Page Applications.

  • Security

    Robust server side applications

    Node.js can deliver a robust server side web application utilizing a wide range of tools – combine Javascript development and expertise in Node.js development to create apps such as 'GitItBack'. Commercial applications have been successful using Node.js as the backend, including an American news platform, a UK online estate agency, and an investment platform.

  • Puzzle

    Freedom to create

    Node.js developers can build you a dynamic web application and adapt to the latest tools and top technologies to improve scalable solutions. Create both simple as well as complex applications dedicated for all business types to build powerful real-time applications.

Let’s work together!

What technology and services bring maximum value to your business?

Web development helps solve problems and respond to users' needs by applying multiple technologies – make your brand stand out with the right solutions tailored to your needs:
  • Python


    A powerful technology used by multi-billion-dollar corporations and startups

  • RoR

    Ruby on Rails

    Perfect for fast prototyping and the efficient development of full web-based projects

  • Node


    An excellent choice for building scalable and high-performance apps

  • Scan

    Frontend solutions

    Frameworks and battle tested techniques that enable you to create a beautiful and user-friendly product

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Take advantage of proven processes and make your project a success

A good technology partner is able to take care of even the most complex of processes and will guide you flawlessly towards your goal.

How we work?

  1. Make a decision about cooperation

  2. Brainstorm and analyze together with your web development consultants

  3. Make a decision about the tech stack and the overall approach with your partner

  4. Create a beautiful and user-friendly app

  5. Make your app live thanks to carefully chosen technologies

  6. Attract users with tailor-made solutions

Find out what can be built with Node.js

Node.js can be used for different purposes – here are some areas where it excels in performance:

Internet of Things 

The most obvious advantage of Node.js as a back-end for such networks is its ability to process multiple concurrent requests and events emitted by thousands or even millions of devices on the network. The avalanche of requests and data coming from IoT devices does not block Node.js servers thanks to their event-driven architecture and asynchronous processing suitable for I/O-heavy operations on the IoT network.

This makes Node.js fast as an application layer between these devices and databases used to store data originating from them.

IoT developers working in data-intensive scenarios can leverage the low resource requirements of Node.js. Low memory requirements allow for the easy integration of Node.js as software into single-board controllers such as Arduino, widely used for building digital devices that make up IoT systems.

Finally, the Node community has been an early adopter of the IoT technology, creating over 80 packages for Arduino controllers and multiple packages for the Pebble and Fitbit wearable devices widely used in IoT systems.

Real-Time Chats

Real-time chats can take the form of one-to-one or one-to-many group chats built on instant messaging (IM) or Internet Relay Chat (IRC) technologies.

Node.js provides all basic functionalities for building real-time chats of any complexity. In particular, Node has a powerful Event API that facilitates creating certain kinds of objects (“emitters”) that periodically emit named events “listened” by event handlers. Thanks to this functionality, Node.js makes it easy to implement server-side events and push notifications widely used in instant messaging and other real-time applications.

Node’s event-based architecture also works well with the WebSockets protocol that facilitates a fast two-way exchange of messages between the client and the server via one open connection. By installing WebSockets libraries on the server and the client side, you can implement real-time messaging that has lower overheads and latency, and faster data transfer than most other, more conventional, solutions.

In Node, you have excellent support for WebSockets via such libraries as, ws, or websocket-node, thanks to which you can easily deploy efficient real-time chats and applications. With, for example, all you have to do to create a basic live chat is to install the library on the server and the client, and create event emitters and broadcasters that will push messages across the WebSockets open connection – this basic functionality can be achieved with just a few lines of code.

Complex Single-Page Applications

Node.js is a great fit for SPAs thanks to its efficient handling of asynchronous calls and heavy I/O workloads characteristic of these applications. Node.js’s event loop allows to “delay” multiple concurrent requests from the client, which ensures smooth transitions between views and seamless data updates. Also, Node.js works well with data-driven SPAs, where the server acts as a backend that provides data to the client whereas the client does all the HTML rendering.

With such framework as Express available via the NPM repository, you can turn Node.js into a REST API streaming data and services from specific routes. Such approach helps reduce the server’s load while ensuring API sharing across different applications and environments. In this scenario, Node.js would only return the index page (index.html) while data would be sent via REST interfaces and controllers implemented server-side. From the design point of view, such approach will ensure the clear separation of concerns (SoC) between models, controllers, and views with all data-related services implemented server-side.

Finally, Node.js is good for SPAs because it is written in the same language (JavaScript) as many popular JavaScript frameworks (Ember, Meteor, React, Angular) used in building SPAs. Since both Node.js and browsers use JavaScript, there is less context switching between them, and developers can use the same data and language structures and modular approaches both on the server and the client side. This results in faster development and better maintainability of your SPAs.

