Offensive Security Analyst - AI Specialist

Overview

Global Risk and Security (GR&S) at Vanguard enables business strategy, protects client and Vanguard interests (e.g., assets and data), and stewards a strong risk culture. Our teams leverage enterprise-wide insights, deep expertise, and trusted advice so that across Vanguard leaders and crew drive faster, stronger, risk-informed decisions.

Within GR&S, the Enterprise Security and Fraud (ES&F) sub-division is responsible for the global protection of Vanguard crew, property, data, and client assets. We are the trusted advisors that protect the pride of Vanguard with state-of-the-art security and fraud capabilities. We are a world-class destination of highly engaged, passionate, and diverse talent expected to continuously learn and develop in an ever-changing security landscape.

Our crew are our greatest resource – by joining our team you will build collaborative long-term relationships and enjoy a suite of benefits that includes comprehensive health and wellness care, work-life balance, and an investment in your future at its core

• Design and conduct Red Team operations focused on AI/ML systems, including adversarial input testing, model inversion, poisoning, and evasion attacks.
• Emulate threat actors targeting AI infrastructure (e.g., model hosting platforms, training data lakes, inference APIs).
• Develop custom tooling and payloads for AI-specific attack scenarios, including adversarial examples and synthetic data manipulation.
• Collaborate with data scientists and ML engineers to assess model robustness, fairness, and explainability under adversarial conditions.
• Lead Purple Team exercises to validate detection and response capabilities for AI-related threats.
• Produce detailed reports and executive briefings outlining risks, attack paths, and remediation strategies.
• Contribute to threat modeling and detection engineering for AI systems.
• Stay current on emerging AI threats, adversarial ML research, and regulatory implications.
• Mentor junior team members and foster a culture of offensive innovation.

• Proven experience in Red Team operations, adversary emulation, or advanced penetration testing.
• Deep understanding of AI/ML concepts including supervised/unsupervised learning, NLP, computer vision, and reinforcement learning.
• Experience with adversarial ML techniques (e.g., FGSM, PGD, Deep Fool, model extraction).
• Strong proficiency in Python and ML frameworks (e.g., Tensor Flow, PyTorch, Scikit-learn).
• Familiarity with cloud platforms (AWS, Azure, GCP) and their AI services.
• Knowledge of MITRE ATLAS, MITRE ATT&CK, and NIST AI RMF.
• Experience with offensive tooling and scripting for automation and exploit development.
• Excellent communication skills for technical and executive audiences.

Sponsorship
Vanguard is not offering visa sponsorship for this 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.