Security engineer, detection and response (UK)

<p style="min-height:1.5em"><strong> 🚀 About WRITER</strong></p><p style="min-height:1.5em">WRITER is the AI platform built for the world’s most ambitious marketing and revenue teams, bringing the frontier of AI to the people who drive enterprise growth. With WRITER, autonomous agents work across the buyer journey, continuously executing on market signals and enterprise intelligence to grow revenue faster. Every agent action and asset is grounded in trust, built on an Enterprise Brain that unites brand, product, and company knowledge with fiduciary-grade governance and compliance. </p><p style="min-height:1.5em"></p><p style="min-height:1.5em">Fortune 500 companies are transforming how they go to market with WRITER, including 3 of the top 5 US banks, 2 of the 5 largest global CPG conglomerates, and 4 of the top 5 US healthcare insurers. Founded in 2020, WRITER is backed by investors including Insight Partners, ICONIQ, Radical Ventures, Premji Invest, Balderton, B Capital, Salesforce Ventures, Adobe Ventures, Accenture, Citi Ventures, IBM Ventures, WndrCo, and others. Learn more at <a target="_blank" rel="noopener noreferrer nofollow" href="http://WRITER.com">WRITER.com</a>.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>📐 About the role</strong></p><p style="min-height:1.5em">Join WRITER's security team as a staff detection and response engineer and help protect the AI infrastructure that's transforming how the world works. You'll build sophisticated detection systems that identify attacks targeting our AI platform, training data, and model deployments while creating automated response capabilities that scale with our explosive growth. This isn't just traditional security work – you're defending cutting-edge AI/AGI systems against adversaries who are evolving their tactics as fast as AI itself advances.</p><p style="min-height:1.5em">This role combines hands-on security engineering with strategic thinking to stay ahead of novel threats that don't exist in textbooks yet. You'll be the operational arm of our security function, translating threat intelligence into real-time detections, coordinating incident response across multiple teams, and hunting for sophisticated attacks across GPU clusters and distributed training environments. If you're excited by the challenge of securing systems that are fundamentally different from anything you've protected before, this is your opportunity to define what AI security engineering looks like at scale.</p><p style="min-height:1.5em">You'll work closely with our AI Security research team, Cloud Infrastructure, Software Security Engineering, and AI researchers to build a defense-in-depth strategy that protects one of the most valuable AI platforms in the industry. The threats are real, the stakes are high, and the problems are intellectually fascinating.</p><p style="min-height:1.5em">This role can be based in<strong> </strong>San reporting to our head of security operations.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>🦸🏻‍♀️ What you’ll do</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Design and implement detection strategies that identify AI-specific threats including prompt injection, model extraction, data poisoning, adversarial examples, and unauthorized access to training datasets or model weights across our distributed infrastructure</p></li><li><p style="min-height:1.5em">Build automated response playbooks and orchestration workflows that contain threats without human intervention, crea