Data Analyst

6/2023 – offen

Subscription Retention: Led a project on subscription retention calculations, delivering insights that improved monetization strategies and user retention.
A/B Testing Automation: Streamlined A/B testing processes with an automated metrics calculation via Python basedstatistical significance assessment tool, reducing decision-making time and improving feature rollout stability.
Enhanced Analytics Collaboration: Optimized collaboration processes within analytics to ensure smoother communication and integration of insights into project workflows.

Data Science, Postgresql, Datenanalyse, Python, SQL

12/2020 – 5/2023

Team Leadership: Managed a team of three analysts and mentored five members from other departments. Established collaborative workflows, improved task transparency, and enhanced communication between analytics and product teams.
Custom Metrics Calculation: Integrated bootstrapping into our A/B testing calculations, reducing analysis time for small tests from 1.5 weeks to three days.
Product Metrics Overhaul: Redefined key product metrics to focus on time spent, enabling better data-driven decisions.
Key Project Ownership: Led two major projects—a data system for custom data storage from subdomains and a new session calculation system (team’s North Star metric).
Loyalty Program Analysis: Developed an analytics system for the loyalty app (200K DAU at day 14), with detailed unit economics and reporting on program success.

Data Science, Postgresql, SQL, Data Analyst

12/2018 – offen

Developed an analytics framework for a new department, which included data mart structuring, key business metrics hierarchy, dashboards, and product hypothesis testing.
Identified an inconsistency in ad data, resulting in a 2% reduction in customer acquisition cost (CAC).
Created and implemented a customer development methodology, enhancing customer insight and feedback integration.

Data Analyst