Platform Engineering: what it is and how it accelerates dev teams
Platform Engineering creates self-service internal platforms that abstract infrastructure. See benefits, differences from DevOps and how to adopt it.
Henrico Piubello
Hello! I'm Henrico Piubello, a full stack developer with a deep love for web and mobile technologies.
With several years of experience in this exciting field of programming, I can say I'm passionate about creating innovative and functional solutions. I believe finding the perfect balance between functionality and design is essential to deliver amazing user experiences.
Beyond my technical skills, I'm an avid writer and author of my own blog. Writing about technology and sharing my knowledge with the developer community is a true passion of mine. I believe knowledge should be shared so we can grow together as professionals and as human beings.
On my blog I cover a wide range of topics, from the latest trends in development to practical tips to help other developers sharpen their skills. The goal is to provide valuable and inspiring content for everyone looking to dive deeper into this fascinating world of programming.
I believe in the power of collaboration and continuous learning. I love sharing what I know and learning from others, because I believe that's how we grow as professionals and as people. The technology field is in constant evolution, and I'm always eager to learn something new and apply it to my projects.
I hope my blog can be a source of inspiration and knowledge for you. Feel free to explore my articles, ask questions or share your own ideas. Together we can build a welcoming and collaborative development environment.
## articles
Articles by Henrico Piubello
Design Patterns: what they are and how to apply them in software
Design Patterns are reusable solutions to recurring software design problems. See categories, practical examples, and when to apply each one.
Technology salaries in Brazil: a guide by role and level
How much do people who work in tech earn in Brazil? See salary ranges by role and seniority, the factors that matter, and how to negotiate better.
AI for Customer Service: A Complete and Practical Guide
AI for customer service uses chatbots, voicebots, and data analytics to automate and personalize support. See types, advantages, and how to implement.
AI for marketing: personalization and results at scale
AI in marketing automates campaigns, personalizes the journey at scale, and optimizes ads with data. Learn the benefits, tools, and how to get started.
Oracle Cloud Infrastructure (OCI): what it is and features
Oracle Cloud Infrastructure (OCI) is Oracle's 2nd-generation cloud. Understand the bare metal architecture, Autonomous Database, services and when to adopt it.
Low-Code: what it is, advantages, and when to use it
Low-code accelerates software creation with visual interfaces and ready-made components, requiring minimal coding. See advantages, risks, and when to adopt.
Internet of Things (IoT): what it is and how it works
The Internet of Things (IoT) connects physical objects with sensors to the internet to collect and exchange data and automate processes in homes, cities, and industries.
Autonomous vehicles: how they work and levels of automation
Autonomous vehicles use sensors, AI, and software to drive without human intervention. Understand how they work and the 6 SAE levels of automation (0 to 5).
Claude Code: Anthropic''s AI agent in the terminal
Understand what Claude Code is, Anthropic''s coding agent in the terminal: it reads the repository, edits files, runs tests, and opens pull requests.
Gaming PC: components, how to build and tips in 2026
A gaming PC is a computer optimized for games. Understand each component (GPU, CPU, RAM, SSD), how to build by budget and the choices that matter.
Windows: the dominant operating system and its future
Windows is Microsoft's desktop operating system and the global market leader, today focused on AI with Copilot and on integration with the Azure cloud.
MySQL: the relational database of the modern web
MySQL is the most used open source RDBMS on the web and the 2nd most popular database in the world (DB-Engines, 2026), the base of sites, e-commerce and SaaS.
AI for Healthcare: what it is and how it transforms care
AI for healthcare uses machine learning to analyze medical data, support diagnoses, accelerate drugs, and personalize treatments with greater precision.
Google Cloud: What It Is, Services, Prices, and How to Get Started
Google Cloud is the Google cloud platform with computing, data, and AI services across 43 regions, $20B in revenue in Q1 2026.
Plugin Development: How to Extend Software
A plugin is a module that adds functions to an application via APIs and extension points, without changing the source code. See types, advantages, and how to create one.
WebSockets: real-time bidirectional communication on the web
WebSocket is a protocol that keeps a persistent, full-duplex TCP connection between client and server, the foundation of chats, games, and real-time dashboards.
