Machine Learning Engineer (Generative AI, RAG & Conversational Systems)

Machine Learning Engineer (Generative AI, RAG & Conversational Systems)

Design, develop, and implement machine learning pipelines and GenAI‑powered search and conversational chatbot solutions for scalable mobile and TV applications at Sky and Comcast.

What you’ll do

• Design, develop, and optimise GenAI‑powered search and conversational chatbot experiences that integrate seamlessly into scalable mobile and TV applications used by end users.
• Build retrieval‑augmented generation (RAG) pipelines combining LLMs with structured and unstructured data.
• Optimise relevance, latency, and response quality for interactive UI components.
• Evaluate and improve models using real‑world feedback, analytics and experimentation.
• Collaborate closely with frontend, product, and UX teams to embed AI components into user‑facing applications.
• Contribute to system architecture, model selection, and deployment strategies.
• Participate in Scrum / agile process.

What you’ll bring

• Experience with traditional ML systems and GenAI (LLMs, agent frameworks), including proven delivery of GenAI‑powered search or chatbot solutions in production.
• Solid understanding of vector databases and semantic search.
• Solid understanding of retrieval‑augmented generation (RAG).
• Robust programming expertise, primarily in Python, delivering ML and GenAI solutions with a language‑agnostic mindset.
• Hands‑on use of serverless cloud services (e.g. AWS Lambda best practices).
• Strong team player and communicator with experience in agile, fast‑paced environments.

Desirable skills and experience

• Extensive machine learning research background.

Benefits and perks

• Free SkyTV or NOW package, including Sky Sports and Sky Cinema.
• Pension package with up to 9% employer contribution.
• Private healthcare with mental health support.
• Aviva Digital GP and dental insurance.
• Discounts on Sky products, including Sky Mobile, Sky Broadband, Sky Glass and Sky Protect.
• Sharesave and tech schemes.
• A range of Sky VIP rewards and experiences.

We’re an equal opportunity employer and value diversity at our company. We are a Disability Confident Accredited Employer and welcome and encourage applications from all candidates. We will look to ensure a fair and consistent experience for all and will make reasonable adjustments to support you where appropriate.

Just so you know: if your application is successful, we’ll ask you to complete a criminal record check. And depending on the role you have applied for and the nature of any convictions you may have, we might have to withdraw the offer.