Real-Time Collaboration Tools

As in the case of the real-time chats, Node’s asynchronous and event-based architecture is a great fit for collaboration apps. In these applications, many events and I/O requests occur concurrently. For example, several users can edit the same paragraph, comment, post messages, and attach media. Changes to one piece of content might be applied only after a cascade of events, where each step depends on the previous one.

Node’s WebSockets and Event API will ensure that heavy I/O operations performed by many users do not make the server hang and that all server-side events and data are sent back to the client on time. By emitting push notifications to the client, Node.js will also instantly update the collaboration environment so that all users have a single and coherent representation of the application. This is precisely the reason why the team of the project management application Trello uses the Node.js stack.

The engineering team of Trello decided that Node.js would be great to instantly propagate a lot of updates and hold a lot of open connections, thanks to its event-driven and non-blocking architecture. Among other real-time collaboration apps built on Node.js, we should also mention Yammer, a freemium social networking service facilitating private communication in enterprises.

Streaming apps

Node.js is excellent for the development of streaming applications thanks to its native Stream API. In particular, Node.js has an interface of readable and writable streams that can be processed and monitored very efficiently. Stream instances are basically Unix pipes that allow transmitting parts of the app’s executable code to the local machine while keeping a connection open for new components to download on demand.

Streams allow users to pipe requests to each other, and stream data directly to its final destination. As a bonus, streams do not require caching and temporary data – just an open connection to stream application data from one place to another.

Microservices Architecture

Node.js is an excellent solution for developing microservices and creating easy-to-use APIs to connect them. In particular, the Node.js repository features Express and Koa frameworks, which make it easy to mount several server instances for each microservice and design routing addresses for them. Node.js with Express allows for creating highly flexible modules responsible for specific parts of your application.

In addition, Node.js can be easily integrated with Docker and will thus allow you to encapsulate microservices in hermetic containers to avoid any conflicts between the application development environments used in each of them. Using Node.js for microservices also benefits from Node’s lightweight requirements. Node.js with microservices significantly reduces application deployment time and enhances efficiency, maintainability, and scalability of your applications. Microservices architecture also helps manage the division of labor in your engineering teams efficiently, enabling them to work on specific tasks without affecting other parts of your application.

Build your competitive advantage with Node.js

We help clients from all over the world to stand out in the digital market – our team of 600+ specialists includes UI/UX designers, developers, illustrators, QA experts, and business analysts to create custom software development solutions for companies of any size.

Our partners about the cooperation with Netguru

  • "My experience working with Netguru has been excellent. Outstanding software teams are resilient, and our developers at Netguru have certainly proven to be that. Our Netguru friends have become as close to team members as possible, and I am grateful for the care and excellence they have provided."

    Gerardo Bonilla

    Product Manager at Moonfare
  • "We've worked with Netguru for several years now – perhaps longer than any other company. Our partnership is built on trust and mutual respect. Their engineering and design teams have enabled us to focus on building a great product for thousands of accommodation owners"

    Anna Silovsky

    Marketing Executive at InnStyle
  • "Working with the Netguru Team was an amazing experience. They have been very responsive and flexible. We definitely increased the pace of development. We’re now releasing many more features than we used to before we started the co-operation with Netguru."

    Marco Deseri

    Chief Digital Officer of Artemest

Netguru in numbers

  • 10+

    Years on the market

  • 600+

    People on Board

  • 600+

    Projects Delivered

  • 67

    Our Current NPS Score

What is Node.js and how can it help my business?

Here are answers to some of the most common questions asked by our clients:
What is it like working with Node.js teams?

Depending on the technology you are building the app with, the way your development team will work will be different.

The first thing to consider is the time scope of your project. In the long run, Node.js offers relatively low costs of development. Your initial budget will be bigger in comparison to Ruby on Rails, for instance, but with the app’s expansion, scale, new features, and further maintenance, the costs will drop and the development time will be shorter. That’s why it’s more efficient to build a demo or an MVP and a prototype your application with Ruby on Rails. That said, with RoR, the costs will grow more rapidly with time.

Secondly, since many popular frontend frameworks are based on Javascript (e.g. React, Ember, or Angular), it will be much easier to communicate within the team between backend and frontend developers. Both sides will write in the same language, so they will be able to understand code with ease, working more efficiently in effect.

Node.js is an unopinionated environment, which means that it comes with few guidelines. Developers need to pick and write solutions on their own. Therefore, at the start of the project, their experience and knowledge about different frameworks should be more extensive than in the case of RoR projects, where many things will be predefined at the get-go.

Javascript is one of the most popular developing languages, which makes it easier to find full-stack programmers with Node.js. It is also easier for someone who already knows Node.js to learn frontend and vice versa. Quite often, you can find developers that can both write the server- and the client-side of the application. You are likely to have a smaller team that will be easier to manage.

