Fidelity Security jobs

About Northern Trust:

Northern Trust, a Fortune 500 company, is a globally recognized, award-winning financial institution that has been in continuous operation since 1889.

Northern Trust is proud to provide innovative financial services and guidance to the world’s most successful individuals, families, and institutions by remaining true to our enduring principles of service, expertise, and integrity. With more than 130 years of financial experience and over 22,000 partners, we serve the world’s most sophisticated clients using leading technology and exceptional service.

With the rapid advancement of frontier AI capabilities—particularly those enabling the identification and exploitation of vulnerabilities—there is an increasing need to proactively defend against AI-driven threats. The AI Threat Defense Analyst plays a critical role in anticipating, detecting, and disrupting these threats at scale, ensuring the organization maintains pace with the speed and sophistication of modern adversaries. This role serves as a strategic bridge across Threat Intelligence, Detection Engineering, Threat Hunting, Purple team and Attack Surface Management to ensure the organization stays ahead of adversarial innovation.

Key responsibilities:

• Continuously research new and emerging CVEs, misconfigurations, or attack patterns that relate to AI-specific components. Partners with ASM and works closely with TIGER team.
• Rank vulnerabilities identified based on severity, exploitability, and business impact. Assist in deciding which AI vulnerabilities, attack patterns, and exposure windows warrant enterprise focus.
• Partner with Purple team for validation of emerging attack techniques/vulnerabilities through testing, proof-of-concept development, where possible.
• Work with threat hunting to proactive hunt against our own environment, based on Early identification of exploitation signs and exposure windows shortens our mean time to respond and reduces potential blast radius.
• Partner closely with Detection Engineering to translate emerging AI threats, vulnerabilities, and exploit patterns into high-fidelity detections and telemetry requirements.

Qualifications

• Proven cybersecurity experience with demonstrated leadership in threat management, incident response, or security operations.
• Strong understanding of modern adversary TTPs, including AI‑enabled threats, automation abuse, and emerging attack techniques.
• Hands-on experience securing LLMs, GenAI platforms, or ML pipelines.
• Familiarity with MITRE ATLAS, OWASP Top 10 for LLMs, or similar frameworks.

Working with Us:

As a Northern Trust partner, greater achievements await. You will be part of a flexible and collaborative work culture in an organization where financial strength and stability is an asset that emboldens us to explore new ideas.

Movement within the organization is encouraged, senior leaders are accessible, and you can take pride in working for a company committed to assisting the communities we serve! Join a workplace with a greater purpose.

We’d love to learn more about how your interests and experience could be a fit with one of the world’s most admired and sustainable companies! Build your career with us and apply today. #MadeForGreater

Reasonable accommodation

Northern Trust is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please email our HR Service Center at MyHRHelp@ntrs.com.

We hope you’re excited about the role and the opportunity to work with us. We value an inclusive workplace and understand flexibility means different things to different people.

Apply today and talk to us about your flexible working requirements and together we can achieve greater.