John Sinteur

John Sinteur is a seasoned technology professional with extensive experience in software architecture and security. Currently serving as a Security Architect at Mendix since April 2021, John also owns and operates Dubbele.com Nederland from 2001 onwards. Prior roles include Co-Founder and CTO at Radically Open Security from March 2014 until December 2020, and Co-Founder of the world's first incubator for not-for-profit startups, Nonprofit Ventures, from April 2018 to November 2019. Additional experience consists of senior software architecture roles at FarMedvisie and KPN, along with lead development and multimedia development positions at various companies. John began a career with an internship at Apple Inc. in 1988 after obtaining a Bachelor’s degree in Business Information Science from De Haagse Hogeschool.