Lead Software Engineer, Team Lead

Overview

As Tech Lead in Mercer’s CAT team in London, you own technical direction for a UK-based squad and collaborate with an India engineering pod. You will drive end-to-end delivery of analytics and technology products, translating stakeholder needs into robust designs and scalable solutions. You’ll lead architecture, security, and integration choices while mentoring engineers across time zones, with a focus on practical AI/ML opportunities and governance.

Pay / Benefits

• professional development opportunities
• supportive leaders
• inclusive culture
• career opportunities and rewards
• hybrid work arrangements
• well-being benefits

Responsibilities

• Lead end-to-end delivery of CAT products from framing through release and support
• Translate risk advisory needs into technical requirements and designs, guiding UAT and rollout
• Own backend and integration approach (APIs, data flows, security, RBAC) ensuring scalability and maintainability
• Provide technical leadership for a distributed team (London + India): sprint planning, code reviews, mentoring
• Drive quality and operational readiness: testing, CI/CD, release notes, production governance, incident analysis
• Identify and deliver pragmatic AI/ML opportunities with governance and human-in-the-loop controls

Key requirements

• Experience managing a team (leading a 5-person team) and hands-on coding
• Proven track record as Tech Lead / Lead Engineer delivering production software
• Strong backend engineering skills (API design, data modelling, performance)
• Experience working with business stakeholders in a financial firm and communicating tradeoffs
• Ability to lead delivery with an agile team across time zones

• stakeholder communication
• mentoring
• team coordination
• Python-based services (FastAPI)
• Next.js/React.js
• APIs and data modelling

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