Matthijs Kloosterboer is an experienced cybersecurity professional specializing in ethical hacking and security engineering. Currently serving as a Freelance Ethical Hacker at The Future Partners and a Security Engineer at bol since May 2024, Matthijs has previously held key roles such as Senior Pentester and Pentester at Securify B.V. from November 2021 to April 2024, Pentester at DICTU from December 2017 to October 2021, and Security Consultant at Northwave from March 2017 to April 2019. Prior experience includes Secure Coding/CICD Engineering at ABN AMRO Bank N.V. in 2017, SOC Analyst at Fox-IT in early 2016, and Quality Assurance at SintecMedia from 2013 to 2016. Matthijs holds a Bachelor of Science degree in System and Network Engineering from Amsterdam University of Applied Sciences, completed in 2017.