Joonas Mustonen
Information Security Specialist
Lahti, Päijät-Häme, Finland
Summary
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Senior🎓
Top SchoolJoonas Mustonen is an information security specialist and software engineer with nine years of hands-on experience across web and application development, now focused on defensive and offensive security at 2NS – Second Nature Security. Holding BSCP, CRTO and OSCP certifications, he blends practical penetration testing skills with a developer’s mindset shaped by senior engineering roles at Virnex Group and Kaimana Agency. Based in Lahti, Finland, he’s comfortable moving between building production software and probing its weaknesses, bringing pragmatic secure-by-design thinking to projects. Known for self-deprecating humor on GitHub, he pairs curiosity and humility with a track record of shipping reliable code and improving security posture in mid-sized teams.
9 years of coding experience
8 years of employment as a software developer
Hollolan lukio (High School)Bachelor's degree Information Technology, Bachelor's degree Information Technology at Lahti University of Applied SciencesProgramming languages (1)
Github contributions (5)
mustjoon/blogi
Oct 2022 - Jan 2025
Contributions:54 pushes in 2 years 3 months
mustjoon/React-Sails-pohja
Jun 2017 - Jun 2017
Contributions:18 commits, 16 pushes, 1 branch in 14 days
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