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David Mermelstein

David Mermelstein

Managing Director at The Performance Network Group GmbH

Greater Hamburg Area

Experienced Managing Director with a demonstrated history of working in the marketing and advertising industry. Strong business development professional skilled in Marketing Management, Sales, E-commerce, Customer Relationship Management (CRM), and Digital Marketing.


  • Managing Director (performance network GmbH)
  • Managing Director (The Performance Network Group GmbH)
  • Managing Director ( Internet GmbH)
  • Director Sales Online (Schober Information Group)
  • Director Sales (Schober eServices GmbH)


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