Santina Wey-Data & Business Intelligence Strategist
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Experience
Business Analyst & BI Strategist - Comparison Portal
dataweys (self-employed)
- Assessment of the existing reporting landscape and strategic bundling of needs
- Migration and consolidation of reports to Metabase, connected to ClickHouse as the data foundation
- Building and maintaining data pipelines
Stack: Metabase · ClickHouse · Appsmith · Airflow
Data Strategist & BI Lead - Transport Planning Company (public transport)
dataweys (self-employed)
- Strategic design of reports based on the KPI Dimension Map method I developed myself: defining the guiding questions per report and deriving the relevant KPIs
- Data modeling from legacy software: turning denormalized structures into a normalized model
- Building Power BI reports based on passenger numbers and operational transport data
- Designing the BI architecture as well as training and enabling employees
Stack: Power BI · DuckDB · SQL · Python · GitHub · VS Code · Claude Code · GIS
Interim Head of Data - Managing General Agent (pet insurance)
dataweys (self-employed)
- Leading the data team and reporting to the CEO and CFO
- Extending existing dbt models and Dagster pipelines, connecting new data sources via dlt
- Designing and building new reports in Metabase
Stack: dbt · dlt · Dagster · Metabase
Senior Consultant Visual Analytics & BI - International Insurance Company
Deloitte Consulting
- Designing the target BI architecture as well as stakeholder management at department head level
- Coordinating an offshore team in day-to-day delivery
- Pilot migration of existing SAS scripts as the basis for the planned platform replacement
- Technical support for the migration team
Stack: SAS 9.4 · AWS SageMaker Unified Studio · AWS Glue · AWS S3
Senior Consultant Visual Analytics & BI · International Banking Group
Deloitte Consulting
- Development and further development of Tableau reports for group reporting
- Requirements management between the business side and development
- Ensuring data quality, governance, and documentation for the ETL processes and Tableau reports
Stack: Tableau Desktop · Tableau Prep · SQL · VBA · Python · Power Automate
Data Analyst: Self-Service Reporting for Financial Claims · Insurers
Collaboration Betters The World
- Review of existing applications and reports
- Building various ETL pipelines DB2 → SAS Viya via SAS Enterprise Guide
- Design and implementation of a filter and sort interface for self-service calculation of premiums, claim settlements, and reserves for insurance partners
Stack: SAS Viya · SAS Visual Analytics · SAS Enterprise Guide · DB2
Data Engineer: REST API Integration GENESIS ↔ SAS Viya
Collaboration Betters The World
- Analysis of the existing API interfaces of SAS and GENESIS
- Development and implementation of the REST API incl. data conversion
- Building a real-time dashboard based on the connection
- Testing and documentation
Stack: SAS Viya 4 · REST API · SAS Visual Analytics
Data Analyst: Energy Optimization with Reinforcement Learning & Digital Twin
Collaboration Betters The World
- Development of a reinforcement learning approach to reduce energy use in manufacturing
- Work with geodata and custom shapefiles, building a digital twin layout in SAS Visual Analytics
- IoT integration with hourly KPIs for real-time visualization
Stack: SAS Viya · SAS Visual Analytics · QGIS · Reinforcement Learning · IoT
Data Engineer: Modernization of 150+ SAS Reports
Collaboration Betters The World
- Migration of the entire reporting landscape from SAS 9.4 / Viya 3.5 to SAS Viya 4
- Modernization of the code of around 150 reports
- Complete transfer into the SAS Viya 4 environment
Stack: SAS 9.4 · SAS Viya 4 · Linux
Data Analyst: Language Proficiency Test Construction
self-employed
- Construction and validation of test instruments for self-assessment of language proficiency
- Statistical modeling and operationalization of variables
- Presentation of research results to a scientific audience
Stack: IBM SPSS · SPSS Amos · R
Data Analyst: Route Optimization for e-cargo bike logistics
self-employed
- Route planning and optimization for inner-city parcel delivery with e-cargo bikes
- Result: 10% reduction in the required vehicle fleet
- Customer segmentation and monthly stakeholder reporting
Stack: SQL · Python · Tableau
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Insurance, Banking and Finance, Transportation, Information Technology, Government and Administration, and Education.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Information Technology, Quality Assurance, Operations, Logistics, and Strategy.
Summary
As a PhD-qualified data expert with nearly 10 years of experience in data analysis, BI architecture, and AI-supported automation, I combine strategic current-state analysis with hands-on engineering. I support SMEs from the first assessment to the finished BI infrastructure, with a growing focus on transport and mobility. From my time at Deloitte, I also bring strong stakeholder and training skills.
Skills
Sql
Python (Pandas, Scikit-Learn, Matplotlib)
R
Vba
Postgresql
Mysql
Vs Code
Cursor
Claude Code
Github Copilot
Tableau (Desktop & Server)
Power Bi
Power Query
Microsoft Fabric
Looker Studio
Metabase
Sas Visual Analytics
Dbt
Dbt Tests
Dlt
Dagster
Databricks
Duckdb
Clickhouse
Kafka
Aws (S3, Redshift, Glue, Sagemaker Us)
Azure
Db2
S/4hana
Spss
Sas 9.4 / Sas Viya
Reinforcement Learning
Forecasting
Clustering
Anthropic Ai
Adkar
Scrum (Certified)
Workshops & Training
Kpi Frameworks
Data Health Checks
Data Governance
Stakeholder Management
Requirements Management
Qgis
Gis
Shapefiles
Geospatial Data Analysis
Languages
Education
Friedrich-Alexander University Erlangen-Nuremberg (FAU)
Dr. phil., focus on statistics · Educational Science · Nuremberg, Germany · magna cum laude
FAU
Bachelor & Master of Education · Geography & German Studies · Erlangen, Germany
Certifications & licenses
Scrum
Statistics
Experience
Global Experience
Expertise
Qualifications
Profile
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Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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