Senior AI Application Security Pentester

The Vanguard Group • Dallas, TX

12d • Hybrid

About The Position

At Vanguard, we don't just have a mission—we're on a mission. To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best. Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection. We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience.

Requirements

• Minimum 8 years in IT security, application security, or penetration testing, with hands-on experience in AI/ML environments preferred.
• Undergraduate degree in a related field or equivalent combination of training and experience.
• Strong knowledge of penetration testing methodologies and tools.
• Familiarity with AI/ML frameworks, adversarial attack techniques, and model security.
• Understanding of secure coding practices and cloud environments.

Nice To Haves

• Preferred credentials include CISSP, GPEN, GWAPT, CEH, or similar.

Responsibilities

• Lead AI Security Assessments: Design and execute penetration tests targeting AI applications, LLM integrations, and machine learning workflows.
• Identify Vulnerabilities: Conduct adversarial testing, model robustness evaluations, and risk analyses to uncover weaknesses in AI architectures, training data, and deployment environments.
• Collaborate Across Teams: Work closely with engineering and data science teams to implement secure development practices and mitigate AI-specific risks.
• Develop Best Practices: Establish security standards for AI systems, update policies, and recommend enhancements to address emerging threats.
• Ensure Compliance: Validate adherence to ethical, regulatory, and industry standards for AI security.
• Stay Ahead of Trends: Act as a subject matter expert on AI security, monitoring evolving threats and technologies.
• Support Broader Security Initiatives: Participate in enterprise-wide security assessments, risk analyses, and contingency planning for critical systems.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 5,001-10,000 employees