Senior Generative AI Engineer - Production LLMs & RAG

Harnham; Greater London; Hybrid; GBP 80,000 - 95,000; Full time

Job summary

Harnham is expanding its AI delivery capability in the UK and seeks a Senior AI Engineer to design, build and productionise LLM-powered applications with end-to-end ownership. You will collaborate with engineering, data science, security and business teams on multiple enterprise use cases, including RAG-enabled assistants and AI-driven workflows.

You will join a fast-paced environment with autonomy across active AI initiatives, contributing to secure and scalable AI delivery within a regulated

Qualifications

• Senior AI Engineer with end-to-end ownership across AI initiatives.
• Experience building LLM-powered applications and productionising AI solutions.
• Ability to work with security and data protection teams.

Responsibilities

• Design, build and productionise LLM and Generative AI applications.
• Develop solutions using RAG, conversational AI and AI-driven workflows.
• Own technical delivery from architecture through to production deployment.
• Integrate AI applications with enterprise systems and data sources.
• Make architectural recommendations and evaluate build-vs-buy decisions.
• Partner with InfoSec and Data Protection teams on secure AI delivery.
• Communicate technical decisions and trade-offs across engineering and business teams.

Job description

Harnham is expanding its AI delivery capability in the UK and seeks a Senior AI Engineer to design, build and productionise LLM-powered applications with end-to-end ownership. You will collaborate with engineering, data science, security and business teams on multiple enterprise use cases, including RAG-enabled assistants and AI-driven workflows.

You will join a fast-paced environment with autonomy across active AI initiatives, contributing to secure and scalable AI delivery within a regulated