Security engineer, detection and response (UK)

Writer · London, UKmid

In short

▸Ingeniero de seguridad especializado en detección y response para plataformas de IA empresarial.
▸Diseña sistemas de detección de amenazas específicas a IA como inyección de prompts y robo de modelos, con respuesta automatizada.
▸Destaca por defender infraestructuras de IA de vanguardia frente a amenazas que no existen aún en manuales tradicionales.

Proficiency in English required for collaboration across global teams.

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What they ask for

✓Experiencia en ingeniería de seguridad con foco en detección y respuesta.
✓Capacidad para crear playbooks de respuesta automatizada y orquestación.
✓Conocimiento de amenazas específicas a IA: inyección de prompts, extracción de modelos, envenenamiento de datos.
✓Habilidades en análisis forense de ataques en infraestructuras de entrenamiento distribuidas.
✓Experiencia con telemetría y dashboards para monitoreo de seguridad en entornos de IA.
✓Colaboración estrecha con equipos de seguridad, nube y investigación de IA.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

Detection-as-codeTelemetry integrationAutomated response playbooksOrchestration workflowsGPU clustersDistributed training environmePrompt injection detectionModel extraction detectionData poisoning detectionAdversarial examples analysis

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🚀 About WRITER WRITER is where the world's leading enterprises orchestrate AI-powered work. Our vision is to expand human capacity through superintelligence. And we're proving it's possible – through powerful, trustworthy AI that unites IT and business teams together to unlock enterprise-wide transformation. With WRITER's end-to-end platform, hundreds of companies like Mars, Marriott, Uber, and Vanguard are building and deploying AI agents that are grounded in their company's data and fueled by WRITER's enterprise-grade LLMs. Valued at $1.9B and backed by industry-leading investors including Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is rapidly cementing its position as the leader in enterprise generative AI. Founded in 2020 with office hubs in San Francisco, New York City, Seattle, Austin, Chicago, and London, our team thinks big and moves fast, and we're looking for smart, hardworking builders and scalers to join us on our journey to create a better future of work with AI. About the role 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. 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. 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. This role can be based in San reporting to our head of security operations. What you’ll do 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 Build automated response playbooks and orchestration workflows that contain threats without human intervention, creating self-healing security systems that reduce mean time to response from hours to minutes while automatically remediating compromised inference endpoints Lead security incident response coordination across all teams (Cloud, AppSec, Enterprise, AI Security) when AI infrastructure or models are compromised, conducting forensic investigations on training pipeline attacks and model manipulation attempts while drafting clear incident communications for engineering and executive leadership Hunt proactively for sophisticated threats across GPU clusters and training infrastructure by analyzing model outputs for signs of compromise, reproducing AI-specific vulnerabilities from security research, and identifying visibility gaps in distributed training environments before adversaries exploit them Build detection-as-code frameworks with version control and automated deployment, onboard telemetry from AI training infrastructure and inference endpoints, and create dashboards that track model security metrics, GPU uti

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