Frontier Cybersecurity AI Scientist

Cyber StrategiX; Paris; Hybrid; EUR 120,000 - 160,000; Full time

Benefits offered by this job

Healthcare coverage

Parental leave

Relocation support

Wellness programs

Meal allowances

Transportation allowances

Job summary

Mistral AI is seeking Applied Scientists to build frontier cybersecurity models. You will develop SOTA models across vulnerability analysis, incident response and remediation, building environments, training-data pipelines, and evaluations to deliver trustworthy AI for security.

You will join researchers, engineers, and product builders who thrive on tackling complex real-world problems and collaborating across teams to ship high-impact results.

Qualifications

• Fluent English with excellent communication skills across technical and non-technical audiences.
• Experience building harnesses, benchmarks or RL environments for code, agentic or security tasks.
• Hands-on security background in vulnerability research, exploit development, red teaming, or detection and incident response.
• Not afraid of contributing to a big codebase and navigating independently.

Responsibilities

• Develop, pre-train and post-train domain-specialized foundation models for agentic defensive security.
• Work across diverse real-world problems to shape AI for cybersecurity.
• Design evaluations and benchmarks that measure realistic security capability on customer tasks.
• Build sandboxed environments, RL tasks, and verifiers grounded in real workflows and curate training data.
• Develop tools and frameworks to facilitate data generation, model training, evaluation and deployment.
• Own technical delivery across project sprints and communicate research with customer teams.

Skills

Fluent English

Security background

Python coding

Independent worker

Research communication

Education

PhD / Master in a relevant field

Tools

Python

Job description

Mistral AI is seeking Applied Scientists to build frontier cybersecurity models. You will develop SOTA models across vulnerability analysis, incident response and remediation, building environments, training-data pipelines, and evaluations to deliver trustworthy AI for security.

You will join researchers, engineers, and product builders who thrive on tackling complex real-world problems and collaborating across teams to ship high-impact results.