CareerPlan

Staff / Principal Security Engineer, AI Safety and Security

Cambridge, MA USA; London, UK; San Francisco, CA USAFull-time$192k2026-10-16 → 2026-11-10

Core

Lead security work at the boundary of AI safety and security for scientific discovery systems, investigating misuse risks and protecting sensitive models/data.

Role type

Staff/Principal Security Engineer (AI Safety)

Builds

Threat models, adversarial tests, security requirements, and evidence-based recommendations for safe deployment of AI systems.

Domain

AI Safety, Security, Scientific Discovery

Deliverable

production ML models

Required skills

Security architecture, offensive security, incident response, threat modeling, adversarial testing, technical investigation, clear writing, cross-disciplinary reasoning

Preferred skills

Securing ML infrastructure, evaluating safeguards/adversarial robustness, translating risk assessments to technical requirements, working in high-consequence scientific environments

Technologies

AI models, scientific workflows, automated laboratories

Responsibilities

Investigate how dangerous misuse or compromise could occur across models and services; Run focused adversarial tests and build prototypes to identify weaknesses; Turn capability assessments into concrete security requirements; Define evidence criteria to demonstrate controls work together; Prioritize security changes and verify results with engineering teams; Develop methods and guidance for others to apply to new problems

Seniority

Staff/Principal, hands-on IC with strategic impact