Senior Staff Security Engineer, AI Security

Ripple; Greater London; On-site; GBP 140,000 - 210,000; Full time

Job summary

Ripple is seeking a Senior Staff Security Engineer focused on AI Security to lead the security strategy for AI systems and agentic workflows. You will define secure development practices, build controls, and establish governance to ensure AI initiatives are safe and compliant.

You will collaborate across Engineering, Product, and Security to implement robust AI security measures, conduct risk assessments, and publish research to advance responsible AI security in the fintech space.

Qualifications

• 10+ years of Security Engineering experience with depth in at least two domains (Product/Cloud/SOC) and hands-on AI/ML security experience.
• Solid understanding of AI and LLM security concepts (prompt injection, data poisoning, model extraction).
• Experience securing agentic AI systems (sandboxing, permission scoping, runtime monitoring).
• Cloud security across AWS/GCP/Azure, CI/CD security, container/Kubernetes security, IAM, API security.
• Threat modeling with frameworks like STRIDE, MITRE ATLAS, OWASP LLM Top 10.

Responsibilities

• Drive the AI security strategy and roadmap for Ripple's AI systems.
• Design and implement security controls for AI-enabled workflows and agentic systems.
• Own AI security across the AI SDLC with guardrails, provenance, reviews, and audit trails.
• Lead security reviews and risk assessments of AI integrations into production environments.
• Build and scale Shadow AI detection and enforce AI acceptable use policies.

Skills

Security engineering

AI/ML security

Cloud security

CI/CD security

Kubernetes security

Threat modeling

Cross-team influence

Policy & compliance

Job description

At Ripple, we're building a world where value moves like information does today. It's big, it's bold, and we're already doing it. Through our crypto solutions for financial institutions, businesses, governments and developers, we are improving the global financial system and creating greater economic fairness and opportunity for more people, in more places around the world. And we get to do the best work of our career and grow our skills surrounded by colleagues who have our backs.

If you're ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value.

THE WORK:

As a Senior Staff Security Engineer focused on AI Security, you will be Ripple's deepest technical expert at the intersection of artificial intelligence and security. This is a purpose-built, high-impact individual contributor role that spans two critical mandates: securing AI systems that Ripple builds and operates, and harnessing AI to make Ripple's security function faster, smarter, and more scalable.

WHAT YOU'LL DO:

• Drive the AI Security technical strategy and roadmap, defining how Ripple secures its AI systems, governs agentic workflows, and embeds security controls into the AI development lifecycle from day one.
• Design and implement security controls for LLM-integrated and agentic AI systems, including sandboxing, identity and permission scoping, runtime monitoring, and containment of autonomous agent actions that exceed authorized scope.
• Own AI security across the Controlled Agentic SDLC, establishing security guardrails, AI provenance standards, dual-review requirements, and audit trail controls for AI-assisted development across Ripple Engineering.
• Lead the security review and risk assessment of all AI integrations entering production, including LLM APIs, SaaS copilots, AI code editors, agentic workflows, third-party MCP servers, and vendor-embedded AI.
• Build and scale Ripple's Shadow AI detection capability, surfacing unsanctioned AI usage, driving adoption of the AI acceptable use policy, and ensuring all AI workflows operate within Ripple's auditable perimeter.
• Serve as Ripple's go-to technical resource on agentic AI risks, including MCP server security, tool poisoning, prompt injection at the orchestration layer, and excessive agency in multi-agent systems, translating emerging threats into concrete mitigations with Engineering and Product.
• Shape Ripple's external AI security posture, contributing to industry frameworks, engaging regulators, and publishing research that establishes Ripple as a credible voice in responsible AI security.

WHAT YOU'LL BRING:

• 10+ years of Security Engineering experience with demonstrated depth in at least two domains, such as Product Security, Cloud Security, or Security Operations, and meaningful hands-on exposure to AI or ML security in practice.
• Solid understanding of AI and LLM security concepts, including prompt injection, jailbreaks, data poisoning, model extraction, RAG manipulation, and agentic risks such as tool poisoning, excessive agency, and MCP server vulnerabilities.
• Experience securing agentic AI systems, including sandboxing, permission scoping, human-in-the-loop design, or runtime monitoring for autonomous workflows.
• Fluency with core Security Engineering domains including cloud security on AWS, GCP, or Azure, CI/CD pipeline security, container and Kubernetes security, IAM, and API security, with the ability to reason about how these apply in AI-specific contexts.
• Strong threat modeling instincts, whether using STRIDE, MITRE ATLAS, OWASP LLM Top 10, or your own approach, and comfort applying frameworks to architectures where the playbook remains in development.
• Experience in FinTech, crypto, or other highly regulated environments is a strong plus, ideally with exposure to frameworks like NYDFS, MAS, DORA, or SOC 2 as they relate to AI adoption.
• Proven ability to work across teams, influence technical direction without direct authority, and bring structure to problems that span Engineering, Product, and Security.
• A genuine builder's mentality. You are energized by problems without established playbooks, comfortable building in ambiguity, and motivated by raising the bar in an area that is still being defined.

Other common names for this role: AI Security Architect, LLM Security Engineer, Agentic AI Security Lead

WHO WE ARE:

Do Your Best Work

The opportunity to build in a fast-paced start-up environment with experien