Applied Scientist

Applied Scientist / Research Engineer - Cybersecurity - EMEAMistral AI is seeking Applied Scientists and Research Engineers to build telemetry-native security agents and specialized foundation models for observability and defense. You’ll create agents that detect, diagnose, and help resolve incidents—grounded in real-world security and SRE workflows—and evaluate them in simulated environments before hardening for production.You’ll work across model research, large-scale training, and productization with a strong emphasis on provenance, auditability, and safety.ResponsibilitiesRun pre-training, post-training and deploy state of the art models on clusters with thousands of GPUs.Develop and pre-/post-train domain-specialized foundation models for observability, security, site reliability engineering, and code repairRun large-scale experiments to balance accuracy, latency, throughput, and power under tight memory constraints; profile and fix bandwidth/compute bottlenecksManage research projects and communications with client research teamsAbout YouYou are fluent in English, and have excellent communication skills. You are at ease explaining complex technical concepts to both technical and non-technical audiencesYou have background in adversarial ML, agent/prompt security, watermarking/detectors, differential privacy, or trusted execution (TEE)You’re not afraid of contributing to a big codebase and can find yourself around independently with little guidanceYou’re expert with PyTorch or JAX; strong C++/CUDA or low-level performance skills a plus; production-grade PythonYou don’t need roadmaps: you just do. You don’t need a manager: you just shipLow-ego, collaborative and eager to learnYou have a track record of success through personal projects, professional projects or in academiaIt would be great if youHold a PhD / master in a relevant field (e.g., Mathematics, Physics, Machine Learning), but if you’re an exceptional candidate from a different background, you should applyHave contributed to a large codebase used by many (open source or in the industry)Have a track record of publications in top academic journals or conferencesHave publications in top ML/security venues and/or contributions to open-source security or observability toolsLove improving existing code by fixing typing issues, adding tests and improving CI pipelinesBenefitsWe have local offices in Paris, London, Marseille, Singapore and Palo Alto.France: Competitive cash salary and equityFrance: Daily lunch vouchersFrance: Monthly contribution to a Gympass subscriptionFrance: Monthly contribution to a mobility passFrance: Full health insurance for you and your familyFrance: Generous parental leave policyFrance: Visa sponsorshipUK: Competitive cash salary and equityUK: InsuranceUK: Reimburse office parking charges, or 90 GBP/month for public transportUK: Gym membership reimbursementUK: £200 monthly meal allowanceUK: SmartPension (5% Employee & 3% Employer)We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. If you would like more information about how your data is processed, please contact us.Seniority levelNot ApplicableEmployment typeFull-timeJob functionEngineering and Information TechnologyIndustries: Technology, Information and InternetReferrals increase your chances of interviewing at Mistral AI by 2xGet notified about new Research Engineer jobs in Paris, Île-de-France, France. #J-18808-Ljbffr