Automation with AI: What it is, how it works, and where to apply it
Automation with AI combines RPA with machine learning, NLP, and computer vision to perform complex tasks, make decisions, and learn without human intervention.
Side projects: what they are and how they boost your career
Side projects are personal projects built outside work to learn technologies, build a portfolio, and open career opportunities in tech.
Quantum Computing: What it is and how qubits work
Quantum computing is the paradigm that uses qubits in superposition and entanglement to solve problems intractable for classical computers.
iOS Development: a complete guide to building Apple apps
iOS development guide: learn to build apps for iPhone and iPad with Swift, Xcode, and SwiftUI, from requirements and costs to publishing on the App Store.
Observability: what it is, pillars and how to implement it
Observability is inferring a system's internal state from its logs, metrics and traces — essential for diagnosing modern distributed systems.
Strategic Remote Work: A Guide for Teams in 2026
A guide to strategic remote work: fundamentals, tools, culture, and the hybrid future of high-performance tech teams in 2026.
Modern Web Development: Architectures and Methodologies
Modern web development combines architectures like microservices and serverless with agile practices and DevOps to create scalable, secure applications.
GPU: how graphics cards drove the AI era
A GPU is a processor with thousands of parallel cores that accelerates neural network training, scientific simulations and graphics rendering.
How to build a standout GitHub: a guide for devs
A standout GitHub combines a profile README, organized repositories, projects with tests, and descriptive commits. See the step-by-step.
Is It Worth Studying Programming in 2026?
Yes, it is worth it: Brazil graduates only 53 thousand IT professionals per year against a much larger demand, and AI amplifies the value of those who can program.
JavaScript vs TypeScript: which to choose for your project?
TypeScript adds static typing to JavaScript and reduces errors in large projects; JavaScript remains ideal for prototypes and simple projects.
COBOL: what it is and why it is still worth learning in 2026
COBOL is a 1959 language for business systems that still processes much of banking transactions; the talent shortage keeps demand high.
Delphi Programming Language: Guide and Uses in 2026
Delphi is an object-oriented language based on Object Pascal, used to create native apps for Windows, macOS, iOS, and Android via RAD Studio.
Kali Linux: what it is, what it is for, and how to install it
Kali Linux is a Debian-based distribution, maintained by OffSec, with hundreds of pentest tools for security auditing and ethical hacking.
What is a pentest? Penetration testing explained
A pentest, or penetration test, is a simulated and authorized attack that looks for vulnerabilities in systems to fix them before hackers exploit them.
Java vs Go: which language to choose for your project?
Java offers a mature ecosystem and portability via the JVM; Go delivers lightweight binaries and native concurrency with goroutines. Compare performance and use cases.
What is Scratch? A block programming guide
Scratch is the MIT block-based programming language for beginners. See what it is, how it works, how to start for free and why it teaches logic.
What is SSH: secure connection between servers
SSH (Secure Shell) is an encrypted protocol that allows accessing and administering remote servers securely over port 22, replacing Telnet.
Google Maps API: What it is, how to implement it, and how much it costs
The Google Maps API lets you embed interactive maps, routes, and geolocation in websites and apps; it requires an API key and offers 10,000 free calls per month.
Facebook Graph API: what it is and how to implement
The Graph API is Meta official HTTP interface for reading and publishing Facebook data. See how to register the app, authenticate users and make calls.
Cowsay API: how to use the talking cow in the terminal
Cowsay is a command-line tool that displays messages in the speech bubble of an ASCII cow. Install via apt or npm and customize with the -f flag.
How to Get Started with React: A Step-by-Step Guide for Beginners
React is the most used JavaScript library for building web interfaces. Learn to create your first app with Node.js, npx, and Vite step by step.
npx: what it is and how to run npm packages without installing
npx is npm's package runner: it runs CLI tools from the registry without global installation. See how it works, examples, and differences from npm.
25 Quotes on Technology and Programming from Great Names
A collection of 25 quotes on technology and programming, from Steve Jobs to Grace Hopper, with author, context and the meaning of each quote.
