Senior Data Scientist — LTV & Monetization

Scrambly; Netherlands; On-site; EUR 90,000 - 130,000; Full time

Job summary

Scrambly in the Netherlands is hiring a Senior Data Scientist to own end-to-end models predicting user value, acquisition costs, and rewards. You’ll forecast cohort value from early signals and collaborate with engineers on data pipelines and serving.

The role sits in a small data team, reports to Head of Data, and offers ownership, independence, and compensation aligned with value. Prior production modelling and adtech experience are valued.

Qualifications

• 4+ years as a data scientist working on production models that drive real decisions.
• Hands-on experience with LTV or ROAS prediction — forecasting user value from early behaviour.
• Adtech or mobile performance marketing background — attribution and MMP data.
• Strong Python and SQL, with production experience on a cloud data warehouse — BigQuery preferred.
• Rigour about evaluation: select the right metrics and avoid overfitting.
• Experience of models that made it into production and influenced decisions.
• Commercial judgement and clear communication — explain model value to stakeholders.
• A proactive, self-directed way of working in a small team.
• English at B2+, written and spoken.

Responsibilities

• Value prediction: forecast user and cohort value from early behaviour across revenue streams.
• Bidding and pricing: model what we are willing to pay to acquire users while staying within margins.
• Segmentation and targeting: develop scoring to treat users and inventory by value.
• Fraud and abuse: improve fraud model accuracy and balance with user fairness.
• Evaluation: set the metrics and maintain out-of-sample discipline.
• Collaboration: work with Head of Data, engineers, and commercial teams to turn model output into decisions.

Skills

LTV prediction

ROAS prediction

Python

SQL

Cloud data warehouse

BigQuery

Evaluation metrics

Model deployment

Commercial judgement

English (B2+)

Tools

BigQuery

Python

SQL

Dataform

dbt

Job description

Scrambly in the Netherlands is hiring a Senior Data Scientist to own end-to-end models predicting user value, acquisition costs, and rewards. You’ll forecast cohort value from early signals and collaborate with engineers on data pipelines and serving.

The role sits in a small data team, reports to Head of Data, and offers ownership, independence, and compensation aligned with value. Prior production modelling and adtech experience are valued.