Klarna

Lead the engineering of Klarna’s cloud asset inventory and cloud security posture management capabilities. Build full-stack services and workflows that help teams identify, prioritize, and remediate security and compliance gaps across cloud assets.

Own the technical pre-sales and integration narrative for Klarna’s acquiring partners, helping them implement payment services across APIs, tokenisation, reconciliation, and settlement flows. You’ll lead demos, workshops, proposals, and go-live readiness in close partnership with Product and Engineering.

Klarna is hiring a Senior Offensive Security Engineer to conduct penetration tests, investigate bug bounty and vendor findings, and identify vulnerability variants across its systems. The role combines hands-on offensive security with developer guidance, tooling, and security training.

Join Klarna’s Offensive Security team to conduct penetration tests, investigate vulnerability reports, and uncover recurring security issues across internal systems, public-facing applications, code, and infrastructure. You’ll also build offensive-security tooling and help developers and security teams improve their defenses.

Senior Offensive Security Engineer responsible for penetration testing, vulnerability triage, and security research across Klarna’s internal and public-facing systems. The role combines hands-on offensive testing with variant analysis, security tooling, and developer enablement.

Klarna is hiring a Senior Offensive Security Engineer to conduct penetration tests, investigate vulnerabilities, and strengthen security across internal and public-facing systems. The role combines hands-on offensive security, variant analysis, security tooling, and collaboration with engineering and security teams.

Senior Machine Learning Engineer responsible for turning credit underwriting models from data science experiments into reliable production systems. The role focuses on Python development, ML pipeline infrastructure, AWS SageMaker deployment, and ongoing model operations.

Build and operate production machine-learning pipelines that power Klarna’s consumer credit decisions. You’ll turn data scientists’ credit underwriting models into reliable systems deployed on AWS SageMaker.