Security Architect and Developer

Before finishing his studies, Mr Stelle was involved in numerous international client projects while working for SAP. After graduating from TU Darmstadt with a Master in IT Security and a strong focus on Mobile Security, he was working as an IT freelancer since 2013, refining his expertise in a broad field ranging from mobile development, protocol design, hardening schemes for IoT devices and servers alike and client development work. All the while covering either the role of a Security Architect, Technical Lead, System Architect or Lead Developer. Clients trust him to finish the job while using up to date technologies and methodologies and coordinating work with internal and external work forces.

PKI, X509, Security Architectures, Protool Design, Secure Boot Chains, Metasploit, nmap, Injections, Linux, Windows, MacOS, Android, iOS, Contiki, Programming, C, C++, Python, Shell-Script, Java, Android + J2EE, ObjC, Javascript, Assembler (x86, x86_64, ARM), Meta-Languages/Services, JSON, XML + XSD, XSLT, SOAP, REST, SCRUM, Kanban, SAFe, UML, Rapid Prototyping, Extreme Programming, Database, MySQL, SQLite, PostgreSQL, Release Management, Git, Subversion, CVS, Perforce, Continuous Integration, Jenkins, Gitlab CI, Ant, Maven, Machine Learning, CEH, CISSP, SAP, Telecommunication, ZigBee, WiFi, BLE