Data & AI
Five Legged
Data Sheep
Experts in all facets of data projects, from source to dashboard, including modeling and analytics.
01
Residual Mix World Map
Interactive world map visualising the certified and residual energy mix for countries worldwide, including carbon intensity. Built for residualmix.org — users can explore tracked renewables, fossil generation, and CO₂ emission factors by country and year.
Tech stack
Data story
Input
AIB energy certificate data (CSV) covering European and global markets by country, year, and technology
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Output
Choropleth world map with three switchable KPIs: tracked generation, tracked renewables, and residual mix carbon intensity
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Result
Live at residualmix.org — interactive map serving energy transparency data across 50+ countries
02
Open Source Data Stack
Building a data warehouse backend for a web app that serves audio and video from the rich archive of the Netherlands Institute for Sound and Vision.
Tech stack
Data story
Input
Audio/video archive metadata from multiple source systems at the Netherlands Institute for Sound and Vision
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Output
Normalised, indexed documents in Elasticsearch powering archive search and discovery
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Result
Live webapp served by data backend at https://www.beeldengeluid.nl/schatkamer
03
Azure Data Warehousing
Designed and built a data warehouse at Syntrus Achmea Hypotheken, ingesting 10+ operational data streams into a unified model serving mortgage finance reporting.
Tech stack
Data story
Input
10+ operational data streams from mortgage finance systems (loans, valuations, payments)
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Output
Unified DWH model serving 50+ mortgage finance reports
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Result
50+ reports unified under a single governed data model
04
AI & Machine Learning Models
Led a data science team at Van Lanschot Kempen delivering churn and default prediction, M&A prediction, NLP-powered lead generation, and graph network visualisations.
Tech stack
Data story
Input
Client transaction history, financial data, unstructured text, internal + external data sources
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Output
Churn scores, default risk predictions, NLP lead rankings, graph network visualisations
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Result
Improved customer satisfaction. Better lead conversion.
About
Steven is a Data & Analytics expert with a deep understanding of Data Engineering, based in the Netherlands. He designs and builds data warehouses, machine learning systems, and open-source data stacks for financial services and media organisations. Currently building the data platform for the Netherlands Institute for Sound and Vision.
Skills