Software Engineer (Generative AI and Innovation)
Marsh & McLennan Companies3 months ago
Dublin, IrelandMid Level
Responsibilities
- Own medium-scale features and components end to end, from prototypes through production-ready solutions.
- Build practical AI-powered and conventional applications that solve business and client problems.
- Develop LLM workflows using prompt engineering, tool use, structured outputs, RAG, retrieval pipelines, and agent patterns.
- Build and maintain evaluation harnesses and contribute to reliable, responsible, and cost-efficient AI solutions.
- Create reusable components, tools, and patterns for the wider Innovation team.
- Contribute to technical design discussions, experimentation, hackathons, and the broader technology community.
- Collaborate with Dublin and international Innovation teams and business stakeholders.
- Support technical quality and junior colleague development through code reviews and pairing.
Requirements
- Typically 2–5 years of software engineering experience with a record of independently delivering features.
- Experience contributing to production-grade applications.
- Hands-on JavaScript and TypeScript development with a framework such as React, Vue, or Angular.
- Backend experience with Node.js, NestJS, or similar technologies.
- Experience using Python to build AI-powered workflows, integrations, or applications.
- Understanding of integrating AI into products and business processes through APIs.
- Hands-on experience with LLMs, including prompt design, tool use, and structured outputs.
- Familiarity with RAG, retrieval pipelines, and embeddings.
- Exposure to modern agent patterns and multi-step, tool-connected workflows.
- Working knowledge of AWS and Kubernetes.
- Preferred experience taking features from experimentation through production use.
- Preferred curiosity about agent ecosystem standards such as Model Context Protocol.
- Preferred exposure to vector databases, semantic search, AI evaluation frameworks, testing approaches, and AI guardrails.
- Good communication, practical problem-solving, cross-functional collaboration, and willingness to support others.
Benefits
- Hybrid Dublin position requiring at least three days per week in the office.
- Professional development opportunities, interesting work, supportive leaders, and access to resources of a global organization.
- Inclusive and flexible work environment with career opportunities, benefits, and rewards supporting well-being.
- Reasonable support is available for candidates with disabilities or health conditions during recruitment.
Tech Stack
Categories
About Marsh & McLennan Companies
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.