Xavier Portilla Edo

CORE

Head of Cloud Infrastructure at Voiceflow

Madrid, ES

Joined Mar 2020

https://xavidop.me/

About

Xavier hails from Valencia. He has earned degrees from the Polytechnic University of Valencia. He is a software developer with more than 5 years of experience; ranging from health to industry sector, learn and research, at everything from startups to the largest companies in the world, and working in-office to remote.

Stats

Reputation:	2381
Pageviews:	373.0K
Articles:	32
Comments:	1

Expertise

DevOps and CI/CD

Articles
Comments

Articles

Genkit Middleware: Intercept, Extend, and Harden your Gen AI Pipelines

A deep dive into the new Genkit middleware system for JavaScript/TypeScript: built-in middleware, how to build your own.

May 18, 2026

· 2,658 Views

Vercel AI SDK Middleware vs Genkit Middleware: A Hands-On Comparison

A side-by-side comparison of the two leading middleware systems in the JS/TS Gen AI ecosystem: Vercel AI SDK and Genkit.

May 15, 2026

· 1,280 Views

Stop Using Python for Your GenAI Apps, Use Go and Genkit Instead

Python has dominated the GenAI conversation, but it is neither the only nor the best option for production. Here is why Go is a stronger bet.

May 11, 2026

· 1,949 Views · 1 Like

Comparing Top Gen AI Frameworks for Java in 2026

A practical, in-depth comparison of the top Generative AI frameworks for Java in 2026: Genkit Java, Spring AI, LangChain4j, and Google ADK

May 7, 2026

· 3,185 Views · 2 Likes

Top JavaScript/TypeScript Gen AI Frameworks for 2026

A practical, in-depth comparison of the top generative AI frameworks in 2026, coming from someone who has built with all of them.

May 6, 2026

· 2,529 Views · 2 Likes

A Practical Guide to Building Generative AI in Java

Genkit Java makes building generative AI features in Java finally simple. With typed inputs/outputs, structured LLM responses, built-in observability, a powerful DevUI.

February 26, 2026

· 2,884 Views · 2 Likes

Building a Weather Service With Genkit and AI

AI-powered weather service using Genkit, TypeScript, OpenWeatherAPI, and GitHub Models. Uses OpenAI o3-mini for AI responses.

March 4, 2025

· 5,371 Views · 1 Like

Building NLU Flows With Firebase GenKit and GitHub Models Powered by LLMs

Learn how to set up an NLU flow using Firebase Genkit AI and Firebase Functions to detect intents and entities from text using GitHub Models.

November 13, 2024

· 872 Views · 2 Likes

The Evolution of Conversational AI: Blending Determinism With Dynamism

Learn how the future of conversational AI lies in the seamless integration of deterministic workflows and dynamic, creative responses.

August 28, 2024

· 4,968 Views · 2 Likes

LangChain Language Correctness Detector

Learn how to detect grammatical errors, sentiment, and aggressiveness in text using Langchain and OpenAI or Google Cloud language models.

August 27, 2024

· 3,975 Views · 1 Like

Firebase Genkit With Ollama

Explore a Firebase project that uses the Gen AI Kit with Gemma using Ollama and learn how to test it locally with the Firebase emulator and the Gen UI Kit.

May 27, 2024

· 2,152 Views · 1 Like

Integrate Alexa With Voiceflow

How to integrate Alexa and Voiceflow to put a focus on the conversation design instead of coding. This will help you to leverage better conversations!

November 22, 2023

· 3,410 Views · 2 Likes

A Guide About Dialogflow CX Webhook Development

In this article, follow an introduction to how to develop your Dialogflow CX webhooks from the Dialogflow CX console to your laptop.

February 1, 2023

· 2,403 Views · 2 Likes

Dialogflow CX CLI: The Missing CLI To Interact With Your Agents

This post serves as an introduction to Dialogflow CX CLI, a powerful tool that will help you during your day-to-day tasks while you are developing your bots.

January 30, 2023

· 3,389 Views · 1 Like

How to Properly Test Your Dialogflow CX Agents

Learn how to properly set your Dialogflow CX agents and see how easily you can create tests and set CI/CD pipelines either with the console or the CX CLI.

January 28, 2023

· 5,074 Views · 1 Like

Dialogflow CX Entity Types

Learn what a Dialogflow CX entity type is and how easy it is to create entity types and evolve your NLU in Dialogflow CX, either with the console or the CX CLI!

January 26, 2023

· 4,032 Views · 1 Like

Dialogflow CX Intents

Explore this tutorial to learn how to easily create intents and evolve your NLU in Dialogflow CX, using either the console or the CX CLI.

January 24, 2023

· 2,973 Views · 4 Likes

Dialogflow CX Agents

This tutorial serves as an introduction to Dialogflow CX agents and how to interact with them using the console and the CXCLI.

January 23, 2023

· 3,062 Views · 1 Like

News Roundup From KubeCon Europe 2022

The dust has settled following a wildly successful KubeCon/CloudNativeCon 2022 in Valencia, Spain. Learn about the wide range of exciting announcements made there.

Updated June 6, 2022

· 4,194 Views · 1 Like

Multimodal Design With Google Actions: Rich Responses Using Cards

In this article, we will learn how to create engaging conversations using multimodality in our Google Action thanks to its Rich Responses using Cards.

December 29, 2021

· 4,969 Views · 2 Likes

Google Action With Node.js

In this tutorial, you will learn how to create a Google Action using Google actions CLI and NodeJS. Read on to find out how to do this yourself!

December 28, 2021

· 8,431 Views · 4 Likes

How to Work With Alexa Entities

With Alexa Entities, you can build engaging Skills with rich content

November 18, 2021

· 10,883 Views · 2 Likes

New VS Code Debugging Tools for Alexa

Take a look at the new tools launched by the Amazon Alexa team for Visual Studio Code, and learn how to have a full development environment with these tools.

November 16, 2021

· 6,594 Views · 1 Like

Pipeline of an Alexa Skill with GitHub Actions

In this article, we discuss how to implement a Devops pipeline for your Alexa Skill using GitHub Actions.

September 21, 2020

· 7,080 Views · 3 Likes

Alexa Skill With Local DynamoDB

In this article, take a look at how to do database mocking.

April 22, 2020

· 7,841 Views · 2 Likes

Alexa Skill With Python

In this article, let's see how to create a custom skill for Alexa using Python, npm, and AWS Lambda Functions.

Updated April 22, 2020

· 12,950 Views · 3 Likes

Alexa Skill With Node.js

In this article, we implement a custom Skill for Amazon Alexa by using Node.js, npm, and AWS Lambda Functions.

Updated April 20, 2020

· 22,326 Views · 4 Likes

Alexa Skill With .NET Core

In this article, we discuss how to program an Alexa Skill with Alexa Lambda functions and a REST API in C# and .NET Core.

Updated April 20, 2020

· 14,403 Views · 3 Likes

Alexa Skill With TypeScript

in this article, we demonstrate how to create a custom Alexa Skill application with Node.js, TypeScript, and AWS Lambda Functions.

April 16, 2020

· 10,804 Views · 4 Likes

Alexa Skill With Spring Boot

This project will walk through how to build an Alexa Skill with Spring Boot and Http Servlet mapping examples.

April 7, 2020

· 13,205 Views · 6 Likes

Comments

Alexa Skill With TypeScript

May 06, 2020 · Xavier Portilla Edo

This example is made with ASK CLI v1. Local debugger is an external amazon tool that you can find in their github https://github.com/alexa/alexa-cookbook/tree/master/tools/LocalDebugger