Cybersecurity Specialist for Modern Payment Solutions

7 dni temu


Warszawa, Mazovia, Polska WINGED IT SP Z O O Pełny etat
About the Role
Klarna, a global leader in deferred payments, is revolutionizing the future of finance. As a pioneer in modern payment solutions, we are developing innovative methods to streamline the shopping experience, enhance transaction security, and expand purchasing options.
We're seeking an exceptional Cybersecurity Specialist for Modern Payment Solutions to join our team in Warsaw. This long-term opportunity offers great personal development potential in a stable and friendly large multinational company with a start-up mentality.
Your Responsibilities
  • Conduct both white-box and black-box penetration tests on internal and public-facing applications and assets.
  • Manage, triage, and investigate Bug Bounty submissions and external penetration testing findings.
  • Perform variant analysis on vulnerabilities identified through different channels.
  • Perform in-depth security analyses of third-party solutions.
  • Develop tools to improve reconnaissance, automation, and metrics collection.
  • Provide expert guidance to developers, product security teams, and the SOC to ensure effective issue remediation.
  • Share knowledge by delivering demos, workshops, and training sessions on offensive security practices.
  • Identify and address security issues in code, with a strong focus on Java and Node.js environments.
Requirements and Qualifications
To succeed in this role, you will need:
  • At least 7 years of experience in a similar position.
  • Proficiency in cloud environments like AWS, leveraging modern microservices design principles.
  • Strong scripting skills and contribution to larger Python projects.
  • Industry-recognized certifications (e.g., OSCP, OSWE, CREST, GIAC).
  • A strong educational background in Computer Science, Information Technology, or a related field.
  • Advanced English language proficiency (minimum B2 level).


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