Senior AI/ML Engineer – LLM & RAG Pipeline Development

About the role

We are looking for a Senior AI/ML Engineer to design, build and deploy large‑language‑model (LLM) applications and Retrieval‑Augmented‑Generation (RAG) pipelines in a production environment. The role sits between advanced AI research and production‑grade software engineering, helping to embed AI capabilities into an established product suite.

Key responsibilities

• Design and implement end‑to‑end LLM‑based solutions, from prototype to scalable deployment.
• Develop and maintain RAG pipelines that combine structured, unstructured and streaming data.
• Integrate models with existing services using containerisation and CI/CD practices.
• Collaborate with product and engineering teams to ensure AI features meet performance and reliability standards.
• Contribute to AI best‑practice guidelines within the R&D department.

Required profile

• Master’s or PhD in a STEM or Computing discipline.
• 3+ years of hands‑on experience designing, building and deploying LLMs.
• Proven ability to work full‑time onsite in Guildford.
• Strong problem‑solving skills and experience delivering AI solutions at scale.

Required skills

• Python programming.
• Deep learning frameworks such as PyTorch or TensorFlow.
• LLM libraries (e.g., Hugging Face Transformers).
• Retrieval‑Augmented‑Generation pipeline development.
• Containerisation with Docker and orchestration with Kubernetes.
• CI/CD pipelines and version control (Git).
• Cloud platforms (AWS, GCP or Azure).
• SQL and basic data‑engineering concepts.

What we offer

• Salary £85,000‑£125,000 per year.
• 25% performance bonus.
• 10% pension contribution.
• Private medical insurance.
• Opportunities for leadership progression as the team expands.