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Lead Data Scientist, AI Engineering

Dublin, Ireland💼 Full-time🗓 2026-09-03 → 2026-09-26

Core

Lead the design, development, and deployment of advanced machine learning solutions and foundation-model applications to solve high-impact business problems at scale.

Role type

Senior IC Lead Data Scientist (AI Engineering)

Builds

Production ML models, predictive analytics systems, and customer intelligence solutions for Mastercard's global payment ecosystem.

Domain

Financial services / Payments / AI Engineering

Deliverable

production ML models

Required skills

Machine learning leadership, predictive modelling, foundation-model applications, Python, SQL, Scikit-Learn, XGBoost, LightGBM, TensorFlow, PyTorch, feature engineering, representation learning, transformer-based models, cloud platforms (Databricks, Spark, Azure, AWS, GCP)

Preferred skills

Master's or PhD in ML/AI, experience with embeddings, financial services domain expertise, technical thought leadership

Technologies

Databricks, Spark, Azure, AWS, GCP, Scikit-Learn, XGBoost, LightGBM, TensorFlow, PyTorch

Responsibilities

Define modelling approaches and experimentation frameworks, drive projects from problem definition to deployment, establish evaluation frameworks, partner with cross-functional teams, present technical findings to leadership, mentor data scientists and engineers

Seniority

Senior, hands-on IC with leadership responsibilities

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