Senior Blockchain Security Architect

Mastercard; Bray (OK); On-site; USD 180,000 - 240,000; Full time

Job summary

Mastercard is seeking a Principal Information Security Engineer to lead security architecture for Crypto Products and Solutions Blockchain Networks and to drive secure, scalable blockchain services. This role requires building security into high-velocity environments and guiding engineering, product, and business teams worldwide.

You will mentor engineers, influence project decisions, and participate in regulatory discussions to ensure compliance and customer trust across Mastercard’s blockchain

Qualifications

• Undergraduate degree preferably in computer science or information security, or equivalent work experience of 10–15 years.
• Extensive IT experience demonstrating thought leadership and cross-functional influence.
• Proven ability to enable business outcomes through strong technical decision making.
• Experience influencing project teams and collaborating with business partners, vendors and consulting organisations.
• Excellent communication skills with the ability to influence, negotiate and drive alignment across global teams.
• CISSP/CISM or other security certification is an advantage.

Responsibilities

• Define platform security architecture and drive long-term security strategy for Crypto Products and Solutions Blockchain Networks.
• Lead threat modelling, risk assessments, and security design reviews for high-velocity, high-availability systems.
• Embed security into CI/CD pipelines, APIs, cloud services, and blockchain processing components.
• Mentor junior engineers and security practitioners and provide input into performance evaluations.
• Represent Corporate Security in blockchain initiatives, regulatory discussions, and cross-functional groups.

Skills

Security leadership

Security architecture

Threat modelling

Risk assessments

Secure SDLC

Communication

CISSP/CISM

Education

Bachelor's degree in computer science or information security

Tools

Blockchain platforms

CI/CD pipelines

Cryptography concepts

Job description

Mastercard is seeking a Principal Information Security Engineer to lead security architecture for Crypto Products and Solutions Blockchain Networks and to drive secure, scalable blockchain services. This role requires building security into high-velocity environments and guiding engineering, product, and business teams worldwide.

You will mentor engineers, influence project decisions, and participate in regulatory discussions to ensure compliance and customer trust across Mastercard’s blockchain