Alexander works as a Senior Security Consultant at RootSys. In his daily work, he performs security audits including penetration testing, security reviews and cryptography audits, holds secure coding workshops, and also gives trainings and provides consulting services for software design and architecture. He has several years of experience in designing microservices and desktop or mobile applications and also in writing or migrating them. He received a PhD in Physics from the University of Innsbruck and holds master’s degrees in both Technical Mathematics and Biomedical Informatics.