Senior Information Security Engineer

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.

About the role

Mastercard is seeking a highly motivated security professional to join the Cryptographic Compliance & Risk Management team. This role is responsible for strengthening Mastercard's enterprise cryptographic governance capabilities by assessing compliance with cryptographic and key management requirements, identifying risk, and driving remediation across technology platforms. As cryptographic threats, regulatory expectations, and technology ecosystems continue to evolve, this position will help ensure that Mastercard's applications, infrastructure, cloud services, and operational environments comply with enterprise security standards and industry regulations. The ideal candidate combines technical security expertise with risk management and governance skills and can effectively influence stakeholders to achieve sustainable compliance outcomes.

Responsibilities

• Drive execution of Mastercard's Cryptographic Compliance strategy and roadmap.
• Assess applications, platforms, infrastructure, cloud environments, and services for adherence to cryptographic and key management standards.
• Identify cryptographic compliance gaps, control weaknesses, and security risks, and partner with stakeholders to develop remediation plans.
• Provide guidance on risk-based remediation approaches, compensating controls, and modernization strategies for legacy cryptographic implementations.
• Support enterprise-wide cryptographic assessments, reviews, audits, and reporting activities.
• Collaborate with engineering, architecture, product, infrastructure, and security teams to integrate cryptographic requirements into technology delivery processes.
• Define, document, and maintain repeatable governance processes, compliance validation activities, and control assessment methodologies.
• Analyze emerging regulatory, industry, and security requirements and translate them into actionable guidance.
• Develop metrics, dashboards, and reports that provide visibility into cryptographic compliance posture, risk exposure, and remediation progress.
• Support strategic initiatives including:
  • Cryptographic inventory and discovery
  • Key management modernization
  • Cryptographic risk reduction programs
  • Post-Quantum Cryptography (PQC) readiness and migration planning
• Influence technology teams and business partners to prioritize remediation activities and achieve compliance objectives.

Requirements

• Experience in Information Security, Security Risk Management, Governance, Risk and Compliance (GRC), or Security Engineering.
• Strong understanding of information security principles, risk management frameworks, and compliance practices.
• Knowledge of applied cryptography and key management concepts, including:
  • Encryption
  • Hashing
  • Digital certificates
  • TLS/SSL
  • PKI
  • HSMs
  • PKCS#12
• Experience assessing security controls and driving remediation in complex enterprise environments.
• Familiarity with industry and regulatory standards, including:
  • PCI DSS
  • FIPS
  • ISO 27001/27002
  • NIST frameworks and guidance
• Ability to evaluate risk, prioritize remediation efforts, and influence technical and non-technical stakeholders.
• Strong analytical, problem-solving, verbal, and written communication skills.
• Ability to communicate complex security requirements in a clear, business-focused manner.

Preferred Qualifications

• Experience leading or supporting cryptographic inventory and discovery programs.
• Knowledge of Post-Quantum Cryptography (PQC) initiatives and migration planning.
• Cloud security experience across modern cloud platforms and services.
• Experience with PKI technologies and certificate lifecycle management.
• Experience supporting payment industry or retail HSM environments.
• Security metrics, reporting, and risk analytics experience.
• Familiarity with modern application architectures and software delivery pipelines.

Skills

• Cryptographic Compliance
• Key Management
• Governance
• Security Risk Assessment
• Security Controls Validation
• Regulatory Compliance
• Security Engineering
• Risk Remediation Management
• Stakeholder Engagement and Influence
• Security Reporting and Analytics
• Enterprise Governance

Relevant Experience

Candidates with experience in one or more of the following areas are encouraged to apply:

• Security Governance, Risk, and Compliance (GRC)
• Security Engineering
• Security Consulting
• Technology Risk Management
• Cryptographic Compliance Programs
• Key Management Programs
• Application Security
• Infrastructure Security
• Cloud Security

Benefits

• Insurance (including medical, prescription drug, dental, vision, disability, life insurance)
• Flexible spending account and health savings account
• Paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave)
• 80 hours of Paid Sick and Safe Time
• 25 days of vacation time and 5 personal days (pro-rated based on date of hire)
• 10 annual paid U.S. observed holidays
• 401k with a best-in-class company match
• Deferred compensation for eligible roles
• Fitness reimbursement or on-site fitness facilities
• Eligibility for tuition reimbursement

Pay

O'Fallon, Missouri: $115,000 - $184,000 USD