Nick Karakatsanis

Responsible for Consumer Unit Digital Engineering Cloud & onPrem Infrastructure, AWS, Frontend Integration Layer, Development Network, CI/CD

Cloud and Digital transformation advisory. Consulting for Cloud migrations, shift from monolithic system to modern high scalable, innovative and future ready architectures.

Pushing the Digital Engineering Platforms to the next Technology Level. * Design, migrate and shift from onPremise legacy Middelware Monolithic Services into Microservice driven Frontend API Stack on scaleable Kubernetes Architecture hosted on AWS Cloud for the Digital Consumer Platforms * Establish a new Development Network Environment on Virtual Machines for > 400 Developers within Vodfone Germany

Senior consulting in project order by "addmore GmbH" for an international Telecommunication Company. * Enterprise Architecture * Platform Operations * Cloud Integration & Migration

Conceptioning and Implementation of Smartcard Technologies for large enterprise companies. Strong authentication solutions in corporates. Consultation and Integration of PKI Services. Architecture & Technical Projectlead for OCSP and Integration into large enteprise PKI ( > 100k Users > 600k Certificates) and Trainings for Customer Operations Team. OCSP / Microsoft Windows AD PKI Enviroment / Redhat Enterprise / F5 Network Loadbalancing / Safenet Luna Hardware Security Modules / Intercede MyID

Appseleration was the Competence-Center for mobile applications - called "apps." Mission: We oversee our customers during the entire process chain - from a mobile strategy concept of an app up to the implementation and to the release and maintenance during the product life cycle in the app stores. Responsible for the whole operation mobile/online Platform. Architecture, Planing and building the mobile/online Platform for mobile apps and online services from scratch.

Department was responsible for all e-commerce portals and websites of Vodafone DE - B2B and B2C. Established the Vodafone Application Factory to run the business with Apple, Google, Nokia and Microsoft, with its fast growing appstores. Initial Setup & Operations of Social Media for Vodafone Germany, Corporate Blog, Corporate Blogger, Development of Vodafone apps initiative, internal full-Service mobile apps provider for all mobile platforms, Vodafone 360, telecom operator initiatives.

System Integration Engineer for new Internet and mobile services - End-2-End accountability for multi-programme und multi-project management for all European Vodafone markets. Several mobile initiatives, payment implementations, trials, prototypes, pilots.

End-to end responsible for Vodafone live! in Germany. Including product development and operations. • Network / System Administration, maintenance and monitoring productive Services for Vodafone live! • Maintain and configure Nagios and Cacti Monitoring Tools

Joint Venture of Vivendi and Vodafone, headquartered in London, German business located in Düsseldorf with strong interaction with Vodafone D2. Vizzavi build the first Multi-Access-Portal in Europe accessible via Web and mobile. The portal was launched in 12 European countries and became later Vodafone live!

Full setup of the company to build a nationwide German Internet Service Provider. Launched Germany's first Internet-by-Call flatrate. The service was called "Sonne" in Germany and provided customers with internet access, a website construction kit, webspace and chat.

Setup and operations of a full-service Internet provider (ISP) for a fixed line operator. Large scale technical Internet infrastructure for Versatel Germany. ISP product portofolio development and roll-out.