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What you will do

- Develop and continuously improve fraud detection models using machine learning, anomaly detection, graph analytics and behavioural analytics.
- Transform large-scale transactional and customer data into actionable fraud intelligence.
- Lead feature engineering, data enrichment, data quality and dataset preparation for fraud analytics.
- Analyse complex fraud patterns, emerging attack vectors and suspicious networks to identify new detection opportunities.
- Design analytical solutions that can operate reliably at scale and contribute to production AI applications.
- Partner with Fraud Operations, Risk, Compliance and Product stakeholders to translate business challenges into effective data-driven solutions.
- Investigate model performance and continuously improve detection accuracy while considering operational impact and business value.
- Contribute to the evolution of fraud analytics practices, methodologies and technical standards.

What you bring

- 7+ years of professional Data Science experience, with significant experience in fraud detection,



fraud analytics or a closely related domain.
- Strong hands-on Python and SQL skills, including experience with Pandas and large-scale data processing.
- Proven experience working with Spark or other distributed data-processing technologies.
- Strong knowledge of supervised and unsupervised machine learning, anomaly detection and predictive modelling.
- Practical experience with graph analytics, network analysis or behavioural analytics applied to fraud or risk problems.
- Demonstrated ability to turn complex, high-volume data into robust analytical and ML solutions.
- Experience taking data science solutions towards production, working with software engineering and/or ML engineering teams.
- A proactive, autonomous and business-oriented approach.

Interested? Apply immediately!

myNEBIRU: Not into this role, but interested in what NEBIRU does? That’s totally fine.

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📌 Senior data scientist (machine learning & graph analytics) (España)
🏢 NEBIRU
📍 España