How to integrate MongoDB with Next.js: a step-by-step tutorial
Learn to integrate MongoDB with Next.js using the official with-mongodb example: create the app, configure MONGODB_URI, and deploy to Vercel.
Docker: What It Is, How It Works, and Essential Commands
Docker is the container platform that packages applications with their dependencies. See how it works, differences from VMs, and essential commands.
PHP: what it is, what it is for, and how to get started in the language
PHP is an open-source language for web development that runs on 71.8% of sites with a known server-side language (W3Techs, 2026).
Servers and AWS: how to program in the cloud in 2026
Servers provide data and services over the network; AWS hosts that infrastructure in the cloud, leading with 28% of the market. See types, DevOps, and backend.
Package Managers: npm, Yarn, pnpm and More
Package managers automate installing and updating dependencies. Compare npm, Yarn, pnpm, Chocolatey, and Homebrew and learn which to use.
Terminal Commands: A Guide for Windows, Mac, and Linux
A guide to essential terminal commands: dir, cd, and ipconfig in Windows CMD; ls, cp, mv, and grep in the Mac Terminal and the Linux shell.
NumPy: what it is and what the Python library is for
NumPy is the Python library for numerical computing that provides multidimensional arrays and fast vectorized operations for data and science.
Golang: what it is, what it is for, and how to get started in the language
Go (Golang) is a compiled open-source language created at Google, with native concurrency via goroutines, used in APIs, cloud, and microservices.
Why Do Nerds Like Programming? Passion and Code
Nerds like programming because it unites logic, problem solving and creation — and 68% of developers code as a hobby outside of work.
Data Structures: Arrays, Stacks, Queues, Trees, and Hash
Data structures organize information in memory: arrays and lists hold collections, stacks and queues control order, and hash tables speed up lookups.
Euclidean Distance: What It Is, Formula, and Uses in Python
Euclidean distance is the straight-line measure between two points, obtained by the root of the sum of squared differences; it is the basis of KNN and K-Means.
Mock Objects: what they are and how to use them in tests
Mock objects are dependency simulations used in unit tests to isolate code, speed up execution and verify interactions without databases or APIs.
The Ruby language: what it is, syntax, and Ruby on Rails
Ruby is a dynamic, object-oriented language created by Yukihiro Matsumoto, used in web development with Ruby on Rails, automation, and scripts.
What is CSS? A guide to the web styling language
CSS (Cascading Style Sheets) is the language that defines colors, typography, and layout of HTML pages, used by 62% of devs according to Stack Overflow.
Java Programming Language: A Complete Guide to Learn
Java is an object-oriented language that runs on any system via the JVM. See how to install the JDK, learn the syntax, and grow in your career.
Boundary Value Analysis: What It Is and How to Apply It in Testing
Boundary value analysis is the black-box technique that tests the extremes of input partitions, where most software defects concentrate.
The C language: what it is and how to start programming
C is a compiled language close to the hardware, created by Dennis Ritchie in 1972, used in operating systems, drivers, and embedded systems.
Computer Graphics: What It Is, How It Works, and Where It''s Used
Computer graphics is the field that generates, manipulates, and displays images through algorithms and GPUs, used in games, film, design, medicine, and simulation.
Network Latency: How to Calculate Total Packet Delay
The total delay of a packet is the sum of processing, queuing, transmission, and propagation delays. See the formula, an example in ms, and how to measure it.
White-Box vs. Black-Box Testing: A Practical Guide
White-box testing analyzes the internal source code; black-box testing validates behavior through inputs and outputs. Learn when to use each strategy.
Cyclomatic Complexity: What It Is and How to Calculate It
Cyclomatic complexity is McCabe''s metric that measures independent paths in code. Values up to 10 are considered safe, according to the NIST.
Types of Linear Regression: Simple, Multiple, Ridge, and Lasso
Meet the types of linear regression — simple, multiple, polynomial, Ridge, and Lasso — with equations, use cases, and criteria for choosing the right model.
Artificial Intelligence in Medicine: Benefits and Risks
AI in medicine accelerates diagnoses and personalizes treatments: the FDA has already authorized more than 1,250 AI-enabled devices. See benefits and risks.
