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Christoph KelzenbergCK

Christoph Kelzenberg

Data Expert / Leader / Customer Experience

€800/day
Köln, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Christoph

Experienced Data and AI expert with a focus on Customer Experience & Business Impact
I am a strategically thinking Data Executive with over 20 years of professional experience in Data Analytics, AI, and Customer Intelligence. As a former Chief Data Officer and Head of Data Teams in telecommunications and e-commerce, I help companies make data-driven decisions, understand customers better, and measurably increase business success. Whether it's a Modern Data Stack, Mixed Mode Analytics, or AI-powered text analysis – I pragmatically achieve complex goals. Remote or on-site. Hands-on, but with foresight.
  • German

    Native or bilingual

  • English

    Fluent

  • French

    Basic

Can work on-site
Köln (up to 50km)

Experience

  • Triple A Internetshops GmbH,
    Lead Product Owner Data & Customer Feedback Platform
    November 2022 - Today (3 years and 7 months)
    33 Bielefeld, Germany
    Product Owner for the Medallia Customer Experience Management Platform Responsible for the development of the platform to enhance customer experience (CX) insights and optimizations Designed a CX data architecture that optimized data usage and ensured alignment with congstar's overall data strategy
  • Nudge Consulting GmbH,
    Director Customer & Business Intelligence
    October 2018 - May 2019 (7 months)
    41 Neuss, Germany
    Led the commercialization of data streams across all e-commerce business units (EIS.de, Bilder.de, druckerzubehör.de, handyzubehoer.de, satisfyer.com, geske.com), driving data monetization strategies and maximizing revenue opportunities Established and scaled the Customer & Business Intelligence Unit (16 employees), serving as the key driver for transforming the company into a data-inspired, customer-centric organization Responsible for the implementation of a cloud-based Modern Data Platform, a pivotal component of the e-commerce ecosystem, to support data scalability and growth
  • E-Plus Group,
    Team Lead Web Intelligence
    September 2007 - September 2014 (7 years)
    40 Düsseldorf, Germany
    Established a Web Intelligence Unit, defining strategy, processes, research frameworks, Tooling, reporting and KPI monitoring to support all strategic business initiatives

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Education

  • Conference: How to improve your Conversion by using Behavior
    Kaiser Kraft
    Conference: How to improve your Conversion by using Behavior
  • Master
    University of British Columbia (UBC)
    2011

Skill set (10)

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