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igor giamoniano - coisa de dev

@Igor Giamoniano - Coisa de Dev

Igor Giamoniano

Linux kernel contributor | Founder of Coisa de Dev | Python, Rust, Elixir
São Paulo, Brazil github.com/igorgbr Joined December 2025
2.4k Points • 57 Badges • 13 Connections • 13 Followers • 17 Following
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About

Teacher and developer from Brazil, founder of Coisa de Dev, where I teach Linux, open source and DevSecOps in Portuguese.

I contribute to open source and write down what I learn d... Show more

Top Skills

Elixir • Node.js • Python • OutSystems

Experience

Application development with specialization in OutSystems.

SysManager
Sep 2023 - Present

Currently working on project modernization initiatives for Petrobras S.A.

- Modernizing legacy applications using OutSystems
- Building responsive applications from Designer models
- Analyzing legacy code (C#, Java) for migration and adaptation to OutSystems
- Creating BDD (Behavior-Driven Development) frameworks for automated testing
- Actively participating in Agile ceremonies (Daily Meetings, Refinement, Retrospectives, and Sprint Reviews)

Junior Software Developer

Trybe
Feb 2022 - May 2022

- Full-stack development using React.js, Node.js, Elixir, and Phoenix.
- Committed to application health through maintenance and proactive improvements.
- Writing integration and unit tests using ExUnit.
- Participating in squad ceremonies (planning, stand-ups, reviews, retrospectives).
- Providing technical support to all company team members for bug resolution and feature requests.

Backend Instructor

Trybe
Mar 2021 - Jan 2022

As an instructor:
- Provided support to lead instructors during live classes.
- Collaborated with the curriculum team on maintaining and updating teaching materials.
- Designed and delivered special sessions following active learning methodology standards.
- Developed and led mentoring sessions for students.

Key achievements:
- Created the "Ficar Ontrack Project" for one of the cohorts, which significantly improved final project completion rates and received excellent feedback from students regarding their learning experience.
- Founded the "Lógica Academy" for Batch 19, enabling volunteer students to build extra projects for their portfolios.
- Participated in the creation and execution of the T-19 Hackathon as a mentor and evaluator.
- Served as an evaluator in the T-23 Hackathon.
- Delivered cross-cohort talks as a speaker, explaining Trybe’s Active Learning Methodology to students.
- Supported the collection of insights and data for one of the program’s major continuous improvement initiatives: NS600.

Education

Faculdade Sumaré

Pós graduação, Data Science, Big Data and IoT
2020 - 2020

Faculdade Sumaré

Technology, Internet Systems
2018 - 2019

Licenses & Certifications

Linux Essentials

LinuxTips
Issued Nov -0001
Credential ID 637b790d9ed244787509f4c9
Show Credential open_in_new

Agile Fundamentals in Azure DevOps

SysManager
Issued Nov -0001 Show Credential open_in_new

Elixir & Phoenix

Udemy
Issued Nov -0001
Credential ID UC-fd8f148b-5e51-4ef8-a0bb-3072689ca0f3
Show Credential open_in_new

Language & Tools

Python, Elixir, Rust, Bash, Linux (Fedora), Docker, Git

Currently Exploring

Rust in real codebases instead of tutorials: uutils/coreutils is my current classroom. Also how large open source projects actually run, which is the part no tutorial covers: reviews, CI, licensing.

Achievements

Documentation patch accepted into the Linux kernel (pt-BR translation). Contributor at uutils/coreutils, the Rust rewrite of GNU coreutils. Contributor at TimeConv, including a bug that had been open for four years.

Random Dev Quote

"Never trust a computer you can't throw out a window." - "iWoz" Wozniak

Latest Video

Top Tags

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Contributions
Joined: 8 months (since Dec 18, 2025)
Full Name: Igor Giamoniano
Headline: Linux kernel contributor | Founder of Coisa de Dev | Python, Rust, Elixir
About: Teacher and developer from Brazil, founder of Coisa de Dev, where I teach Linux, open source and DevSecOps in Portuguese.

I contribute to open source and write down what I learn doing it: a documentation patch accepted into the Linux kernel, two fixes merged into TimeConv, and an open PR against uutils/coreutils, the Rust rewrite of GNU coreutils. One article per contribution, from the bug to the merge.

Python and Elixir day to day, Rust for systems and CLI work, Linux everywhere.
Location: São Paulo, Brazil
Website: https://github.com/igorgbr
Languges & Tools: Python, Elixir, Rust, Bash, Linux (Fedora), Docker, Git
Currently Exploring: Rust in real codebases instead of tutorials: uutils/coreutils is my current classroom. Also how large open source projects actually run, which is the part no tutorial covers: reviews, CI, licensing.
Achievements: Documentation patch accepted into the Linux kernel (pt-BR translation). Contributor at uutils/coreutils, the Rust rewrite of GNU coreutils. Contributor at TimeConv, including a bug that had been open for four years.
Fun Fact:
Random Dev Quote: "Never trust a computer you can't throw out a window." - "iWoz" Wozniak
Latest Video: https://www.youtube.com/watch?v=dU74PtbtgHc
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