Senior Data Scientist - Transformer Risk Modeling

Klarna

Monza

In loco

EUR 70.000 - 110.000

Tempo pieno

4 giorni fa

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Descrizione del lavoro

Klarna is seeking an ML Engineer to tackle technically challenging modelling problems in fintech by training transformer-based models on long sequences of real-world transactional events. You will design tokenisation schemes for numerical, categorical, and temporal features, shaping vocabulary size, sequence length, and information compounding.

You’ll oversee the full model lifecycle from data prep to production, guiding ML direction for the company.

Competenze

Experience building transformer-based models in production settings.
Experience designing tokenisation for heterogeneous features.
Proficiency in Python and PyTorch for model development.
Hands-on experience with SageMaker and Airflow for ML workflows.
Track record of end-to-end model lifecycle from data prep to serving.
Strong problem solving and autonomous in small team settings.

Mansioni

Train transformer-based models on long sequences of transactions.
Plan and optimize vocabulary size, sequence length, and information compounding.
Support end-to-end model lifecycle from data preparation to production serving.
Translate research decisions into production systems and ML direction for the company.
Demonstrate deep understanding of transformer architectures and sequence modelling.