Senior Offensive Security Engineer

2 settimane fa

Milano, Lombardia, Italia Klarna A tempo pieno 80.000 € - 120.000 € all'ano

What you will do

As a Senior Offensive Security Engineer at Klarna, you will be at the forefront of safeguarding our digital infrastructure and customer data. This position demands a blend of hacking skills, creativity, and a deep understanding of cyber threats. You will simulate sophisticated cyber attacks to identify vulnerabilities, ensuring Klarna's resilience against real-world threats.


• Conduct white-box and black-box penetration testing against internal and public-facing applications and assets.


• Manage, triage, and investigate Bug Bounty submissions and external pentest findings.


• Perform variant analysis on issues discovered through all channels.


• Research and perform security analyses on Klarna's 3rd-party solutions.


• Develop tooling to support reconnaissance, automation, and metrics collection.


• Provide expert guidance to developers, product security teams, and SOC investigations.


• Spread awareness of offensive security practices via demos, workshops, and training.


• Assess the security of our tech stack and help mature Klarna's security program.

Who you are


• Strong experience with penetration testing and technical security assessments.


• Experience identifying security issues in code, particularly within Java and


• Experience with cloud environments, especially AWS and modern microservice design.


• Comfortable communicating findings clearly with concrete remediation recommendations.


• Skilled in Python scripting and automation.


• Self-driven, proactive, and engaged in advancing Klarna's security culture.


• Industry-recognized certifications (e.g., OSCP, OSWE, CREST, GIAC, AWS).


• Active participation in CTFs and cybersecurity communities.

Awesome to have


• Collaboration within a diverse and innovative global team.


• Opportunity to work in Milan with a multicultural environment.


• Challenging scope with exposure to cutting-edge technologies.

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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