About Sebastian
Marketplace & Product Analytics · AI Automation — Snowflake, Databricks
I help marketplaces and product teams understand what's actually happening in their data — supply, demand, pricing, matching, retention — and automate the analytical work that eats the team's week.
I led analytics at DiDi, working on marketplace dynamics at high volume: supply, demand, pricing, and the matching between them. The hard part is rarely the model. It's the messy reality underneath it.
More recently, in Big Four technology consulting, I designed and built a multi-agent AI system that automates data workflows end to end — [one plain sentence: what it actually does]. [It's in production / It works — say whichever is true, and no more.]
My background is actuarial. Before consulting I ran data intelligence at a large retail bank, building a recommendation model for investment products across fragmented core-banking systems. So I'm comfortable where the data is messy and the answer has to be defensible — fraud, pricing, credit risk, LTV.
What I typically deliver:
Marketplace & product analytics — supply/demand, pricing, cohorts, retention, experimentation
AI agents that automate recurring analytical and data-quality work
Data platform work: Snowflake, Azure Databricks, modelling, Power BI
Analytics leadership — shaping the question, not just running the query
Remote-first, based in Barcelona. Working in Spanish, English and Italian.
Happy to start with a short fixed-scope diagnostic — usually the fastest way for both of us to find out whether I'm the right person for the problem.
Spanish
Native or bilingual
English
Fluent
Italian
Fluent
Can work on-site
Barcelona (up to 50km)
Experience
- EY GDSTechnology Consulting ManagerDIGITAL AND ITOctober 2024 - Today (1 year and 10 months)Lead enterprise data and analytics initiatives supporting digital transformation, reporting modernization and business-technology alignment. Translate stakeholder needs into practical analytics, governance and cloud data workstreams for financial services clients. Built a multi-agent AI system that automates data governance in Collibra, classifying each data element, drafting its description, and performing business asset and privacy categorization across staged workflows.
- EY GDSSenior Data ConsultantRETAIL (LARGE RETAILERS)July 2022 - October 2024 (2 years and 3 months)Delivered Power BI, data visualization and enterprise reporting solutions across consulting and financial services projects. Worked with technical and business teams to make data easier to access, understand and use for decision-making. Supported cloud data platform and governance initiatives across enterprise reporting environments.
- DiDiSenior BI AnalystNovember 2021 - July 2022 (8 months)MexicoLed data analysis for DiDi Food's expansion strategy, using Python and BI tools to evaluate activity trends, promotion performance, and DiDi Rides adoption to select new launch markets. Identified supply gaps by zone — where more drivers or restaurant partners were needed — to guide operational and growth decisions.
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Education
- MScUniversità degli Studi di PaviaMSc
- Actuarial SciencesUniversidad Nacional Autónoma de México2015