Lead Software Engineer, Team Lead

We are seeking a talented individual to join our Client Analytics & Technology (CAT) team at Mercer, a Marsh business. This role will be based in London. This is a hybrid role that has a requirement of working at least two days a week in the office.

The CAT team builds and runs internal and client-facing analytics and technology products across Mercer businesses. You will be the hands-on Tech Lead for a small UK-based team working closely with an India engineering pod, owning technical direction, delivery, and day-to-day engineering leadership. The role requires strong domain partnership (risk advisory / consulting stakeholders) alongside pragmatic software engineering and architecture judgment.

Lead end-to-end delivery of CAT products (e.g., Concierge an agentic AI workflow tool, Prism a Mercer knowledge fabric for scheme data, and similar initiatives), from problem framing and design through build, release, and support.

Translate risk advisory / consulting needs into clear technical requirements, user stories, and solution designs; partner with stakeholders through UAT and rollout.

Own the backend and integration approach (APIs, data flows, security, RBAC), and ensure solutions are scalable, maintainable, and well documented

Provide technical leadership for a distributed team (London + India): sprint planning input, code reviews, mentoring, and raising engineering standards.

Drive quality and operational readiness: testing strategy, CI/CD, release notes, production deployment governance, and incident/root-cause management.

Identify and deliver pragmatic AI/ML opportunities where valuable (e.g., agentic workflows, RAG/LLM-enabled capabilities) with appropriate governance and human-in-the-loop controls.