Research Platform Engineer - Paris - London H/F Mistral AI

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Role Summary - Software Engineering trackAs a Research Engineer on the software side, you will design and harden the codebase, tools and distributed services that let our scientists train and ship frontier-scale models. You do not need prior ML experience; what matters is writing clean, reliable code that scales.You will join our Platform REs team to build and maintain shared dev-tools, evaluation & data pipelines, training framework, cluster tooling and CI/CD.Location: Paris / London (hybrid) or remote EU/UK with one hub day per month.What will you do-Accelerate researchers by owning the complex parts of large-scale pipelines and delivering robust internal tooling.-Interface research with product: expose clean APIs, automate model pushes, surface live metrics.-Write efficient, well-tested Python and systems code; enforce code review, CI, and observability.-Design and optimise distributed services (Kubernetes / SLURM, thousands-of-GPU jobs).-Prototype utilities (CLI, dashboards) and carry them through to stable, shared libraries.About the Research Engineering teamBased in Paris and London, our REs move fluidly along the research ↔ production spectrum. Engineers can rotate between Platform and Embedded tracks as their interests evolve.About you-Master's in Computer Science (or equivalent experience).-4 + years building and operating large-scale or distributed systems.-Strong software-design instincts: modular code, tests, CI/CD, observability.-Fluency in Python plus one systems language (C++, Rust, Go or Java).-Hands-on with container orchestration and schedulers (Kubernetes / K8s, SLURM, or similar).-Comfortable profiling performance, optimising I/O, and automating workflows.-Self-starter, low-ego, collaborative, high-energy.Nice-to-haves-Exposure to ML workloads or data-processing pipelines.-Experience with GPU clusters or CUDA.-Open-source contributions or widely used internal tools.BenefitsFrance💰 Competitive cash salary and equity🥕 Food: Daily lunch vouchers🥎 Sport: Monthly contribution to a Gympass subscription🚴 Transportation: Monthly contribution to a mobility pass🧑‍⚕️ Health: Full health insurance for you and your family🍼 Parental: Generous parental leave policy🌎 Visa sponsorshipUK💰 Competitive cash salary and equity🚑 Insurance🚴 Transportation: Reimburse office parking charges, or £90 per month for public transport🥎Sport: £90 per month reimbursement for gym membership🥕 Meal voucher: £200 monthly allowance for meals💰 Pension plan: SmartPension (percentages are 5% Employee & 3% Employer)By applying, you agree to our.