Stephan R.

Brooklyn, NY · Acting CISO / Information Security Officer · Rakuten Advertising

Washington and Lee University

3 followers

About

Stephan Alexander Stephan R. is an accomplished Information Security Executive and Risk Manager with over 30 years of experience across diverse industries. He currently serves as Acting CISO for Rakuten Advertising, where he shapes enterprise security strategy, manages cloud risk, and oversees security operations across multiple cloud environments. Stephan combines board-level leadership with deep technical expertise in engineering, IAM, and regulated financial systems.

Skills

  • CISO Leadership
  • Security Strategy
  • Security Operations
  • Detection & Response
  • Security Policy
  • Compliance
  • Cloud Security AWS
  • Cloud Security GCP
  • Cloud Security Azure
  • Incident Response

51 skills in total

Licenses & Certifications

  • CISSP

    ISC2

    Issued Jul 2026

Experience

  • Rakuten Advertising

    • Acting CISO / Information Security Officer

      Dec 2025 — Present

      New York, NY

    • Senior Director, Security Operations

      Apr 2018 — Dec 2025

      New York, NY

    • Director, Engineering

      Apr 2017 — Apr 2018

      New York, NY

11 experiences in total

Education

  • Washington and Lee University

    B.A., Computer Science

    Jan 1993 — Jan 1993

Recent posts

[celebration:new_certification]Has successfully verified **CISSP** (ISC2)

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View Stephan R.'s profile on Cyberr