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Salary
$81k – $91k per year
Location
In office (Stockholm)
Seniority
Senior
Employment
Full-Time
Overview
Company
Impact
Profile match
Klarna is a Swedish financial technology company founded in Stockholm in 2005 that provides payment and shopping services to consumers and merchants worldwide. Its core products let shoppers pay immediately, defer a payment or split a purchase into interest-free instalments, while merchants receive settlement, fraud protection and conversion tooling through a single checkout integration. The group has expanded into a shopping app with price comparison, cashback and a bank offering, holds a European banking licence and listed its shares on the New York Stock Exchange in 2025.

As a Senior Engineer, you will work at the intersection of engineering and data science, building and productionizing machine learning pipelines that power Klarna's credit decisioning. You will take models from development through to production, ensuring pipelines are reliable, scalable, and ready for real-world use. Your day-to-day work will span writing Python to train models, building infrastructure to support the ML pipeline, and deploying models into production using tools such as tree-based models, AWS SageMaker. You will play a key part in scaling Klarna's in-house data science capabilities as we continue to grow our credit risk and fraud offerings.

Who you are

  • Strong experience with Python for data science and machine learning development

  • Hands-on experience productionizing machine learning models and pipelines

  • Practical experience with tree-based models

  • Experience with AWS or comparable cloud infrastructure

  • Understanding of MLOps practices for scaling models into production

  • Experience collaborating with cross-functional teams

  • Working proficiency and communication skills in verbal and written English

Awesome to have

  • Experience working in credit risk, fraud, or financial services

  • Experience building data pipelines at scale within a larger data science organization

  • Familiarity with model monitoring and observability tools

  • Experience with CI/CD tools for ML deployment

Please include a CV in English

Curious to learn more about Klarna and what it's like to work here? Explore our career site!

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