{"id":1137842,"url":"https://alion.io/job/mistral-ai-engineering-team-lead-sandbox","title":"Engineering Team Lead, Sandbox","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":199,"ghost_share":0,"stale_share":0.005,"repost_share":0,"time_to_fill_p50_days":65,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Leadership","role_family":"Leadership","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Paris, France","Zurich, Switzerland","Madrid, Spain","Amsterdam, Netherlands","Warsaw, Poland","Linz, Austria","London, United Kingdom","Berlin, Germany","Munich, Germany"],"countries":["FR","CH","ES","NL","PL","AT","GB","DE"],"hiring_countries":["DE","FR","GB","AT","NL","PL","CH","ES"],"hiring_countries_total":8,"salary":null,"salary_estimate":{"min_usd":58000,"max_usd":106000,"period":"year","method":"role_seniority_country_cell","sample_n":66},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Go","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Reinforcement Learning","optional":false}],"status":"live","first_seen_at":"2026-09-23T07:51:12Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-23T14:48:51Z","board_verified":true,"closed_at":null,"days_open":30,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":29},"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.\nThe team\nMistral is building a sovereign AI cloud for Europe. Our customers in finance, healthcare, and the public sector run frontier models on European-jurisdiction infrastructure, and the Cloud Platform team builds the systems that make that possible - compute orchestration, Kubernetes, bare metal, storage, networking, and the datacenter fleet that runs it all.\nWe run it all on our own metal, our own network, our own datacenters - which means when something breaks, the fix is ours to write.\nEuropean Compute Units let enterprises commit to multi-year capacity on that infrastructure, and we are scaling toward a gigawatt of compute across Europe by 2030. You will design and ship the layer every sovereign AI deployment depends on and shape the team building it.\nThe Role\nThis is a people-leadership role from day one. You will manage the team - hiring, coaching, performance, growth paths, honest feedback - while staying close to the code: roughly half your time in architecture decisions and the hardest technical problems the team faces, the other half leading your squad. If you are looking for a senior IC role, this is not it.\nAI agents don't run in browsers. They run in sandboxes - and you will lead the team building ours.\nWe build secure, isolated, network-controlled environments with snapshotting primitives, designed for AI agents and reinforcement-learning workloads. An RL training run doesn't need one environment; it needs thousands, created and destroyed every second. An agent needs to be sandboxed from the world while still feeling fast enough to be useful. That tension - airtight isolation, at fleet scale, at low latency - is the product.\nYour customers are the people building the next generation of AI software on our infrastructure; the primitives you ship become the runtime their agents live in.\nWhat You Will Do\nBuild the isolation layer: microVMs or containers, namespaces, cgroups, seccomp, snapshot and restore.\n\nOwn the security boundary. Customers run code they didn't write and can't fully trust - your systems make that safe.\n\nScale to fleets: creation latency, density, and lifecycle management for thousands of concurrent environments.\n\nWrite Go alongside your team and own the architecture and the hardest implementation decisions.\n\nGrow the engineers, not just the software - set the standard for ownership and coach people past their comfort zone.\n\nOwn people management for the team: hiring, performance, growth paths, and honest feedback.\n\nPartner with Product Managers to turn frontier research needs into shippable primitives.\n\nWhat We're Looking For\n2+ years of real people leadership. You have managed engineers - hired, coached, given honest feedback, and grown them. Hands-on contribution matters here, but this role is judged on the team you build and lead, not just the code you write.\n\nDeep Linux internals: namespaces, cgroups, seccomp, virtualization - ideally microVMs of the Firecracker class.\n\nYou have shipped production systems in Go. Not dabbled. Shipped.\n\nYou understand network isolation at the packet level - not just firewall rules.\n\nPerformance instincts: you know what a syscall costs, and you have the profiles to prove you've cared.\n\n8+ years building backend or infrastructure systems.\n\nYou have partnered with product, design, and business teams to ship software that reached real users.\n\nA low-ego, team-first mindset. We care less about your exact domain and more about whether you are the kind of technical force other engineers want to work alongside.\n\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":4782,"description_truncated":false,"requirements":{"experience_years_min":null,"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":"Germany","iso":"DE","kind":"country"},{"name":"France","iso":"FR","kind":"country"},{"name":"United Kingdom","iso":"GB","kind":"country"},{"name":"Austria","iso":"AT","kind":"country"},{"name":"Netherlands","iso":"NL","kind":"country"},{"name":"Poland","iso":"PL","kind":"country"},{"name":"Switzerland","iso":"CH","kind":"country"},{"name":"Paris","iso":null,"kind":"city"},{"name":"Zurich","iso":null,"kind":"city"},{"name":"Berlin","iso":null,"kind":"city"},{"name":"London","iso":null,"kind":"city"},{"name":"Amsterdam","iso":null,"kind":"city"},{"name":"Warsaw","iso":null,"kind":"city"},{"name":"Madrid","iso":null,"kind":"city"},{"name":"Linz","iso":null,"kind":"city"},{"name":"Spain","iso":"ES","kind":"country"},{"name":"Munich","iso":null,"kind":"city"}],"hiring_excludes":[],"relocation_offered":true,"industries":["LLM & Generative AI","Code Intelligence","Foundation Models","AI Research Labs"],"lifecycle":[{"event":"open","at":"2026-09-23T08:57:49Z"}],"visa":[],"liveness":{"score":78,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.866,"p_room":0.9,"age_days":29,"expected_fill_days":65,"reasons":["conf:1","velocity","win:mid","comp:brand"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/mistral-ai-engineering-team-lead-sandbox","json_url":"https://alion.io/job/mistral-ai-engineering-team-lead-sandbox.json","meta":{"generated_at":"2026-10-23T14:52:45Z","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":22401,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"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-engineering-team-lead-sandbox"},{"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-engineering-team-lead-sandbox"},{"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-engineering-team-lead-sandbox"},{"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-engineering-team-lead-sandbox\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmistral-ai-engineering-team-lead-sandbox"}]}