Finally, you should consider that with the growing popularity of Node.js, there is a rising demand for skilled and experienced developers, which will make finding members of your team more difficult. You should consider that, if you are planning to scale your application in the near future.

If you want to hire more devs for your team, specify the recruitment needs and plan it way ahead so that the lack of coders won’t hamper your work.

Is Node.js good for e-commerce?

An e-commerce platform is a complex system from a technical perspective.

Node.js is a Javascript environment that lets you develop performant and scalable applications. It’s a perfect match for applications such as real-time collaboration tools, chats, streaming apps or other applications that deal with multiple I/O operations. However, it doesn’t cope well with CPU-heavy software as the long-running calculations block incoming requests, which can lead to a drop in performance.


Node.js supports multitasking by giving better outcomes with lower costs. Comparing it to - say - PHP, it’s way more convenient. As the buyer's journey at an e-commerce store involves numerous operations, such as adding things to the basket, changing product features, choosing payments etc., it’s crucial from the performance viewpoint that the technology serve such tasks efficiently. And Node.js effectively handles different operations conducted at the same time, which makes it a good choice for e-commerce.


Node.js enables quick scalability. In a short period, your e-commerce store can grow substantially. It is an important factor to consider when choosing the technology. Node has an inbuilt mechanism that helps to manage scalability and adjust it to your individual needs.

Big and Active Community

The Node.js community is a very active and vibrant group of developers who contribute to the constant improvement of Node.js. Thanks to their cooperation, the framework is well-documented, up-to-date and continuously supported, which makes the development much easier and faster. They produce a ton of ready solutions, codes in Github, plugins, modules and many more possibilities. In addition, if a problem pops up, chances are you already have the answer on StackOverflow.

Many Plugins and Packages in npm

Node.js comes with a great deal of packages that can be easily implemented in your app. That way, developers don’t need to write everything from scratch but can leverage reliable open-source solutions. It significantly increases the speed of development. There are great packages available for e-commerce too.

One Language on Back- and Front-end

Node,js is a JavaScript-based environment, and many popular front-end frameworks (such as React, Ember, Angular) use the very same language. Therefore, you can create applications which are isomorphic that is written in one language. It streamlines the development process,the communication between front- and back-end teams is way easier, and they can understand both sides of the codebase much better. Potentially, you might have a smaller and more efficient team that is easier to manage.

Finally, with no technological diversity recruiting new people in case of scaling up won’t be a problem.

What are the challenges with maintaining Node.js apps?

Node.js is a runtime environment that allows executing JavaScript on the server side.

It offers many benefits for building applications such as real-time collaboration tools, streaming apps, chats, or Internet-of-Things apps. Node.js requires a slightly different approach and poses different challenges when it comes to maintenance.

Learning where you can find the biggest problems and knowing the right solutions is crucial to your app’s success:

1. Extensive stack

Node.js doesn’t provide any specific convention for developing the application. Frameworks that use Node.js are mostly unopinionated, meaning that they don’t give you any specific guidelines for the way code should be written.

That’s why each application requires an individual approach and, as a result, more experienced programmers who have worked out good processes for developing and maintaining code internally.

2. Technical Debt

Many problems with Node.js stem from the lack of good practices. The open-source community is very active and offers plenty of ways of building applications. Having too many options however, could be a problem for unexperienced developers and could lead to application structure incongruency.

The ecosystem is still relatively immature. Implementing well tested design patterns borrowed from other more traditional environments like Java is crucial for later code maintenance.

3. Scalability challenges

Node.js is a single-threaded process, which makes scaling a little bit more complicated. Developing more complex applications with CPU/MEM-heavy computations might require dividing it into smaller microservices that handle different operations.

When architecting a performant and scalable Node.js application, keep in mind it should be relatively small and stateless. Recent years have brought development in the area in the form of different architectural approaches such as the aforementioned microservices or serverless as well as Node.js threading support (still in the experimental form, but they should be a regular feature in Node v12)

4. Poor documentation

Documentation is crucial to every IT project – it gives you an idea of how the app works. It tells developers what the main components are, how they relate to each other, and what the main purpose of the application is.

It provides explanations as to why certain solutions, especially the less obvious ones, were applied. Poor documentation will very likely extend the development time, and make the whole process more difficult. It can expose the application to problems with performance and inhibit the implementation of new features.

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Delivered by Netguru

We are actively boosting our international footprint across various industries such as banking, healthcare, real estate, e-commerce, travel, and more. We deliver products to such brands as solarisBank, IKEA, PAYBACK, DAMAC, Volkswagen, Babbel, Santander, Keller Williams, and Hive.
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    $5M Granted in funding

  • Investment platform that enable to invest in private equity funds


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    $20M Granted in funding

  • Lead generation tool that helps travelers to make bookings


    $47M Granted in funding

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