Impress employers and recruiters.
Choose from hundreds of resume examples.

Impress employers and recruiters.
Choose from hundreds of resume examples.

Target Resume Now

About the Role

Lead the engineering development and maintenance of AI technology, focusing on the Pensions AI Assistant. This role involves full-stack development, ensuring AI agent quality and trust for a customer-facing product within a collaborative, innovative team.

Responsibilities

• Lead full-stack development and maintenance of the AI Assistant tech stack across backend (Python), front end (React/Next.js), and deployment (OSS2/Kubernetes).
• Take responsibility for design, coding, testing, and software quality across the application life cycle, ensuring user needs, performance requirements, and security standards are met.
• Improve AI agent reliability, trust, and safety, helping ensure the Assistant is dependable for customers.
• Participate in technical design and peer review, review code, and contribute to strong engineering practices across the team.
• Create and maintain documentation as part of solution delivery.
• Serve as a point of contact with the wider IT and Marsh Tech teams as needed.
• Diagnose issues, resolve problems, and recommend improvements and enhancements to the product.
• Support AI change across the DC organization on small, ad hoc projects, helping the business use and deploy AI for process efficiencies and better client outcomes.

Requirements

• Proven experience as a senior full-stack developer delivering production software, able to work independently and take ownership end to end.
• Strong backend engineering skills in Python (services and API design).
• Solid front-end experience with React and TypeScript.
• Hands-on experience deploying and running applications on Kubernetes.
• A track record of building and maintaining reliable, high-quality software, with a genuine interest in the quality, trust and resilience of customer-facing systems.
• The ability to collaborate closely within a small, hands-on team while also being a self-starter who can drive work forward independently.

Skills

• Python
• React
• Next.js
• Kubernetes
• TypeScript
• AI / LLM-enabled products
• Agentic workflows
• RAG
• Prompt engineering
• Evaluation and governance patterns
• Modern web tooling
• Document / NoSQL stores (e.g. MongoDB)
• Data pipelines
• Deployment
• Docker
• Logging
• Configuration
• UK pensions domain

Location

• UK-based
• DC Pensions

Work Type

• Hybrid
• Office-based
• Flexible working

Experience Level

• Senior full-stack developer

Benefits

• Professional development opportunities
• Interesting work
• Supportive leaders
• Vibrant and inclusive culture
• Talented colleagues
• New solutions creation
• Impact for colleagues, clients and communities
• Range of career opportunities
• Benefits and rewards to enhance well-being

About the Company

• Mercer is a business of Marsh (NYSE: MRSH), 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 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective.
• For more information about Mercer, visit mercer.com, or follow us on LinkedIn and X.

Equal Opportunity

• 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 color, or any other characteristic protected by applicable law.
• We are an equal opportunities employer.
• We are committed to providing reasonable adjustments in accordance with applicable law to any candidate with a disability to allow them to fully participate in the recruitment process.
• If you have a disability that may require reasonable adjustments, please contact us at reasonableaccommodations@marsh.com.
• Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office.
• All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week.
• Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.