Senior Data Scientist - Ad Fraud & Attribution Mastery

bol; Utrecht; On-site; EUR 85,000 - 120,000; Full time

Benefits offered by this job

29 days leave to recharge

Travel costs covered (public transport

Pension plan: 75% premium

Annual sustainability bonus

Job summary

bol is seeking an Expert Data Scientist – Ad Fraud & Attribution to set the methodological direction for fraud detection, attribution, and related analytics within the Marketing & Advertising product group. You will independently investigate problems, analyze data with SQL/BigQuery, validate signals, and translate complex patterns into insights that guide product, engineering, and leadership decisions.

This role thrives on bridging disciplines and building long-term analytical partnerships

Qualifications

• Strong background in statistical modeling and ML applied to fraud and attribution.
• Experience working with large, adversarial datasets and noisy signals.
• Ability to translate complex analyses into product insights.

Responsibilities

• Analyze platform traffic with SQL/BigQuery to uncover emergent fraud patterns.
• Validate suspicious signals, estimate false positives, and measure economic impact.
• Build statistical and ML-based fraud detection models.
• Develop adaptive anomaly detection systems.
• Investigate attack surfaces, bot behavior, and suspicious cohorts.
• Improve attribution logic using statistical and econometric methods.
• Model and correct biases in attribution pipelines.
• Communicate insights clearly to product, engineering, and leadership.
• Proactively reach out across the organization to close analytical gaps.
• Drive methodological improvements across fraud, attribution and related domains.
• Lead AI-focused experimentation and tackle ambiguous problems requiring AI-native thinking.
• Improve DS tooling and processes across teams and introduce new methods where needed.

Skills

SQL

BigQuery

Machine learning

Statistics

Econometrics

Ad tech domain knowledge

Tools

ML frameworks

Job description

bol is seeking an Expert Data Scientist – Ad Fraud & Attribution to set the methodological direction for fraud detection, attribution, and related analytics within the Marketing & Advertising product group. You will independently investigate problems, analyze data with SQL/BigQuery, validate signals, and translate complex patterns into insights that guide product, engineering, and leadership decisions.

This role thrives on bridging disciplines and building long-term analytical partnerships