Lead Software Engineer, Team Lead

Company:

Marsh Corporate

Description:

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.

We will count on you to:

• 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.

What you need to have:

• Experience managing a team as this role involves leading a team of 5 as well as contributing hands-on coding work.

• Proven experience as a Tech Lead / Lead Engineer delivering production software including hands-on coding and code review ownership.

• Strong backend engineering skills (API design data modelling performance) and experience building secure role-based applications.

• Experience working directly with business stakeholders in a financial firm with the ability to explain technical tradeoffs clearly.

• Demonstrated ability to lead delivery with an agile team across time zones (e.g. sprint ceremonies prioritization support and team coordination).

What makes you stand out

• Prior experience in UK pensions covenant / advisory / trustee-facing tools and strong ability to connect technical design to covenant outcomes.

• Experience with Python-based services (e.g. FastAPI) and modern web stacks (e.g. in real-world delivery.

• Practical experience delivering GenAI/agentic solutions (prompt engineering RAG governance patterns) in production or controlled enterprise environments.

• Worked with data pipelines / SQL databases / Mongo databases or Document storages.

Why join our team:

• We help you be your best through professional development opportunities interesting work and supportive leaders.

• We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues clients and communities.

• Our scale enables us to provide a range of career opportunities as well as benefits and rewards to enhance your well-being.

Marsh (NYSE: MRSH) is a global leader in risk reinsurance and capital people and investments and management consulting advising clients in 130 countries. With annual revenue of over $27 billion and more than 95000 colleagues Marsh helps build the confidence to thrive through the power of perspective.

For more information visit or follow us on Linked In and X.Marsh is committed to embracing a diverse inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background civil partnership status disability ethnic origin family duties gender orientation or expression gender reassignment marital status nationality parental status personal or social status political affiliation race religion and beliefs sex/gender sexual orientation or expression skin…