Senior Transformer Scientist for Credit Risk Modeling

Klarna is hiring for a role on the Next Generation Modeling Techniques team in London. You will design tokenisation schemes, train transformer-based models on real-world sequences, and own the model lifecycle from data prep to production serving.

You will translate research decisions into production systems, evaluate representations against underwriting outcomes, and work with Python, PyTorch, SageMaker and Airflow in a hands-on, ownership-driven environment.