Ernst and Young

Pilote / Product Owner Agentic AI Microsoft Expérimenté H/F FY27

Ernst and Young
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5 days ago
Paris, FranceMid Level / Senior

Responsibilities

  • Develop generative AI applications based on large language models.
  • Design RAG pipelines covering document ingestion, embeddings, vector search, retrieval, ranking, and generation.
  • Integrate models through APIs and cloud platforms.
  • Create APIs, backend services, and application interfaces.
  • Implement testing, evaluation, monitoring, and logging.
  • Continuously improve prompts, orchestration chains, and AI components.
  • Integrate solutions with client information systems, identity and access management, APIs, document databases, and business tools.
  • Use AI-assisted development tools to accelerate building, testing, and refactoring.

Requirements

  • Relevant experience in software engineering, data engineering, or machine learning engineering, followed by GenAI application development.
  • Proficiency in one or more of Python, FastAPI, TypeScript, or Node.js.
  • Knowledge of LangChain, LlamaIndex, Semantic Kernel, or equivalent frameworks.
  • Experience with Azure OpenAI, OpenAI API, Mistral, Anthropic, AWS Bedrock, or Google Vertex AI.
  • Familiarity with vector databases and search systems such as Azure AI Search, pgvector, Pinecone, Weaviate, Elasticsearch, or OpenSearch.
  • Knowledge of Docker, GitHub Actions, Azure DevOps, or GitLab CI, together with CI/CD practices.
  • Experience using or willingness to use Cursor, Claude Code, or Codex.
  • Three to seven years of relevant experience in software engineering, data engineering, machine learning engineering, and GenAI application development.
  • Experience developing a GenAI application used by real users is an advantage.
  • Ability to evaluate LLM response quality and awareness of security, confidentiality, and hallucination issues.

Benefits

  • Flexible working environment through Smartworking@EY.
  • International mobility opportunities and collaboration with globally connected teams.
  • Annual discretionary bonus, profit-sharing bonus, RTT days, advantageous health insurance, and meal vouchers.
  • Reimbursement of 75% of public transportation subscriptions or financial assistance for bicycle purchase.
  • Referral bonuses, discounted Wellpass sports membership, free admission to several museums, and privileged access to the Paris Opera.
  • Recruitment process includes three HR and business interviews conducted remotely and in person.

Tech Stack

DockerElasticsearchFastAPIGitHub ActionsGitLab CI/CDNode.jsPythonTypeScript
Ernst and Young

About Ernst and Young

10,000+ employees

Ernst & Young (EY) provides audit/assurance, tax, consulting, strategy and transactions services to enterprises, financial institutions, and public‑sector clients. Structured as a global network of partner‑owned member firms, it sells professional services on a fee basis, including a dedicated Financial Services Organization for banking, insurance, and capital markets. Headquartered in London, EY was formed in 1989 from the merger of Ernst & Whinney and Arthur Young, and operates in 150+ countries.

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