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Artefact

Data and AI-driven business transformation consulting

Senior AI Engineer

AI Application EngineeringPosted on Nov 10
Full-timeParis, France€60k - €70k /yr

About the Job

Requirements

  • You have built an application or agent that calls a large language model and can explain what worked and what failed.
  • Your code is tested and maintainable.
  • You regularly use coding agents and verify their output.
  • You measure AI output quality with test sets and metrics, and can limit hallucinations, prompt injection, and data leaks.
  • You have experience putting an LLM application into production and maintaining it, including deployment, monitoring, cost, and latency.
  • You start from the business problem rather than the model, can recognize when AI is not the right tool, and can explain this to non-technical people.

Responsibilities

  • Build LLM applications and agents, including context design, tool calls, and multi-step workflows.
  • Design how agents use knowledge, including retrieval queries, re-ranking, and citations.
  • Build evaluation datasets and pipelines, including reference answers, automated scoring, and review by business experts.
  • Monitor answer quality in production and fix quality degradation.
  • Choose models based on quality, cost, and latency; fine-tune or distill a smaller model when prompting is insufficient.
  • Add safeguards against incorrect answers, data leaks, and prompt injection.
  • Process documents with LLMs for extraction, classification, and summaries.
  • Work with the AI Product Manager and client business experts to define good answers and review results together.
  • Review peers' code and support new hires.

Desired Qualifications

  • Experience with fine-tuning or distilling language models.
  • Education or training in machine learning or statistics, for example in data science.
  • Familiarity with agent frameworks or protocols such as MCP.
  • Experience with multimodal inputs such as documents, images, and voice.
  • Experience with LLM observability tools such as tracing and cost tracking.

About the Company

Artefact

Data and AI-driven business transformation consulting

Artefact helps organizations use data and AI to transform their operations and decision-making. It provides end-to-end services across the data value chain, from strategy and data platform implementation to governance, advanced analytics, and sector-specific AI tools, delivered through consulting and project execution. The company works with industries like FMCG, retail, and luxury goods to optimize marketing performance, customer engagement, and ROI. Artefact differentiates itself by combining consulting expertise with data science and AI capabilities across multiple regions, offering integrated, sector-focused solutions rather than just advisory services. The main goal is to help clients adopt data-driven approaches to improve efficiency, decision quality, and marketing results at scale.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Paris, France
Founded
1998

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