Jarmo Puttonen
Senior Application Security Engineer
Greater Jyvaskyla Area Finland
Summary
👤
Senior🎓
Top SchoolJarmo Puttonen is a Senior Application Security Engineer with 11 years of hands-on experience in offensive security, bug hunting, and secure development, currently at Supercell and active on leading bounty platforms. He combines deep technical skills—penetration testing, exploit development, reverse engineering, secure code review and tooling—with practical leadership as a technical lead and mentor. A top-ranked white-hat hacker and former HackerOne Advisory Board member, Jarmo regularly places highly in live hacking events and contributes to coordinated vulnerability disclosure and remediation. He also runs Rot Oy for contractor engagements and uniquely balances high-tech work with running a small farm, overseeing hay, horses and boarding services.
11 years of coding experience
1 year of employment as a software developer
Master of Science (M.Sc.) Information security, Master of Science (M.Sc.) Information security at Tampere University of Technology 1965-2018Automation mechanic / Electrician, Automation mechanic / Electrician at Jyväskylän Ammattiopisto, Tekninen oppilaitosBachelor of Engineering Software Engineering, Bachelor of Engineering Software Engineering at JAMK University of Applied Sciences
Github Skills (89)
penetration-testing10
burp10
python10
enumeration10
http10
security10
maltego10
dns10
cybersecurity10
owasp10
golang10
information-gathering10
discovery10
go10
python-requests10
Programming languages (11)
Github contributions (5)
putsi/putsi.github.io
Dec 2016 - Jan 2025
Contributions:59 pushes, 1 branch in 8 years 2 months
putsi/privatecollaborator
May 2019 - Oct 2022
A script for installing private Burp Collaborator with free Let's Encrypt SSL-certificate
Contributions:5 reviews, 28 commits, 5 PRs in 3 years 5 months
burpssl-certificatecollaboratorpenetration-testingpenetration-testing-tools
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