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Principal Information Security Consultant

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Mastercard

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Location:
United Kingdom , London ▼

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

Mastercard is looking for a Principal Information Security Consultant based in London, Dunstable, or Harrogate. This senior role sits within Vocalink and provides strategic security leadership across critical products and enterprise platforms. As a Principal Security Consultant, you will act as a trusted advisor and senior technical delegate to the Director of Information Security Consultancy — providing expert guidance, shaping strategy, and representing the Consultancy function in cross‑organisation forums. You will operate with high autonomy, influencing complex decisions and raising the maturity and consistency of security engineering practices across Mastercard.

Job Responsibility:

  • Lead high‑impact security consultancy engagements across the enterprise
  • Shape and mature the Security Consultancy function
  • Act as a senior delegate for the Director of Information Security Engineering
  • Provide authoritative guidance to engineering, product, and architecture teams
  • Lead assurance for high‑risk or complex systems
  • Develop, refine, and promote security standards and frameworks
  • Mentor Lead‑level consultants
  • Provide strategic direction on complex technical domains such as cryptography, IAM, network, data and application security

Requirements:

  • Strong security mindset and deep knowledge of best practices and threats
  • Broad and mature experience across software, architecture, network, cloud, and assurance
  • Ability to negotiate with senior stakeholders
  • Strong interpersonal and relationship‑building skills
  • Authority in complex technical decision‑making
  • Confidence in providing technical guidance on complex decisions (cryptography, network design, application security, data protection, IAM, etc.)
  • Experience producing high‑quality documentation and threat models
  • Familiarity with ISO 27001, NIST SP 800‑53, PCI DSS, etc.
  • Self‑starter comfortable with ambiguity
  • Experience with third‑party assurance and vendor interaction
  • Proactive approach to enhancing the maturity of the security organisation

Nice to have:

  • Security certifications (CISSP, CISM, CSSLP, CISA)
  • Threat modelling and risk assessment expertise
  • Knowledge of PAM, Secrets Management, PKI, Cryptography, Security Logging
  • Experience with JIRA/Confluence

Additional Information:

Job Posted:
April 05, 2026

Employment Type:
Fulltime
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