Principal Information Security Consultant

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Principal Information Security Consultant Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realise their greatest potential. Our decency quotient (DQ) drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all. Mission First, People Always Corporate Security is responsible for keeping Mastercard safe and secure from cyber and physical threats. By taking care of our people, their wellbeing and development, we provide the environment needed to ensure the success of our mission. Overview 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. Responsibilities - 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