Mercer UK is seeking a Senior Full Stack Software Developer to join the AI Product team in DC Pensions. This UK-based role offers flexible working with hybrid or office-based arrangements. You will lead the engineering development and maintenance of the AI Agent technology stack across the backend (Python), frontend (React/Next.js), and deployment (OSS2/Kubernetes). You will also work on AI Agent plumbing and resilience, collaborating with the lead Data Science / AI engineer and Head of AI Product. You will design, code, test, and ensure software quality across the application lifecycle, addressing user needs, performance, and security. You will contribute to documentation and act as a liaison with IT and Marsh Tech teams. You will diagnose issues, implement improvements, and participate in ad hoc AI initiatives across the organization. Location options include London or Manchester, United Kingdom.

Mercer UK is seeking a Senior Full Stack Software Developer to join the AI Product team in DC Pensions. This UK-based role offers flexible working with hybrid or office-based arrangements. You will lead the engineering development and maintenance of the AI Agent technology stack across the backend (Python), frontend (React/Next.js), and deployment (OSS2/Kubernetes). You will also work on AI Agent plumbing and resilience, collaborating with the lead Data Science / AI engineer and Head of AI Product. You will design, code, test, and ensure software quality across the application lifecycle, addressing user needs, performance, and security. You will contribute to documentation and act as a liaison with IT and Marsh Tech teams. You will diagnose issues, implement improvements, and participate in ad hoc AI initiatives across the organization. Location options include London or Manchester, United Kingdom.