> Markdown version of [/jobs/ext/424168-applied-ai-use-case-software-engineer-harness](https://www.wearedevelopers.com/jobs/ext/424168-applied-ai-use-case-software-engineer-harness). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Applied AI, Use-case, Software Engineer (Harness) - **Company:** Mistral AI - **Location:** Paris, France (Remote available) - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Cyber Security, Distributed Systems, Open Source Technology, Large Language Models, Kubernetes, Production Code, Machine Learning Operations - **Published:** June 12, 2026 - **Apply:** https://fr.indeed.com/viewjob?jk=139999f523be5471 ## About the Role We are seeking strong Software Engineers with cybersecurity experience to build and productionize our cybersecurity product offering. You will turn cutting-edge prototypes into robust, scalable services that power both our offensive and defensive security capabilities., * 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 It would be ideal if you also have: * Red-teaming, offensive-tooling, or harness-building background * Experience with orchestration internals (Temporal, Workflows, or similar) * Prior experience building a "harness for X/Y use case in cybersecurity" or similar agent system * Infrastructure knowledge: containers & Kubernetes to move fast * Experience with AI/ML systems in security contexts * Contributions to open-source security or orchestration tools ## Description Your work will directly enable Applied to deploy at client sites while giving Science the infrastructure to train against. You'll orchestrate red-team/blue-team agent loops, build on Mistral's corporate stack, and create the connectors, worker scaling, and SDKs that transform demos into production-grade services. This is a unique opportunity to shape how AI-powered cybersecurity operates at scale. What you will do Cyber Harness Productionization * 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 Mistral Stack Integration * Build on Mistral's corporate stack: Workflows (temporal-style orchestrator) 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 Service Engineering * 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 ## Related Videos - [Agentic AI: building autonomous systems for developers](https://www.wearedevelopers.com/videos/100034-agentic-ai-building-autonomous-systems-for-developers) - [Understanding Kubernetes in a visual way](https://www.wearedevelopers.com/videos/100085-understanding-kubernetes-in-a-visual-way) - [Designing the Future of Human<>Agent Collaboration](https://www.wearedevelopers.com/videos/1447-designing-the-future-of-human-agent-collaboration) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [The New AI Security Stack: Observe, Detect, Protect](https://www.wearedevelopers.com/videos/100302-the-new-ai-security-stack-observe-detect-protect) - [Agentic employees in world's most downloaded FinTech app](https://www.wearedevelopers.com/videos/100123-agentic-employees-in-world-s-most-downloaded-fintech-app) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)