Cyber Harness Engineer: Production-Ready Security & Orchestration

Mistral AI; Paris; Sur place; EUR 75 000 - 110 000; Plein temps

Avantages offerts par ce poste

Healthcare coverage

Relocation support

Résumé du poste

Mistral AI is seeking software engineers with cybersecurity experience to build and productionize our cyber harness and related services. You will turn cutting-edge prototypes into robust, scalable offerings that power both our offensive and defensive security capabilities.

Your work will enable Applied to deploy at client sites while giving Science the infrastructure to train against. You will orchestrate red-team/blue-team loops, build connectors, workers, and SDKs that transform demos into

Qualifications

• Strong software engineer with hands-on experience building cybersecurity products or tooling.
• Comfortable with agentic / LLM orchestration and context engineering.
• Builder mindset with a track record of shipping production-quality code.
• Experience with distributed systems and service architecture.
• Strong problem-solving abilities and attention to detail.
• Excellent communication skills and collaborative attitude.

Responsabilités

• Build and productionize the cyber harness and service prototype, turning research into deployable solutions
• Orchestrate red-team / blue-team agent loops: find vuln -> 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

Software engineering

Cybersecurity

LLM orchestration

Context engineering

Distributed systems

Team collaboration

Outils

Kubernetes

Containers

Temporal

Workflows

Description du poste

Mistral AI is seeking software engineers with cybersecurity experience to build and productionize our cyber harness and related services. You will turn cutting-edge prototypes into robust, scalable offerings that power both our offensive and defensive security capabilities.

Your work will enable Applied to deploy at client sites while giving Science the infrastructure to train against. You will orchestrate red-team/blue-team loops, build connectors, workers, and SDKs that transform demos into