Marsh & McLennan Companies

Oliver Wyman — Software Developer — Data & Analytics (DNA) Team

Marsh & McLennan Companies
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1 day ago
Montréal, CanadaSenior

Responsibilities

  • Own technical products and projects with AI at their core.
  • Design and deliver systems and machine learning models that solve commercially impactful real-world problems.
  • Translate business problems and commercial opportunities into technical solutions beyond stated requirements.
  • Challenge existing systems and processes through technical excellence and innovation.
  • Build, test, iterate, and deploy secure production solutions in client environments.
  • Stay current with advances in AI and technology trends.
  • Collaborate closely with consulting teams, clients, business functions, and end users.

Requirements

  • Strong full-stack programming and system design skills.
  • Recent hands-on experience with Python and ideally another backend language such as C#, .NET, Java, Rust, or C++.
  • Hands-on experience with at least one frontend technology such as React, TypeScript/JavaScript, or HTML/CSS.
  • Experience with AI or machine learning systems, including LLMs, prompt design, agentic workflows, evaluation harnesses, and retrieval pipelines.
  • Understanding of APIs and integrations, SQL, version control, CI/CD, and security and access considerations in client environments.
  • Data engineering experience is preferred, including reliable data pipelines, databases, data warehouses, and large-scale data integration.
  • Ability to own a project from start to finish in an ambiguous setting.
  • Strong communication skills with clients, colleagues, and non-technical business users.
  • Undergraduate degree in computer science, mathematics, engineering, or a related field.
  • Entrepreneurial mindset, ownership, problem-solving ability, curiosity, and willingness to learn.

Benefits

  • Hybrid work requiring at least three days per week in the Montreal office or onsite with clients.
  • Opportunity to work on varied AI and technology projects with clients and consulting teams.
  • Autonomy, early impact, professional development, and learning from industry experts.
  • Work focused on delivering demonstrable business value and using leading-edge AI.
Marsh & McLennan Companies

About Marsh & McLennan Companies

501-1,000 employees

Marsh McLennan is a global professional services firm providing risk, insurance and reinsurance brokerage, health, wealth, and management consulting to corporations, governments, and nonprofits. It operates through Marsh, Guy Carpenter, Mercer, and Oliver Wyman, earning fees and commissions for advisory, analytics, and placement services. Founded in 1905 and headquartered in New York, it is publicly traded on the NYSE under the ticker MMC.

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