pIn this role you will lead penetration testing efforts for Klarna’s internal and public systems, triage bug bounty submissions and external pentest findings, and propagate security insights across teams. You’ll analyze issues across the codebase and infrastructure, build tooling, and mentor engineers and SOC colleagues. The position sits on the Offensive Security team and centers on maturing Klarna’s security program. This is a hands-on, impact-driven opportunity in a fast-moving fintech environment. /pulliRun white-box and black-box penetration tests on internal and public-facing systems /liliManage triage and investigation of Bug Bounty submissions and external pentest findings /liliPerform variant analysis to identify related issues across the codebase and infrastructure /liliAssess security of third-party solutions and integrations /liliBuild tooling for reconnaissance, automation, and metrics collection /liliGuide developers, product security teams, and SOC investigations with practical recommendations /liliLead demos, workshops,



and training to spread offensive security practices /liliAssess overall security of Klarna’s tech stack and contribute to maturing the security program /lili5+ years of conducting penetration tests and security assessments on production systems /liliAbility to read code and identify vulnerabilities in Java and Node.js /liliExperience with AWS and microservice architectures /liliClear, remediation-focused writing that translates findings into actionable steps /liliPython scripting to develop own tooling /liliProactive, self-driven approach to advancing offensive security within the organization /liliClear written and verbal communication /liliInitiative and self-motivation /liliCollaboration across cross-functional teams /liliPenetration testing and security assessments /liliJava and Node.js code review /liliAWS cloud security and microservices /li /ulpSenior Offensive Security Engineer • varese, lombardia, it /p #J-18808-Ljbffr

📌 Senior Offensive Security Engineer (Varese)
🏢 Klarna
📍 Varese