Jul 2023 – Apr 2025 · 1 yr 9 mos · Lunenburg, Lower Saxony, Germany · Remote

Apr 2021 – May 2023 · 2 yrs 1 mo · Germany

• Data Architect / Lead Data Engineer
• ● Led team of up to 4 (data / sofware engineers, data modeler, QA specialist)
• ● Designed / built and scaled JOKR's Data Platform - based on Snowflake - from scratch including cost management and budgeting of the data stack
• ● Worked closely with I.T and key stakeholders (BI, Product, Warehouse Ops, Pri- cing...) in order to collect business requirements and enable the relevant use cases on the Data Plartform
• ● Defined Governance standards for the Data Platform - including GDPR - as part of an "hybrid" Data Mesh model.
• ● Prototyped Data Apps for Data Monetization as part of the JOKR Media initiave (now in production).

Jan 2019 – Jan 2021 · 2 yrs

• Principal Data Engineer - International Data
• Extended and improved datawarehouse stack :
• ● Designed data pipelines for near real time analysis (Kinesis / Glue / EMR / Redshift)
• ● Designed a serverless view of the Central DWH data model (S3 / Glue / Athena)
• ● Worked closely with the AWS Team in Berlin (Redshift) to solve key uses cases
• Mentored other teams members / analysts and provided internal consulting.
• ● Trained more than 100 data engineers / analysts (SQL / Redshift / optimization trainings)
• ● Designed ad-hoc data infrastructure (AWS) for specific use cases

Dec 2016 – Dec 2018 · 2 yrs

• Extended and improved datawarehouse / B.I stack and pipelines.
• ● Took part in rebuilding the data warehouse (Redshift) from scratch - including modelling
• ● Introduced Airflow for job orchestration and designed an inhouse framework for non Python developers
• ● Designed, implemented and optimized ETL pipelines

Sep 2014 – Nov 2016 · 2 yrs 2 mos · Berlin

• Extended and improved B.I stack based on Postgres and Redshift.
• ● Designed an inhouse ETL tool to easily pull data data from relational databases in an optimized way
• ● Wrote ETL pipelines for multiple platforms such as Facebook, Adwords, Google Analytics, Salesforce...
• ● Designed a customers deduplication solution in order to provide a single customer view for more accurate analysis
• Administrative setup of the BI stack and technical support for Rocket Internet companies.
• ● Setting up EC2 servers, scheduler, inhouse B.I tools and databases
• ● Data Warehouse modelling

Sep 2011 – May 2014 · 2 yrs 8 mos · Greater Paris Metropolitan Region

• June 2013 / May 2014
• PACIFICA (Crédit Agricole Insurance) – Business Intelligence department
• ● Data analysis / reporting and optimization (SAS and Excel based)
• ● Wrote a fully parameterizable insurance rate calculator in order to evaluate impact of product changes on future revenues
• May 2013 / June 2013
• Crédit Agricole Consumer Finance – Risk department
• ● Automation and optimization of SAS analysis involving large datasets
• ❖ Managed to reduce run time of critical jobs by 10 within 4 weeks
• Sept. 2011 / April 2013
• EDF Commerce – Dataming Department
• ● Code review and optimization (algorithmic and SQL) of running SAS analysis
• ❖ Large datasets
• ❖ Complex environment with multiple data warehouses and years of historical data
• ● Data analysis, data sampling
• ● Migrated analysis onto a new data warehouse including data quality and logic checks.
• ● SAS support (optimization, best practices) for business analysts in and outside the department

Sep 2008 – Jul 2011 · 2 yrs 10 mos · Greater Paris Metropolitan Region

• Developed BI oriented softwares for the Business Intelligence department.
• ● Designed and developed a web Data Catalog aggregating heterogeneous metadata into an easy and browsable tool with a business friendly approach
• ● Developed and integrated plug-ins into SAS 9
• ● Designed an in-house SVN-based versioning / secured-delivery solution for SAS projects

Apr 2008 – Jun 2008 · 2 mos · Greater Paris Metropolitan Region

• Developed front and back-office web applications for the Customer Care department