Principal AI Security Engineer

Mastercard

Confirmed live yesterday High trust

Quick summary

Work type
On-site
Location
O Fallon, IL
Salary
$170,000–$281,000 / yr
Posted
2 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Above market

How this pay compares to similar roles

Similar $186k
This role $226k
$123k most similar roles pay here $298k

This role pays more than 82% of similar roles. Most pay $156,800–$214,500 — the shaded band above. At the midpoint, this role pays about $226k versus about $186k for comparable roles.

Based on 239 similar postings.

Employer

About Mastercard

Mastercard is a global technology company in the payments industry, processing transactions between financial institutions and merchants using its extensive network of credit, debit, and prepaid card products. Industry: Payments Technology & Financial Services

Mastercard currently has 116 open roles on FindRole.

Listed pay typically runs $122,000–$207,000 across 104 roles with salary data.

Most-posted roles

View all roles at Mastercard

At a glance

TL;DR · Principal AI Security Engineer

As a Principal, AI Security Engineer, you will serve as a technical authority within the security team to define and advance the enterprise AI security strategy. You will be responsible for designing scalable security architectures, establishing engineering standards, and developing assessment frameworks to protect AI systems against adversarial attacks and model exploitation. Your daily work involves leading red team exercises, conducting penetration testing on LLM applications, and embedding security-by-design principles into the development lifecycle. You will utilize expertise in machine learning systems, large language models, data protection, and cloud security to mitigate risks. Additionally, you will monitor regulatory requirements from bodies like NIST and OWASP while mentoring engineers and providing high-level technical guidance. This role addresses the critical challenge of securing complex AI technologies and infrastructure against evolving threats within a large-scale enterprise environment.

What you'll do

  • Define and lead enterprise security architectures, reference designs, and engineering standards for AI systems.
  • Lead complex red team exercises and penetration testing focused on LLM applications and AI models.
  • Establish security requirements and best practices for the entire AI development lifecycle.
  • Develop internal security standards and governance models based on NIST, ISO, and OWASP frameworks.
  • Research emerging threats and translate advanced research into actionable security strategies and roadmaps.
  • Provide high-level technical advisory to senior leadership on AI risk management and investment priorities.
  • Mentor security engineers and lead technical communities of practice to foster internal expertise.
  • Lead proof-of-concept initiatives to evaluate the security implications of next-generation AI technologies.

What we're looking for

  • Bachelor's or Master's degree in Computer Science, Information Security, Artificial Intelligence, or a related field.
  • Extensive experience in information security including leading AI security, application security, or security architecture at enterprise scale.
  • Deep expertise in AI technologies, machine learning systems, large language models, AI agents, and secure software engineering.
  • Strong knowledge of AI threat modeling, adversarial machine learning, model security, data security, and cloud security.
  • Proven ability to define security strategies, architectures, and governance frameworks for complex environments.
  • Ability to influence technical direction and drive adoption of security standards across diverse engineering organizations.
  • Experience presenting technical concepts, risk assessments, and strategic recommendations to senior executives and leadership.
  • Relevant certifications such as CISSP, CCSP, OSCP, GIAC, or AI Security certifications are highly desirable.

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