Senior Data Scientist

About Us

With over 85 million global active users and 2,5 million transactions per day, Klarna is on the way to becoming the world’s favorite way to shop. To help us get there, we’re assembling an unparalleled global talent team—accelerating individual careers, and disrupting entire industries. We’re looking for people ready to achieve the extraordinary and embrace our bold ambitions as we shape the future of payments and fintech. Will you join us?

What you'll do

- Validate and critique models across a wide range of applications (credit risk, marketing, fraud detection, forecasting, etc.)

- Work closely with model developers to improve quality, transparency, and documentation

- Build benchmarking models and design rigorous test methodologies

- Influence model governance and help shape Klarna’s standards around model risk management

Requirements

- Strong experience in building statistical and machine learning models

- Solid foundational knowledge in mathematics and statistics

- Proficiency in Python and SQL

Ideally, you have:

- An academic background in Physics, ML, Data Science, Mathematics, or Biology

- Prior experience as a Senior Data Scientist, ideally within a regulated environment or fintech context

Please include a CV in English.