{"id":163442,"url":"https://alion.io/job/mistral-ai-research-engineer-data-infrastructure-2","title":"Research Engineer, Data Infrastructure","company":{"id":22,"name":"Mistral AI","domain":"mistral.ai","url":"https://alion.io/company/mistral-ai","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":95,"open_postings":197,"ghost_share":0,"stale_share":0.005,"repost_share":0,"time_to_fill_p50_days":64,"computed_at":"2026-10-26T05:57:25Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Paris, France","Zurich, Switzerland","Warsaw, Poland","London, United Kingdom"],"countries":["FR","CH","PL","GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":53000,"max_usd":120000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":8},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Fine-tuning","optional":false},{"name":"Kubernetes","optional":false},{"name":"Mistral SDK","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Python","optional":false},{"name":"SLURM","optional":false}],"status":"live","first_seen_at":"2026-07-10T07:15:57Z","employer_posted_date":"2026-07-10","last_verified_at":"2026-10-27T00:14:57Z","board_verified":true,"closed_at":null,"days_open":108,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":107},"description":"About Mistral\nMistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector, co-creating customized AI systems that they can run on their terms.\nWe are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.\nRole Summary\nThe Data Infrastructure team at Mistral AI is architecting the backbone of our frontier model training and fine-tuning ecosystem. We are building the specialized compute and data fabrics required to power the development of world-class AI.\nOur vision is to operate some of the largest compute fleets in production and build data lakes and metadata systems with a roadmap toward exabyte-scale architecture. We are currently in the process of building a high-performance training platform designed for massive scale across both on-premise and cloud-native Kubernetes environments.\nWe are leading a strategic transition from legacy scheduling to modern orchestration. With numerous clusters distributed across various regions, we are focussed on implementing sophisticated multi-cluster orchestration and cloud-bursting capabilities to better utilize our global resources and ensure our researchers have seamless access to compute wherever it resides. Our mission is to evolve our current systems into a platform that is as durable as it is flexible.\nLocation: Paris / Warsaw / Zurich / London (hybrid) or remote EU/UK with one hub visit per month.\nAbout the Role\nThis role focuses on building and operating the next generation of data infrastructure at Mistral AI. You will be a core contributor to our evolution, helping us design and scale massive compute fleets and storage systems designed for high performance and scalability.\nYou will help us move toward a future of decoupled control and data planes, scaling big data compute and storage platforms while ensuring secure and governed data access for MLOps and research. You will take full lifecycle ownership: from architecting the migration away from legacy orchestrators to implementing production-grade pipelines and participating in on-call rotations for critical training jobs.\nIn this role, you will:\nBuild & Scale: Help us reach our goal of operating massive distributed compute and storage systems\n\nGlobal Orchestration: Architect and maintain multi-cluster orchestration layers to optimize workload placement across diverse hardware and regions.\n\nDesign Future-Proof Storage: Architect our transition to modern storage formats to handle fine-tuning datasets at a scale that anticipates exabyte growth.\n\nPlatform Engineering: Contribute to the development of our internal training platform, ensuring seamless model training and fine-tuning capabilities across Kubernetes and SLURM based environments.\n\nMetadata & Lineage: Implement and manage systems to provide clear visibility and lineage as our data and model pipelines grow in complexity.\n\nOperational Excellence: Use modern deployment workflows to manage cloud-native deployments, ensuring our data platform can scale by orders of magnitude while remaining reliable and efficient.\n\nYou might thrive in this role if you:\nHave 4+ years of experience in Data Infrastructure, MLOps, or Infrastructure Engineering.\n\nHave experience or a strong interest in supporting foundational compute and storage platforms.\n\nAre proficient in Python and enjoy solving the \"brittle data lake\" problem with modern, columnar storage standards.\n\nAre well-versed in Kubernetes-native tooling and excited to debug large-scale distributed systems across multi-cluster environments.\n\nTake pride in building and operating scalable, reliable, and secure systems from the ground up.\n\nAre comfortable with ambiguity and the challenges of building high-scale infrastructure in a rapid-growth AI environment.\n\nLocation and Remote\nThis role is primarily based at one of our European offices (Paris, London, Warsaw and Zurich). We will prioritize candidates who either reside there or are open to relocating. We strongly believe in the value of in-person collaboration to foster strong relationships and seamless communication within our team. In certain specific situations, we will also consider remote candidates based in one of the countries listed in this job posting - currently France, UK, Poland and Switzerland). In that case, we ask all new hires to visit the local hub:\nfor the first week of their onboarding (accommodation and travelling covered)\nthen at least 3 days per month\nWhat We Offer\nWe offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.\nFor the most up-to-date details on benefits available in your location, please refer to our Benefits page.\nPrivacy Policy\nYour privacy matters to us. You can learn more about how we handle your personal data in our Applicant Privacy Policy.","description_format":"text","description_chars":5431,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Parental leave","Retirement plans","Wellness"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"},{"name":"United Kingdom","iso":"GB","kind":"country"},{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["LLM & Generative AI","Code Intelligence","Foundation Models","AI Research Labs"],"lifecycle":[{"event":"open","at":"2026-07-10T07:15:57Z"}],"visa":[],"liveness":{"score":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.68,"p_room":0.36,"age_days":107,"expected_fill_days":64,"reasons":["conf:0","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/mistral-ai-research-engineer-data-infrastructure-2","json_url":"https://alion.io/job/mistral-ai-research-engineer-data-infrastructure-2.json","meta":{"generated_at":"2026-10-27T03:09:33Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":2595,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":22},"rest":"https://alion.io/mcp/rest/get_company?id=22"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmistral-ai-research-engineer-data-infrastructure-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmistral-ai-research-engineer-data-infrastructure-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmistral-ai-research-engineer-data-infrastructure-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mistral-ai-research-engineer-data-infrastructure-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmistral-ai-research-engineer-data-infrastructure-2"}]}