Virtual Reality in Rehabilitation: How It Works
Virtual reality in rehabilitation uses immersive environments to accelerate motor and neurological recovery, raising patient motivation and safety.
How to enter the metaverse: step by step and platforms
To enter the metaverse, create an account on platforms like Roblox or Decentraland and access it from a phone, PC, or VR headset.
Blockchain Use Cases: 6 Real Applications in 2026
Blockchain is used in payments, supply chains, smart contracts, digital identity, voting, and land registry. See real cases.
Distributed DNS: why the internet has no central server
DNS is distributed to eliminate single points of failure: 13 root servers with more than 2,000 instances keep the internet running even under attack.
Data Mining vs Machine Learning vs Deep Learning
Data mining discovers patterns in existing datasets; machine learning trains models that learn; deep learning uses deep neural networks.
How to Create Machine Learning Projects: A 5-Step Guide
Machine learning projects require data preparation, suitable algorithms, iterative pipelines, scalability, and metrics like recall and F1-Score.
Gatekeeper and UBA: User Behavior Analytics
UBA monitors user behavior to detect anomalies; integrated with Gatekeeper, it exposes internal threats that authentication alone cannot see.
Types of Gatekeeper: Hardware, Software, and Cloud
The three types of gatekeeper are hardware, software, and cloud. Compare how each controls access, its costs, and when to use each security solution.
Gatekeeper Implementation: Challenges and How to Overcome Them
The 4 biggest challenges when implementing a Gatekeeper: legacy integration, training, access policies, and compliance — with practical strategies.
Gatekeeper and Remote Access: How to Protect Data?
Gatekeeper protects remote access with MFA, granular access policies and auditing, releasing corporate data only to authorized users.
Gatekeeper and MFA: how to strengthen enterprise security
MFA requires two or more authentication factors and, integrated with the Gatekeeper, reduces the risk of compromised enterprise accounts by 99.22%.
What is SMTP: the essential email sending protocol
SMTP (Simple Mail Transfer Protocol) is the standard protocol that transfers emails between mail servers over TCP on port 25, defined in RFC 5321.
Software testing: types, tools, and best practices
Software testing checks whether a system works as expected and detects bugs before delivery, reducing costs, risks, and rework.
7 Most Used Programming Languages in the World in 2026
Python, JavaScript, Java, C++, C, C# and Go lead TIOBE, Stack Overflow and GitHub rankings in 2026. See where each one shines and which to learn.
Junior, Mid-level, and Senior Dev: what is the difference in practice?
A junior dev needs supervision, a mid-level works autonomously, and a senior leads complex projects, mentors the team, and makes architecture decisions.
Semantic HTML: what it is, tags and how it improves SEO
Semantic HTML uses tags like header, nav, main and article to describe the meaning of content, improving accessibility, SEO and machine readability.
Network Communication: Protocols, the OSI Model, and TCP/IP
Network communication is the exchange of data between devices governed by protocols. Learn the 7-layer OSI Model, TCP/IP, and service models.
What are Big Techs? Impact and dominance of the giants
Big Techs are technology giants like Google, Apple, Amazon, Microsoft and Meta that dominate the digital economy, data and innovation on a global scale.
DHO: What is Organizational Human Development?
DHO (Organizational Human Development) is the HR subsystem that trains, engages, and retains talent, aligning people with the business strategy.
IT Project Management: Methodologies and Strategies
IT project management: how to plan, prioritize, and choose between Scrum, Kanban, and Scrumban to deliver technology on time and on budget.
Top programming languages in 2026
Python leads the IEEE Spectrum and Stack Overflow rankings in 2026, followed by JavaScript, SQL, Java and the C languages in the most demanded jobs.
Programmer''s Day: why is it celebrated on September 13?
Programmer''s Day is celebrated on the 256th day of the year, September 13, because 256 is the total number of possible values in an 8-bit byte.
Semantic versioning (SemVer): what it is and how to use it
Semantic versioning (SemVer) is the MAJOR.MINOR.PATCH standard that communicates the impact of each release and helps avoid dependency hell.
Data Pipeline: what it is and how it works
A data pipeline is a series of automated processes that collect, transform and move data from source to destination for analysis and decision making.
