Senior AI Security Engineer (R-19324)

Shape the Future with Dun & Bradstreet

At Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. For over 180 years, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers.

The Senior AI Security Engineer is responsible for defining, designing, and advancing enterprise-wide security strategies and architectures for AI, GenAI, and machine learning platforms.

This role leads the development of secure AI systems at scale by embedding advanced security principles across the AI lifecycle and driving the adoption of standardized, security-by-design practices. The Senior AI Security Engineer partners with engineering, platform, and risk leadership to proactively address emerging AI threats, strengthen organizational security posture, and ensure resilient, compliant, and scalable AI deployments. This role operates with significant autonomy and influences security direction across multiple teams and domains.

What’s on Offer at D&B Ireland

25 days annual leave (plus 2 paid volunteer days & 1 paid un-sick day)

Holiday buy & sell (the option to buy or sell up to 5 additional days per year)

Flexible working - hybrid model

Employee Health Insurance

Mental Health Support program

Pension Contribution

Family Friendly Leave (Maternity, Paternity, Parental, Marriage and Bereavement)

Life Assurance

Educational Assistance Program

Life-Style Account (D&B will match your contributions up to €40 per month and can be used to claim for a range of health-related, leisure or lifestyle activities)

At Dun & Bradstreet, we are 6,000 friendly colleagues around the world waiting to meet you and give you the opportunity to grow your career.

Responsibilities:

Lead the design, development, and evolution of enterprise-grade security architectures for AI, GenAI, andML platforms, pipelines, and products

Define and drive security strategy, standards, and reference architectures for AI systems across the organization

Serve as a technical authority in AI security, advising engineering and leadership teams on secure design, threat mitigation, and risk acceptance decisions

Implement advanced security controls for LLM-based systems, agentic AI frameworks, and AI-driven APIs at scale

Lead complex threat modeling, red-teaming, and adversarial testing initiatives targeting AI systems, models, and data ecosystems

Establish and operationalize controls to mitigate AI-specific risks including prompt injection, data leakage, model exfiltration, model poisoning, and misuse scenarios

Drive security integration across the AI lifecycle, including model development, training, evaluation, deployment, and runtime operations

Define and implement secure identity, authentication, authorization, and trust models for human-to-AI and agent-to-agent interactions

Lead the design of secure AI data architectures, including data governance, lineage protection, and privacy-preserving mechanisms

Champion DevSecOps practices for AI platforms, embedding automated security testing, validation, and monitoring into CI/CD pipelines

Collaborate with platform, cloud, and infrastructure teams to ensure secure-by-default environments across multi-cloud ecosystems

Influence and contribute to enterprise security policies, governance frameworks, and regulatory compliance initiatives related to AI

Lead incident response and forensic analysis for AI-related security events and vulnerabilities

Mentor and coach engineers; provide technical leadership across programs and communities of practice

Drive cross-functional security initiatives, aligning stakeholders across engineering, product, legal, and risk domains

Stay at the forefront of emerging AI threats, technologies, and industry best practices, and translate insights into actionable improvements

Essential skills and/or Certifications:

Bachelor’s degree in Computer Science, Artificial Intelligence, Cybersecurity or related field

8 - 12 years of relevant experience, including significant experience in security engineering and deep specialization in AI/ML platforms.

Deep understanding of application and cloud security, threat modeling, and risk mitigation techniques.

Proven experience designing and securing large-scale distributed systems, microservices, and API ecosystems

Advanced expertise in AI/ML security, including LLMs, RAG architectures, vector databases, and agentic frameworks

Strong knowledge of AI threat models, adversarial AI techniques, and attack vectors (e.g., prompt injection, model manipulation, data poisoning)

Hands-on experience implementing security controls across data, model, API, and infrastructure layers

Extensive experience with cloud security (AWS, Azure, GCP) including IAM, network security, and platform services

Expertise in DevSecOps, automation, and secure SDLC integration

Experience with containerization, Kubernetes security, and modern infrastructure protection practices

Ability to define and influence enterprise security standards and architectural decisions

Strong leadership, stakeholder management, and communication skills

Experience working across multi-stakeholder, global engineering environments

Proficiency in Microsoft Office Suites Skills

Show an ownership mindset in everything you do; be a problem solver, be curious and be inspired to take action, be proactive, seek ways to collaborate and connect with people and teams in support of driving success.

Continuous growth mindset, keep learning through social experiences and relationships with stakeholders, experts, colleagues and mentors as well as widen and broaden your competencies through structural courses and programs.

Where applicable, fluency in English and languages relevant to the working market.

All employees and contractors working in D&B should be aware that they have responsibilities in relation to the Company’s Business Management System. This relates to information and its security, quality, environment and health and safety both during and post-employment with D&B.

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All Dun & Bradstreet job postings can be found at https://jobs.lever.co/dnb. Official communication from Dun & Bradstreet will come from an email address ending in @dnb.com.

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