Leandro Proença

Programmer • I occasionally write blog posts in both English and Brazilian Portuguese.

Brazil Joined on Aug 8, 2017 https://leandronsp.com

Education

BSc, Information Systems

Work

Software Developer

chespirito

A dead simple, yet Rack-compatible, web framework written in Ruby

Ruby • 5 stars

56 posts published

64 comments written

0 tags followed

Pinned

Leandro Proença

May 19

AI & Ruby: an introduction to neural networks

#ruby #machinelearning #ai #neuralnetworks

12 min read

Leandro Proença

Mar 17

SQL JOIN explained

#sql #database #postgres

13 min read

Leandro Proença

Mar 15

Git fundamentals, a complete guide

#git #linux

309

18 min read

Leandro Proença

Feb 23

Kubernetes 101, part I, the fundamentals

#kubernetes #k8 #docker #containers

285

6 min read

Leandro Proença

Sep 8

Rust, Go, Rinha e I/O

#braziliandevs #rust #ruby #go

9 min read

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Leandro Proença

Jun 23

Entendendo fundamentos de recursão

#programming #ruby #braziliandevs

7 min read

Leandro Proença

Jun 6

Vencendo os números de ponto flutuante: um guia de sobrevivência

#computerscience #braziliandevs

14 min read

Leandro Proença

Jun 1

Winning at floating-point issues: a survival guide

#computerscience #softwareengineering #programming

11 min read

Leandro Proença

May 24

[pt-BR] Fundamentos do Git, um guia completo

#git #linux #braziliandevs

18 min read

Leandro Proença

May 13

Kubernetes 101, part VIII, networking fundamentals

#kubernetes #docker

11 min read

Leandro Proença

Apr 29

Kubernetes 101, part VII, jobs and cronjobs

#kubernetes #docker

3 min read

Leandro Proença

Apr 28

A comprehensive introduction to Ruby

#ruby #rails

11 min read

Leandro Proença

Apr 5

Kubernetes 101, part VI, daemonsets

#kubernetes #docker

4 min read

Leandro Proença

Apr 1

Kubernetes 101, part V, statefulsets

#kubernetes #docker

7 min read

Leandro Proença

Mar 12

Kubernetes 101, part IV, deployments

#kubernetes #docker

5 min read

Leandro Proença

Mar 12

Kubernetes 101, part III, controllers and self-healing

#kubernetes #docker #k8s #containers

4 min read

Leandro Proença

Mar 1

Kubernetes 101, part II, pods

#kubernetes #docker #k8s #containers

5 min read

Leandro Proença

Feb 22

Tekton CI/CD, the grand finale, interceptors

#kubernetes #docker #agile

7 min read

Leandro Proença

Feb 21

Tekton CI/CD, part IV, continuous delivery

#kubernetes #docker #linux #agile

6 min read

Leandro Proença

Feb 19

Tekton CI, part III, listen to Github events

#tutorial

7 min read

Leandro Proença

Feb 19

Tekton CI, part II, sharing information

#kubernetes #ci #linux #docker

5 min read

Leandro Proença

Feb 19

Tekton CI, part I, a gentle introduction

#kubernetes #ci #linux #docker

4 min read

Leandro Proença

Feb 19

CI/CD in a nutshell

#ci #cd #software #engineering

4 min read

Leandro Proença

Oct 21 '22

Seu dinheiro não é infinito

#leadership #management #technology

3 min read

Leandro Proença

Sep 17 '22

Liderança começa com confiança: minha trajetória

7 min read

Leandro Proença

Aug 9 '22

Thinking like containers

#docker #linux

6 min read

Leandro Proença

Aug 6 '22

Simulating OOP in Bash

#oop #bash #linux

6 min read

Leandro Proença

Aug 1 '22

Building a Web server in Bash, the grand finale

#webdev #html #css #javasccript

4 min read

Leandro Proença

Aug 1 '22

Building a Web server in Bash, part III - Login

#webdev #linux #html #shellscript

7 min read

Leandro Proença

Aug 1 '22

Building a Web server in Bash, part II - parsing HTTP

#webdev #http #linux #shellscript

5 min read

Leandro Proença

Aug 1 '22

Building a Web server in Bash, part I - sockets

#webdev #http #linux #shellscript

316

6 min read

Leandro Proença

Jul 14 '22

Inter-process communication: pipes

#unix #linux

2 min read

Leandro Proença

Jul 13 '22

Inter-process communication: files

#unix #linux

5 min read

Leandro Proença

Jul 12 '22

A brief history of modern computers, multitasking and operating systems

#unix #linux #operatingsystems #threads

7 min read

Leandro Proença

Jul 6 '22

Métricas cAdvisor no Kubernetes com Prometheus e Grafana

#kubernetes #prometheus #grafana

7 min read

Leandro Proença

Jul 6 '22

Prometheus on Kubernetes 101

#prometheus #kubernetes #docker

4 min read

Leandro Proença

Jul 5 '22

Mastering the Docker networking

#docker #linux #nginx

140

5 min read

Leandro Proença

Jun 15 '22

Implementando um simples background job com UNIX named pipes

#unix #linux #pipes

3 min read

Leandro Proença

Jun 15 '22

Entendendo UNIX pipes

#unix #linux #pipe

3 min read

Leandro Proença

Jun 13 '22

Resolvendo problema de performance no PostgreSQL com CTE

#sql #postgres #cte

4 min read

Leandro Proença

Mar 3 '22

A very simple GraphQL tutorial in Ruby

#ruby #graphql

3 min read

Leandro Proença

Feb 5 '22

Mastering Docker Volumes

#docker #containers #linux

5 min read

Leandro Proença

Dec 4 '21

How to reduce the time complexity of nested loops

#programming #ruby #algorithms

156

4 min read

Leandro Proença

Sep 16 '21

A powerful full-text search in PostgreSQL in less than 20 lines

#postgres

9 min read

Leandro Proença

Aug 10 '21

A CRUD journey in Haskell, part II, Socket programming

#haskell #networking #tcp #ruby

4 min read

Leandro Proença

Aug 3 '21

A CRUD journey in Haskell, part I, introduction

#haskell #programming #functional

5 min read

Leandro Proença

Jun 29 '21

Using Docker in development the right way

#docker #containers

201

5 min read

Leandro Proença

May 9 '21

Web basics: sending HTML, CSS and Javascript content through HTTP

#ruby #html #css #javascript

5 min read

Leandro Proença

May 3 '21

Web basics: a simple HTTP Server in Ruby

#ruby #tdd #http

4 min read

Leandro Proença

Apr 30 '21

Web basics: a TCP Server in Ruby

#ruby #tcp #http #programming

3 min read

Leandro Proença

Apr 28 '21

Boilerplate for a containerized plain Ruby application

#ruby #tdd #docker #makefile

3 min read

Leandro Proença

Apr 16 '21

Quicksort, a Ruby implementation using Test-driven development

#ruby #quicksort #algorithms #tdd

7 min read

Leandro Proença

Apr 14 '21

Deploy to Kubernetes using Github Actions (including Slack notification)

#github #aws #eks #kubernetes

4 min read

Leandro Proença

Apr 10 '21

Ruby blocks made easy, part III ~grand finale~, blocks and syntactic sugar

#ruby #programming #softwaredevelopment

5 min read

Leandro Proença

Apr 10 '21

Ruby blocks made easy, part II, curry and procs as arguments

#ruby #programming #softwaredevelopment

3 min read

Leandro Proença

Apr 10 '21

Ruby blocks made easy, part I, methods and procs

#ruby #programming #softwaredevelopment

4 min read

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