Are you an individual? Occasionaly I take students for 1-1 training (only 1 student per month). Feel free to get in touch for current availability.



JavaScript icon JavaScript and TypeScript


JavaScript is not a poor's man language anymore. Mastering this language, and the whole ecosystem, is paramount for the modern team.

What I offer:

  • Strategic frontend support
  • Training and coaching
  • Ecosystem/tooling training
  • Frontend performance analysis / best practices
React and Redux Redux

REACT and Redux

React is an ubiquitous library for building user interfaces with a steadily growth in usage. I can consult and help your team with:

  • React projects
  • Redux integration with React
  • Testing


Here's what I enjoy working with ...

Django icon JavaScript icon JavaScript and TypeScript React and Redux


I build stuff mainly with JavaScript and Django. I guess all Django developers share a common story. They built a lot of stuff, tried a micro-framework, but in the end, they always returned to Django because it is opinionated, and offers all the tools for building full-stack web applications with Python.

Despite my crush for JavaScript on the frontend, Django and Postgres are my safe harbors for anything backend related.


Contact me to schedule a training - consulting plan or to discuss your next project.



Nicola Bavarone

Nicola Bavarone / CEO @ Bytelabs

Valentino is a very high level professional.

It provided its expertise as a team leader on a project based on Django and React. Needless to say, it really made a difference. I was very pleased and admired in the way he brought new teaching and best practices of the highest value.

Excellent cooperation even on the human profile and mutual confrontation.

Antonio Quondamatteo

Antonio Quondamatteo / CTO @

I want to express my appreciation for the wonderful work and the excellent service that Valentino has done.

He supported us in migrating our old full-stack PHP website to a new and more efficient ReactJS app.

Our team of PHP experts has been guided by him in the most appropriate choices and directions, saving a lot of precious time in the search for the best practical solutions.

Always available and friendly, Valentino has proven to be very professional and technically well informed.


Renzo Carpanzano / Partner @ Syntax S.r.l.

I was looking for a consultant who could help us with the strategic choice of front-end technologies for our products.

I stumbled on Valentino's blog, got in touch, and hired him for advice.

With great professionalism and passion he helped shaping our journey toward new technologies.

Feedbacks from developers I trained

Abdi Saeed

Abdi Saeed / Senior Front-end Developer

Valentino is a great trainer and mentor. He's flexible in his approach and tailors it to learner's needs.

What's appealing about his style is that not only he shows you "how" but also "why".

If you are looking to get up to speed or solidify your understanding, I would highly recommend Valentino.

Roberto Lanuti

Roberto Lanuti / Senior Java Developer

I was looking for a teacher who could help me to start with React/Redux and I found Valentino. I had the first 10 lessons with him where we were able to cover a lot of very interesting aspects of React and Redux (in order to start with them we had also a look/refresh on JavaScript concepts).

After the first 10 lessons, I decided to extend the course with another 5 lessons, that were dedicated to a better understanding of particular topics that I have raised . I'm very happy of him and his approach: I would definitely recommend Valentino!

John Amaya

John Amaya / Web Developer

After years of online courses I was still feeling insecure when writing code and logic. But thanks to the training path I took with Valentino now things start to be crystal clear.

Valentino prepares a personalized path for every student, and you learn something new in every lesson.

I suggest Valentino's training to anyone feeling insecure about programming in general and JavaScript. It's the best way to learn.

Irene Tomaini

Irene Tomaini / Front-end Developer

Great teacher.

I like the assignments so much, they are focused on solving real practical problems with React.

The assignments are never trivial, they require an effort which helps to internalize the concepts.

Being coached with a personalized learning path is very useful and helps saving plenty of time!

Cristiano Bianchi

Cristiano Bianchi / JavaScript Developer

I always studied JavaScript as a self-taught developer.

Then I decided to contact Valentino because I felt I had to dig deeper into the intricacies of JavaScript.

Valentino is able to explain JavaScript clearly, adapting the study plan to my needs.

The exercises are great too, and they help sticking JavaScript in my head. Great teacher! Recommended!

Thodoris Kallias

Thodoris Kallias / JavaScript Developer

Valentino is not only a JavaScript and React expert, but also has the required ability to clearly transmit this knowledge.

He attributes great importance to testing, a field in which few have comprehensive knowledge.

He is a great teacher, and I would highly recommend him.

Luca Parlapiano

Luca Parlapiano / Android Developer

Valentino is a great teacher! He is professional and prepared. He makes every topic clear and understandable. The lessons are relaxed and focused on guiding the student to clearly understand the concepts.

I've spared not less than 6 months of study and research on Redux thanks to him!


Valentino Gagliardi

Hi! I'm Valentino! I spent the last years as a frontend consultant, providing advice and help, coaching and training on JavaScript and React. I helped countless companies and teams to introduce testing in their frontend projects.

I worked as an instructor for multiple training agencies around the country, running in-person workshops and creating learning paths for aspiring developers. I love to share everything I learn on my blog with tutorials reaching over 100,000 monthly visits.

I also published books and courses: "The Little JavaScript Book", "Decoupled Django" with Apress, "Refactoring to React Hooks" with Manning. An avid Django user, I'm active in the Python community as a speaker, and as a coach for Django Girls. I strongly believe in inclusion and diversity in the tech world.

Books and courses

Open source contributions

Firefox Dev Tools

Initial work for adding "Store as global variable" in the debugger context menu.

Full story in Understanding the Firefox Dev Tools Architecture.

Django Q

Added Redis URI support


GraphQL Wroclaw - July 2021 - Here's a subscription you can't refuse

WebSockets are mostly associated with the asynchronous capabilities of JavaScript. But it doesn't have to be JavaScript all the way down.

In this talk, you will learn how to pair Django, Channels, and Ariadne to leverage the power of GraphQL subscriptions, in a few lines of code!


Django è un framework così completo che quasi non sembra vero. Ma i problemi iniziano dopo, quando Django stesso impone di usare strumenti come le task queue.

In questo talk vedrai come sfruttare Django Q per aggirare il problema, e cosa significa lavorare con il codice asincrono in Django.



React è a tutti gli effetti lo standard de facto per lo sviluppo di interfacce web interattive. Ma lo strapotere durerà per sempre? Svelte 3 potrebbe insidiare il trono che React ormai occupa da qualche anno. In questo talk vedremo insieme cos’è Svelte 3, in cosa è diverso da React e perché dovrebbe essere preso in considerazione.



With the rise of JavaScript as the lingua-franca of the web and the steady growth of libraries like React, today’s web developers can build rich and well structured frontend experiences. Pair that with Django and Django REST framework and you get the perfect combination.

But it’s not all bells and whistles. What challenges are we going to face when decoupling Django with Django REST? What are the best practices? How to structure such a project? In this talk I’ll guide Django developers (both beginners and intermediate) from 0 to structuring a decoupled Django project.