Marsh & McLennan Companies

Oliver Wyman – AI Engineer (m/f/d) – Quotient AI Specialist – Madrid / London

Marsh & McLennan Companies
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2 hours ago
London, United KingdomSenior

Responsibilities

  • Build AI agent and LLM-based solutions supporting business development and project execution.
  • Develop traditional machine learning and analytical models when they are the best fit.
  • Prototype agents, avatars, and visual delivery formats.
  • Build reusable, scalable solutions and coordinate productization with Quotient Inside.
  • Translate business needs into technical execution with the Technical Business Partner.
  • Collaborate with the Platform / Infrastructure Engineer on reliable deployment and maintenance.
  • Partner with the Front-end / AI Content Creator on client-facing outputs and presentation formats.
  • Participate in client discussions and move solutions from experimentation to delivery while maintaining quality.

Requirements

  • Fluency in Python and modern AI/ML tooling across the build lifecycle.
  • Hands-on experience shipping LLM-based or machine learning solutions, ideally under time pressure.
  • Data-science-leaning candidates should have strong grounding in ML mathematics, including statistics and linear algebra, and a range of modeling techniques.
  • Software-engineering-leaning candidates should demonstrate strong engineering practice, including testing, code hygiene, and deployment.
  • Ability to make practical design decisions quickly and build solutions for real-world use.
  • Full professional English; Spanish is welcome.
  • Preferred: banking and financial services interest or experience, open-source contributions or compelling side projects, production experience with agent frameworks or LLM application patterns, experience designing for reuse and scale, and comfort managing multiple concurrent priorities.

Benefits

  • Create AI-enabled solutions with visible impact on business development and project delivery.
  • Develop technical leadership through ownership, practical design decisions, and cross-functional collaboration.
  • Gain exposure to AI engineering, product thinking, consulting-led delivery, and productization.
  • Work in a collaborative, inclusive, flexible, and newly created team with learning and growth opportunities.
  • Hybrid work with colleagues expected to be in their local office or onsite with clients at least three days per week; office-based teams identify at least one weekly anchor day.
Marsh & McLennan Companies

About Marsh & McLennan Companies

501-1,000 employees
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