Aman Abdullayev
Verified Expert in Engineering
Data Science Developer
Berlin, Germany
Toptal member since January 22, 2026
Aman is a data scientist based in Berlin with a background in environmental science, materials science, and data science. He enjoys turning complex problems into clear, actionable insights. Over the past several years, he’s focused on marketing analytics, working hands-on with attribution models, marketing mix modeling (MMM), time series forecasting, geo (incrementality) experiments, and customer lifetime value modeling.
Portfolio
Experience
- Python 3 - 8 years
- SQL - 6 years
- Time Series Forecasting - 5 years
- Marketing Mix Modeling - 4 years
- Bayesian Statistics - 4 years
- Incrementality Testing - 4 years
- Attribution Modeling - 4 years
- Causal Modeling - 4 years
Preferred Environment
Python 3, SQL, Jupyter Notebook, Databricks, Snowflake, GitHub, Spark, BigQuery
The most amazing...
...thing I've developed is a Bayesian MMM model from scratch using the probabilistic programming package PyMC.
Work Experience
Applied Scientist
Zalando SE
- Developed a framework to model the long-term (1-2 years) effect of marketing activities using proxy metrics happening today.
- Built a sophisticated time series forecasting model to predict marketing spend and expected revenue with that level of spend.
- Developed an attribution model that challenged the status quo attribution model with high accuracy and simplified steering capabilities.
Senior Data Scientist
Haensel AMS GmbH
- Led the development of the MMM model from scratch using probabilistic approaches with the PyMC package.
- Developed forecasting and customer lifetime value models per the client's requests.
- Calibrated both attribution and MMM models using geo experiment results.
Data Science Support Engineer
One Data
- Supported data science teams in building and deploying models.
- Built dashboards and web apps on the One Data Platform.
- Automated pipeline monitoring with APIs and Slack notifications.
- Maintained analytics projects for supply chain and purchasing teams.
Experience
Personal Showcasing Website
https://amanabdullayev.me/Education
PhD in Materials Science
Technische Universität Berlin - Berlin
Diploma in Environmental Science
Magtymguly Turkmen State University - Ashgabat
Certifications
Data Scientist Professional Training
Yandex
Skills
Libraries/APIs
PyMC
Tools
GitHub, BigQuery
Languages
Python 3, SQL, Snowflake, Python
Frameworks
Spark
Platforms
Jupyter Notebook, Databricks
Other
Time Series Forecasting, Attribution Modeling, Marketing Mix Modeling, Incrementality Testing, Forecasting, Data Science, Causal Modeling, Bayesian Statistics, A/B Testing, Literature Research, Materials Synthesis, Characterization, Analysis of Data, Writing Paper, Statistics, Multi-touch Attribution, Machine Language, Data Analysis, MTA, Blogging, Data Scientist, Marketing Attribution, Marketing Analytics
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