Mark Heylen

Mark Heylen is a versatile professional with extensive experience in cyber security, web development, and fitness training. Currently working as a Cyber Security Researcher and Web Developer at Fiv3yes since 2022, Mark also has a long-standing career as a Certified Personal Trainer with over 25 years in the gym industry. Additionally, as a Security Researcher at TryHackMe, Mark demonstrates expertise in competitive cyber activities, holding a 460-day Capture The Flag streak and ranking in the top 1% worldwide. Previous roles include founding and managing URBAN NEST, where significant property development projects were completed, and project management positions at Petracon cc and Stargate Trading cc, focusing on residential construction. Comprehensive education in security and programming further complements Mark’s diverse skill set.