Data Engineer/Analyst

8/2022 – offen

• Launched and owned Heyflow’s foundational data platform on GCP, enabling all analytics through
modular pipelines and governed modeling (BigQuery, Dataform, Airflow, Cloud Run, Airbyte)
• Built real-time analytics system pushing product events to HubSpot, increasing sales conversion speed
by 40% (Cloud Functions, Pub/Sub)
• Designed and deployed reverse ETL pipeline syncing daily user/product data to CRM, improving lead
targeting and activation by >50% (BigQuery, Cloud Run, Airflow)
• Established Git-based CI/CD workflows for analytics; introduced code reviews, testing, and structured
deployments (GitHub, Airflow)
• Delivered core financial, product, and marketing reports with full automation, reducing manual reporting
by more than 90% (Apache Superset)
• Hired and onboarded entire data team; wrote case studies, ran technical interviews, and defined hiring
standards

Cloud-Services, BI-Spezialist Data Warehouse, Data Analyst, Data Engineer, Data Warehousing, Datamanager, ETL, Git, Google Analytics, Google Cloud, Google Tag Manager, Python, SQL

4/2022 – 8/2022

• Developed core referral KPIs such as Viral Coefficient and Referral Growth Ratio to precisely evaluate the referral program and optimize marketing budget allocation
• Designed and expanded interactive Tableau dashboards providing full transparency on funnel performance, conversion drivers, and growth opportunities at management level
• Built a regression model in Python as the first data-science use case within the team, enabling reliable forecasting of growth and operational capacity needs
• Conducted data-driven analysis and optimization of IDnow onboarding SLAs, improving resource planning and strengthening leverage in contract negotiations
• Developed across departments referral KPIs such as Viral Coefficient and Referral Growth Ratio which improved targeting and increased visibility of the referral funnel

Data Vault, Data Analyst, Data Mining, Data Science, Datamanager, Postgresql, Python, SQL, Tableau

10/2021 – 4/2022

• Built alert systems for critical CRM event tracking, significantly improving team communication and responsiveness
• Developed parameterized reports for Google Sheets enabling full self-service for stakeholders
• Migrated >5TB/day data to automated infra (Python, SQL, Jinja2, GitLab).

Big Data, Data Warehousing, Data Analyst, Marketing-Analytiker, Git, Python