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Cloud Computing

19.08.2025

Implementing cloud computing enables teams to operate faster, more flexibly, and with reduced costs, as it eliminates the need for physical infrastructure investment. Want to understand better what cloud computing is and how it can realistically support your project? You’re in the right place, because in this article we’ll explain how cloud computing works, what service models it offers, and why more and more companies, from startups to corporations, are choosing to migrate to the cloud.

What is cloud computing: a definition based on practice

Cloud computing is a model for delivering IT resources (such as servers, disk space, networks, and applications) over the Internet, on demand, in a self-service model. Specialists often point out that it offers the possibility of instant scaling.

Why is it so popular? Because by investing in cloud computing, instead of spending the fixed costs of maintaining your own server room:

You deploy the required resources when you need them,

…so you only pay for real consumption,

and you can access resources from anywhere and on any device.

Cloud computing has been transforming the way IT systems are designed, implemented, and maintained for years, particularly in environments where responsiveness and cost predictability are top priorities.

Cloud computing – what is it? Top 5 features

According to the NIST definition, a well-designed cloud computing system is distinguished by 5 features:

1. On-demand self-service

The user runs, for example, a virtual machine or a database on their own, without the vendor’s involvement.

2. Access via the network

Resources are available via browser, API, or mobile apps – regardless of location.

3. Resource pooling

Resource pooling involves the provider sharing infrastructure among customers, ensuring efficiency and cost optimization.

4. Flexible scalability

It is important because it allows you to automatically adjust computing power as needed, rather than just increasing it.

5. Billing based on consumption

You have complete control over consumption and costs, with the ability to effectively monitor resources.

Cloud computing vs. service models: SaaS, PaaS, IaaS. What should you choose?

Depending on how much responsibility you want to take on, there are three cloud service models available:

SaaS – Software as a Service

You use an off-the-shelf application provided by the vendor; you deploy everything rather quickly, and the configuration is minimal.

PaaS – Platform as a Service

What you get from the vendor is a ready-made environment for developing and deploying applications. You focus on the code, and you do not have to worry about the infrastructure or servers.

IaaS – Infrastructure as a Service

With this option, you have full control over the system, network, and software, making it ideal for flexible projects that require customized architecture.

Want to see how it looks in practice? Read our case study on implementing AWS EKS Auto Mode.

What about cloud deployment models? We can discuss private cloud, public cloud, hybrid cloud, and community cloud, depending on your company’s scale, security requirements, and regulatory needs.

Cloud computing – security aspects

If you’re concerned about security, contrary to widespread fears, many studies indicate that the cloud is more secure than local infrastructure, provided it’s properly configured. This is because the move to the cloud forces modern practices, automation, and regular updates. For example, according to the 2021 Cloud Security Report prepared by Cybersecurity Insiders, 28% of companies indicated that one of the benefits of moving to the cloud was improved security. At the same time, most companies admit that they still lack cybersecurity training for cloud solutions.

How will j‑labs support your team in moving to the cloud?

At j‑labs, we combine expertise in DevOps (and even DevOpsSec) and other areas to help customers:

move systems to the cloud (e.g., AWS, Azure),
design new cloud-native solutions,
implement IaaS or PaaS models,
optimize costs and increase infrastructure availability.

Learn about our approach to cloud computing with Amazon Web Services – a practical example with code in the main role. If you want to use the cloud effectively, both from an architectural and cost perspective, it’s worth working with a partner who knows the subject inside and out.

Do you have an idea for a cloud-based project? Fill out our form – we will be happy to help you make it happen.