I have a history as software developer (KenetWorks,Yahoo Inc), where I was involved in both client and backend systems, and also have a long history within web technologies. Starting ~2007, I've shifted focus to security, and have been working full-time as a security consultant since 2009. In 2016, I joined the Infosec group at Nasdaq in Stockholm. I have been a regular speaker at both national and international security events: 2015 - Sig Security - Outside OWASP top 10 2012 - Hackcon - Web Application Analysis with OWASP HatKit 2011 - SEC-T - Web Application Analysis with OWASP HatKit 2011 - Defcon 19 - Web Application Analysis with OWASP HatKit 2011 - OWASP Stockholm - Websockets for application testers I am active within Open Source, particularly Proxmark3, being one of the core maintainers. Proxmark3 is a tool for interacting with RFID systems. I am also semi-actiive within OWASP , Nmap and various tools. I am also interested in blockchain technologies, and reported multiple vulnerabilities within the Ethereum project bug bounty program. Specialties: Application security testing; web, mobile and thick clients. Programming: Java, JavaScript, Lua, Python are my strongest languages, to a lesser degree: Go, C/C++, PHP, Smalltalk, Solidity and x86 assembly. IT-Forensics, penetration testing.