Cyber Harness Software Engineer

Mistral; Paris; Hybride; EUR 90 000 - 140 000; Plein temps

Avantages offerts par ce poste

Competitive salary and equity

Health insurance

Transportation allowance

Sport allowance

Meal vouchers

Private pension plan

Generous parental leave policy

Visa sponsorship

Résumé du poste

Mistral AI seeks strong Software Engineers with cybersecurity experience to build and productionise its cybersecurity product offering. You will turn cutting-edge prototypes into robust, scalable services powering both offensive and defensive security capabilities.

Your work will enable Applied deployments at client sites while giving Science the infrastructure to train against. You’ll integrate red‑team/blue‑team loops and connect, scale and package SDKs for production use.

Qualifications

• Strong software engineer with hands-on cybersecurity product experience.
• Familiar with agentic / LLM orchestration and context engineering.
• Track record of shipping production-quality code.
• Experience designing distributed systems and service architectures.
• Excellent problem-solving and collaboration skills.

Responsabilités

• Build and productionise the cyber harness and service prototype, turning research into deployable solutions.
• Orchestrate red-team / blue-team agent loops: find vulnerability → patch → redeploy → re-test.
• Develop the context engineering that enables autonomous security workflows.
• Create connectors, worker scaling mechanisms, SDKs, and packaging that make demos into services.
• Build on Mistral's corporate stack: Workflows and Vibe.
• Work with containers/Kubernetes to deploy and scale cyber capabilities.
• Leverage Mistral Models to power agentic security workflows.
• Migrate existing prototypes onto our production infrastructure.
• Design and implement the engineering foundation that enables Applied to deploy at clients.
• Create the infrastructure Science can train against for continuous improvement.
• Ensure the cyber harness is robust, scalable, and maintainable.
• Collaborate with security and engineering teams to integrate cyber capabilities.

Connaissances

Cybersecurity product experience

LLM orchestration

Distributed systems

Production-grade code

Team collaboration

Outils

Temporal

Kubernetes

Containers

Vibe

Workflows

Description du poste

Mistral AI seeks strong Software Engineers with cybersecurity experience to build and productionise its cybersecurity product offering. You will turn cutting-edge prototypes into robust, scalable services powering both offensive and defensive security capabilities.

Your work will enable Applied deployments at client sites while giving Science the infrastructure to train against. You’ll integrate red‑team/blue‑team loops and connect, scale and package SDKs for production use.