Mistral AI

CyberSecurity, Offensive Security Engineer

Mistral AI
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2 months ago
Paris, FranceSenior

Responsibilities

  • Hunt for vulnerabilities across agentic applications, cloud infrastructure, foundational models, AI-driven workflows, custom infrastructure, and user-facing interfaces.
  • Design and execute red and purple team exercises simulating sophisticated adversarial scenarios.
  • Conduct in-depth penetration testing and build automated offensive security tooling.
  • Partner with defensive teams to improve detection engineering and incident response.
  • Communicate security findings and risk implications to technical and non-technical stakeholders.
  • Contribute attacker-informed perspectives to threat modeling, risk assessment, architecture, and security strategy.

Requirements

  • 7+ years of offensive security experience, or equivalent expertise demonstrated through exceptional achievements.
  • Deep knowledge of AI/ML security risks, including prompt injection, data leakage, model manipulation, and abuse of dynamic UI components.
  • Hands-on experience with Kubernetes and containerized environments, AWS, GCP, or Azure, CI/CD pipelines, and GitHub security best practices.
  • Experience with macOS/Linux internals and Python/React-based applications.
  • Ability to write robust tools, automate offensive workflows, and contribute to defensive solutions in complex codebases.
  • Strong understanding of trust boundaries and risk assessment, plus excellent communication and collaboration skills.
  • Preferred experience in AI, data science, software engineering, detection engineering, SRE, security architecture, high-growth startups, or research-driven organizations.

Benefits

  • Benefits may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.
  • Benefits vary by country and the role's location-specific details are provided through Mistral's Benefits page.
Mistral AI

About Mistral AI

1,001-5,000 employees

Mistral AI builds foundation language models and full‑stack AI solutions for enterprises, offering APIs, on‑prem deployment, developer tools, and applications. The privately held company, founded in 2023 and headquartered in Paris, partners with organizations in finance, manufacturing, defense, healthcare, and the public sector to co‑create customized systems. It releases open‑source models alongside commercial offerings and makes its models available through major cloud marketplaces.

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