Guilherme Junqueira
CEO at Mindz
Goiás, Brazil
Summary
👤
Senior🎓
Top SchoolGuilherme Junqueira is a serial entrepreneur and CEO with over a decade of hands-on experience building security and software businesses from the ground up. He began founding tech ventures at age 12 and later earned a degree in Information Systems from UFU, blending deep offensive security expertise with product and platform leadership. As founder of Solyd Offensive Security and leader at Guardsi Cybersecurity, he has trained over 180,000 students and led hundreds of penetration tests for major Brazilian initiatives and enterprises. He also co-founded Mindz, a high-volume infoproducts platform that has processed tens of millions of reais, demonstrating his ability to scale both technical products and commercial operations. Known for spotting market gaps and designing processes that prioritize customer experience, he pairs practitioner-level technical skill with strategic business execution. Based in Goiás, Brazil, he uniquely bridges offensive security, pentesting practice, and entrepreneurial productization.
10 years of coding experience
Engenharia Mecânica, Engenharia Mecânica at Universidade Estadual Paulista Júlio de Mesquita FilhoBachelor's degree Sistemas de informação, Bachelor's degree Sistemas de informação at Universidade Federal de Uberlândia - UFU
English, Portuguese
Github Skills (87)
creative-commons10
cpp10
fork10
java10
javascript9
zappa9
django9
rio9
lambda9
pyramid9
fomantic-ui9
python9
flask9
semantic9
aws-lambda9
Programming languages (6)
Github contributions (5)
guilhermej/dnsbrute
Jun 2017 - Jul 2017
Simple subdomain DNS bruteforcing in Python
Contributions:4 commits, 3 pushes, 1 branch in 2 months
securitypythonbruteforcingdns
guilhermej/py_udp_flood
Sep 2017 - Sep 2017
Contributions:7 commits, 6 pushes, 1 branch in 1 day
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