Sebastián DazaSD
Looking for a job

Sebastián Daza


I am a data scientist and demographer (PhD) with experience in industry and academia.


What I'm looking for

Currently, I am working as a Senior Data Scientist at Lookiero, an online personal styling service in Europe and the UK. At Lookiero, I analyze personal-shopper performance, get user insights, make causal inferences for marketing initiatives, and create recommendation systems based on user feedback (personalization). I am also teaching a course on machine learning and survey methodology for the Master in Computational Social Sciences at the University Carlos III, Madrid. Previous to my current position, I led a group of researchers studying early conditions on health outcomes (e.g., obesity) at the Spanish National Research Council (CSIC). I also worked as a Senior Data Scientist at a startup in the Bay Area, leading a small group of analysts to design and analyze experiments (A/B testing) and create data pipelines. I have also consulted on academic and industry projects (e.g., HR and recruiting dashboards for Personio).


Lookiero logoLO

Senior Data Science


Jun 2022 - Present (1 year 11 months)

- Technical lead in data science and causal inference
- Define a hybrid recommendation model using more than 200M feedbacks from users
- Use statistical models to identify sources of product success (variance decomposition) and the causal effect of discount strategies
- Simulation of scenarios
- Contribute to defining a framework to iterate neural network models in Databricks and Pyspark

Juntos Global logoJG

Senior Data Scientist

Juntos Global

May 2018 - Dec 2019 (1 year 7 months)

- Led analytic and data science team for user insights
- Provided user insights through the design and analysis of experiments (A/B testing)
- Implemented NLP and machine learning} models to classify users and topics
- Worked closely with Product Managers}, Software Engineers}, and Design team} to improve Juntos' product
- Defined data pipeline


Senior Researcher


Dec 2019 - Apr 2022 (2 years 4 months)

- Led a team of researchers} to study early conditions, delayed adult effects and morbidity, disability and mortality
- Led Scrum ceremonies} and tracked progress using Notion
- Supervised and implemented complex data analysis on demography and genomics using R and Java
- Health modeling and simulation using Anylogic

Tech stack

Learn about the tools and technologies that Sebastián likes to use.


Looking for a job



Authorized to work in


Salary expectations

50k-70k EUR

Job categories

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