GraalVM and Micronaut – Hello World

Reading Time: 6 minutes

The GraalVM is one of those technologies that are getting interest in the Cloud Native world during the last couple of years. It comes to solve some key challenges when we have to develop services into the Cloud. Moreover, and keeping the context about fast and cloud-oriented software development, we have the modern Java framework Micronaut, which is also very hot nowadays.

In this article, we will perform the Hello World for a Micronaut application using the GraalVM, and we will analyze the initial lessons learned for considering this GraalVM technology into production environments. Engage!

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Hiring in a hypergrowth company

Reading Time: 4 minutes

Hiring is taught. Hiring in the technology world is not different. Actually, maybe is even more difficult nowadays comparing with some other fields. Hiring the right people, in a tech hypergrowth company is even more difficult.

shallow focus photography of red and white for hire signage

I’ve been hiring persons for the software engineering field in a hypergrowth tech company for the last 3 years, including the COVID-19 pandemic time and, in this article, I’ll explain my journey and the lessons learned so far. Engage!

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Yes!, What you learn matters!

Reading Time: 4 minutes

In my professional career, I’ve passed through several ways to think. The last one, from 2013

If a good opportunity passes in front of you, take it right away.

At that time I learned the same but for renting an apartment in Geneva area… but that’s another story :).

Past April 2021, I had a great opportunity and I took it. Hoping that my professional experience could help people that are just finishing their studies in Computer Science, I’ve performed a talk for the Escuela de Ingeniería Informática, which belongs to the University of Oviedo.

In this article, I’ll talk about this experience and why I think it’s important that a close collaboration between universities and companies happens. Engage!

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Multi-tenant Feature Flag Manager

Reading Time: 5 minutes

I’ve been searching on the Internet for some already builtin Feature Flag Manager for multi-tenant systems, with not much luck. There are some companies and products that offer Feature Flag as a Service (let’s call it like that), which permits managing this contraption for your microservice architecture, but unsure about if they support multi-tenancy.

Sunset Railroad Tracks
Railway tracks in the sunset. Taken at Frankfurt Central Station.

In this article, I’ll propose a system for a real multi-tenant Feature Flag Manager system. Engage!

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Review Course Containers Fundamentals (LFS253)

Reading Time: 3 minutes

I’ve recently started with the training platform from The Linux Foundation, and my first course has been “Containers Fundamentals (LFS253)“. This is the first out of an unknown number of reviews dedicated to the courses I take from The Linux Foundation.

The Internship Movie Promotion
The Internship Movie Promotion

On all these articles, I’ll write a small review with the highlights I consider important for a professional profile oriented to Tech Leads of teams of Software Engineers that delivers microservice-based systems in Kubernetes platforms. Engage!

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Adopting a distributed key/value storage

Reading Time: 6 minutes

Organization of the information. This is one of the most important challenges in the current era where a massive amount of data is managed. Looking for a distributed key/value store for your system is something not easy.


In this article, we will define some desirable features for these kinds of systems and then we will address some of the options in the current market: TiKV, etcd and Consul. Engage!

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How to create a Cloud Native Community Group

Reading Time: 2 minutes

The Cloud Native Computing Foundation supports the worldwide community of the Cloud Native Community Groups (CNCG) and currently, they are working on expanding the Cloud Native community around the globe, and they are happy to accept the new local communities to join their network.

Cloud Native Computing Foundation logo
Cloud Native Computing Foundation logo

In this short article, I will describe the few steps and a couple of tips for creating a Cloud Native Community Group. Engage!

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New Kids On The Block

Reading Time: 2 minutes

Opening new frontiers. That’s the feeling that I had when the CNCF promoted the opportunity to create new Community Groups across the world. I saw it on Twitter, and I thought, “what if.. ?”. Yes, there it is again, the feeling that comes together with that sentence. After that, I thought, “but it would be pretty hard to manage a Community Group only by myself…”. The rest of the story I will tell on another occasion, but the result of the whole thing is what I want to introduce to all of you today: The Cloud Native Asturias Community Group. Engage!

Cloud Native Asturias official logo

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The Butterfly Effect

Reading Time: 4 minutes

A butterfly flaps its wings in Pekin and a storm is created in Florida“. This is one of the typical sentences heard when chaos theory comes along. How leadership and mentoring could be introduced using this concept?.

In this post, you will not find a deep analysis of the chaos theory neither the mathematical analysis from Edward Lorenz, but you will find how this theory is reflected in the leadership and mentoring aspects of professional life. Engage!.

A plot of the Lorenz attractor for values r = 28, σ = 10, b = 8/3;
A plot of the Lorenz attractor for values r = 28, σ = 10, b = 8/3. CC BY-SA 3.0

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Enter, The NATS

Reading Time: 11 minutes

Deliver a message from point A to point B as fast as possible. This is a requirement for humankind for a long time ago. History says there are records from 900 B.C. about Royal Post system in China to practice communication by written documents carried by an intermediary from one person or place to another. As you can imagine, since then, the way to deliver a message has been changed a lot not only the envelope but also the means of transmission.

Nowadays, in the era of communication between machines, there is still the need of delivering messages, and as fast as possible too. In some cases, you need speed, other cases you prefer to be sure about the reception of the message delivered besides the speed, and you may have many other needs. The systems to deliver messages were called just queue systems, just a couple of decades ago, but today they are frequently called message brokers.

There are several message brokers in the market in the current time. In this post, you will read about NATS. Engage! logo

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