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Jordan Klein

Penetration Tester · OSCP

Summary

Penetration tester focused on web, cloud, and identity systems. Experienced writing clear reports for both leadership and engineering, with a track record of retests that close critical issues quickly.

Certifications

  • OSCPOffensive Security

    2019

Experience

  • Senior Penetration TesterRedline Assurance

    Berlin, Germany

    2020 – Present

    • Lead external and internal assessments for fintech and health-tech clients under strict scope rules.
    • Developed reusable attack chains for OAuth/OIDC and multi-tenant SaaS; findings drove product security roadmap.
    • Delivered executive summaries and engineer-ready remediation notes within 48 hours of test close.
  • Security ConsultantCipherpath GmbH

    Remote · DACH

    2017 – 2020

    • Performed network, web, and mobile assessments; maintained 98% on-time delivery across 40+ engagements.
    • Built lightweight reporting templates adopted firm-wide for consistency and faster client sign-off.

Education

  • MSc Information SecurityTU Munich

    2017

    Thesis: practical exploitation of misconfigured cloud IAM

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