• Product development and operation of own device onboarding and secret management solution for manufacturers of industrial sensors, edge devices and PLCs. Management of an international seven member software developer team. 
• Industry-focused consulting on IT-Security (PKI, CRA, NIS, IEC 62443) and Kubernetes for sensor & edge manufacturer, energy provider and industrial production operators.

• Development of a security architecture for transmitting critical data in critical infrastructure.
• Deployed a redundant Smart Meter PKI conformant HSM solution in Data Center.
• Consulting on the introduction of the use of elliptic curve cryptography with certificates for the transmission of secured data and conception of a solution for the storage of the private key material in a hardware-based enclave in compliance with the specifications for smart meter PKI of the German Federal Ministry for Security in Information Technology (BSI).

• Technical lead in a research project responsible for the automation of the initial distribution as well as the lifecycle of x.509 certificates in (I)IoT use cases. 
• Integrated various (I)IoT platforms with different key management systems while the devices? identities were managed in TPMs along the supply chain. 
• Automated setup of a 3 tier PKI (incl. offline root) for OPC UA and MQTT use cases. Maintained deployments of services on self managed Kubernetes Cluster on VMWare. 
• Integrated multi-tenancy system using Keycloak as well as integrations to cloud services like AWS IAM and Azure AD. 
• Management of an international 7 member software developer team. Master?s thesis mentoring.

• Worked as product owner of a customized (I)IoT Platform for a customer from the environmental protection and work safety sector. 
• Acquired requirements in close collaboration with the client as the main contact person and formulated technical requirements.
• Developed the security concept for the device connectivity. 
• Managed and supervised the international development team as well as reviewed their deliveries.

• Technical consulting on Web Applications. Planed, coordinated and developed tailormade Web Applications on project bases with a small team.

Projects:

• Finca & Ferienhaus-Urlaub ? 2013
• FILMOND ? 2017 - 2018
• Cornelsen Verlag GmbH ? 2014 - 2017, 2019

• Automated the installation of dedicated hosts for a container virtualization system as well as the installation of Mail- and DNS-Servers. 
• Developed monitoring systems and migration tools for transparent container migration between host systems. Introduced an infrastructure wide host and employee authentication service based on Kerberos. 
• Managed two interns. 
• Because of the small number of employees, I got close insights in team government and team management while the company was growing.