Mistral AI

Research Platform Engineer

Mistral AI
hybrid mid full-time Paris
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First indexed 17 Apr 2026

Description

About Mistral AI ------------------- Mistral AI is an AI technology company that develops high-performance, optimized, open-source and cutting-edge models, products and solutions.

Role Summary – Software Engineering track --------------------------------------- As 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.

Responsibilities ---------------

  • 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 team --------------------------------- Based 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.

Benefits -------- France:

  • 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

UK:

  • 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)
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.lever.co/mistral/df0d75c1-97ef-4e50-85e6-0ffd8f5b7d7c