Senior Freelance Analytics Consultant

• Detecting fraud patterns by implementing aggressive anti-fraud rules while maintaining acceptable false positive rates - with the effect of reducing fraud exposure to users by up to 80%
• Supporting ideation and roll-out of new trust and safety features to the platform to block fraudulent activity and increase user awareness for fraud
• Supporting Product, Development and Customer Support with BI reports and further guidance to identify and fight fraud and policy violations

• Conceptualising the data & analytics frameworks for Gamebook's various titles
• Visualising the end-to-end player journey from install to engaged customer, identifying pain points and reducing player churn
• Guiding marketers and game designers by enabling data-driven content creation and optimisation for game content and marketing campaigns

• Supporting the data collection and data processing for the American Museum of Natural History exhibition "Invisible Worlds"
• Collecting location data of Twitter feeds, taxi and bike routes on Earth Day 2020 and processing it for further visualisation

• Working directly with the company's founders on user lifecycle analytics
• Increasing customer retention and reducing customer churn
• Driving subscriptions by identifying valuable customer segments to be targeted by marketing campaigns

• Supporting management by creating a customer health scoring and building a customer churn prediction model
• Driving customer retention and new sales
• Setting up advanced revenue reporting

• Creating Tableau dashboards for top management to visualise sales success and identify business opportunities
• Guiding and mentoring stakeholders to convert from Excel pivot tables to a proper BI tool

• Supporting design, setup and roll-out of a new segmentation for PayPal’s global consumer base
• Creating datasets and self-service dashboards for consumer product penetration, segment migration, consumer lifecycle
• Generating insights to help reduce consumer activation friction and increase Net New Actives

Master’s thesis analysing the impact of pricing changes on PayPal’s top customers

Hamburg Area, Germany

Assisted budget planning for the financial year 2011; Assisted investment planning and HR controlling; Conducted competition analysis

Taught fundamentals and application of calculus in business and economics / theory of production and cost theory, optimal production plans and efficient production management