What is FinOps? The guide to cloud cost management
FinOps unites finance and engineering to control cloud spending. Learn the principles, the three pillars (inform, optimize, operate) and the benefits.
Georeferencing: what it is and how it works
Georeferencing is the process of assigning geographic coordinates to data or objects, allowing them to be located and analyzed precisely on a map.
Developer resume: how to create one that impresses
An effective developer resume is 1–2 pages long, tailors skills to the job, proves results with numbers, and includes links to GitHub and LinkedIn.
10 Sites with Programming Challenges to Practice
Meet 10 sites with programming challenges — HackerRank, LeetCode, Codeforces, and more — to train algorithms, data structures, and logic.
Programming Logic: What It Is, Concepts, and How to Learn
Programming logic is the foundation for creating algorithms: understand variables, conditionals, loops, and data structures with practical examples in Python.
LGPD: what it is, data subjects'' rights and company duties
The LGPD is the Brazilian law that regulates the use of personal data. Understand principles, legal bases, data subjects'' rights and companies'' obligations.
AI Tools for Design: 6 Image Generators
Midjourney, DALL-E, Leonardo AI, Stockimg, Bing Image Creator, and BlueWillow: compare six AI tools that generate images from text.
5 Sites to Learn CSS by Playing: Flexbox and Grid
Flexbox Froggy, Flexbox Zombies, Grid Garden, Flexbox Defense and Grid Critters teach CSS Flexbox and Grid with interactive browser games.
Automation Chatbots: 4 Tools to Sell More
ManyChat, BotConversa, ConvertoBot, and ActiveCampaign automate customer service and marketing to sell more on WhatsApp, Instagram, and email.
Threads: Instagram's social network and Twitter rival
Threads is Meta's text-conversation social network, integrated with Instagram and the fediverse via ActivityPub, with about 500 million monthly users.
What is blockchain and how does it work?
Blockchain is a distributed and immutable ledger that stores transactions in blocks chained by cryptography and validated by consensus, without intermediaries.
7 Sites to Practice JavaScript with Real Challenges
HackerEarth, Edabit, CodinGame, Codewars, LeetCode, HackerRank and CodeChef offer free challenges to practice JavaScript online.
Framework: what it is, how it works, and which to choose in 2026
A framework is a reusable code structure that standardizes and accelerates software development. See the types, examples, and how to pick yours.
Types of Frameworks: Web, Mobile, Data, and Games
Frameworks are reusable code structures that accelerate projects. Meet the types for web, mobile, data science, games, and IoT.
How to Study Machine Learning: A Guide to Methods and Resources
To study Machine Learning, start with Python, statistics, and linear algebra, move on to algorithms, and practice on real projects on Kaggle.
Linear Regression: What It Is, How to Model and Evaluate
Understand linear regression: how it models relationships between variables with a line, predicts continuous values, and is evaluated with R², RMSE, and residual analysis.
Gatekeeper: what it is and how it protects digital access
Understand what a Gatekeeper is, the access control mechanism that authenticates users, enforces permission policies and blocks unauthorized access.
Metaverse: what it is, how it works and the future of the internet
The metaverse is a shared 3D virtual space that combines virtual reality, augmented reality and blockchain so people can interact, work and trade online.
Windows, Linux or macOS: which operating system to choose?
Windows leads in compatibility and games, macOS in integration and stability, Linux in free customization and ChromeOS in cloud simplicity.
Artificial Intelligence Applications: Examples and Real Uses
AI is already applied in medicine, digital security, industry, routing, customer service, and marketing. See real examples, the risks, and how to start studying.
How to Choose a Notebook: A Guide to Processor, RAM, and SSD
To choose a notebook, define the use: basic tasks call for a Core i3 or Ryzen 3, 8 GB of RAM, and an SSD; heavy work demands an i5/i7, 16 GB, and a Full HD screen.
Machine Learning: what it is, how it works and where it is used
Machine Learning is the field of AI in which algorithms learn patterns from data to predict, classify and decide without explicit programming.
What is Python? A beginner's guide with examples
Python is a high-level, interpreted and multiparadigm language, used in data science, AI, automation and web. See examples and how to start.