Jefferson Carneiro
CEO at Slackjeff
Santa Catarina, Brazil
Summary
👤
Senior🎓
Top SchoolJefferson Carneiro is a Brazilian technology entrepreneur and CEO with nine years of focused experience in Linux systems administration, corporate infrastructure and digital security, and over two decades of hands-on sysadmin work. He founded Slackjeff and Slackjeff Lab, where he has trained 5,000+ students and produced widely viewed technical content (4.1M+ YouTube views) on Linux, privacy and embedded systems. As an author of three books and a creator who blends teaching with practical engineering, he’s known for automating operations with shell and Python, hardening Linux environments and designing resilient backup and DR processes. Based in Santa Catarina, he combines community influence with enterprise-grade operational discipline, often surfacing practical privacy techniques that aren’t obvious to general audiences.
9 years of coding experience
11 years of employment as a software developer
Bacharelado Ciência da Computação, Bacharelado Ciência da Computação at FURB - Universidade de Blumenau
Github Skills (92)
cgit10
branches10
rio9
slack9
linux8
embedded8
ssh8
menu8
slackware8
sasl8
ssh-tunnel8
cloud-computing7
golang7
remote-access7
shell7
Programming languages (14)
Github contributions (5)
mazonos/bananapkg
Feb 2019 - May 2020
BananaPKG :banana: :package: Gerenciador de baixo nível escrito em Shell
Contributions:154 commits, 58 pushes, 1 branch in 1 year 3 months
shell
slackjeff/pdvShell
Oct 2023 - Dec 2024
PDVSHELL, simples frente de caixa para mercearias
Contributions:5 releases, 9 PRs, 13 pushes in 1 year 3 months
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