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Mistral AI

Applied AI Engineer, CyberSecurity

Mistral AI
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hybrid mid full-time Competitive salary and equity Paris, France

First indexed 10 Jun 2026

Description

We are seeking an Applied AI Engineer to build the customer-facing cyber service and use-cases on top of our cyber harnesses. You will turn 'we have agents' into 'we shipped something a client uses.' This role is about composing red-team/blue-team agentic workflows, configuring harnesses for real-world scenarios, and delivering value directly to clients. Your work will bridge the gap between our foundational cyber harnesses and the agentic solutions that clients deploy.

Client-Facing Agentic Solutions

  • Compose red-team / blue-team agentic workflows for production use-cases
  • Configure harnesses for cloud defense, vulnerability scanning, dynamic red-teaming, and penetration testing scenarios
  • Work directly on client use-cases, translating security requirements into agentic solutions
  • Turn prototype agents into deployed services that clients rely on

Context Engineering & Orchestration

  • Design and implement context engineering that enables agents to operate effectively in cybersecurity domains
  • Orchestrate multi-agent systems for complex security workflows
  • Build the agentic layer that sits between the harness and the client

Service Delivery

  • Ship fast and iterate based on client feedback and real-world performance
  • Operate independently while leveraging internal building blocks and frameworks
  • Collaborate with pentesters to ensure domain accuracy and effectiveness
  • Partner with SWE-Cyber to ensure the platform supports your use-case requirements

About you

  • Strong applied AI engineer with hands-on experience building agents, LLM orchestration, context engineering, evals, and RAG systems
  • You ship fast, with a bias toward action and delivery
  • Operate independently with a customer-led mindset
  • Able to reuse internal components and bricks effectively
  • Some cyber context is a real plus, but not mandatory - we can pair you with pentesters for domain depth
  • Strong problem-solving abilities and attention to detail
  • Excellent communication skills and collaborative attitude

It would be ideal if you also have:

  • Genuine cyber or pentest knowledge
  • Experience building agentic harnesses or multi-agent systems end-to-end
  • Strong background in evals and benchmarking of agent systems
  • Experience with security tooling or workflows
  • Prior work on production AI systems in regulated or high-stakes environments
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.lever.co/mistral/98e6a2ea-7049-4c8d-88b7-c9d824eea6f1