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

We don’t just believe in better. We make it happen.   

Better content. Better products. And better careers.   

Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, Sky Stream to Sky Glass, we never stand still. We optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do it all right here at Sky.  

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. 

Team overview 
 

Global Product 

We’re the Global Product. We’re the team behind your favourite Sky products, and the platforms that power them. We make every moment magical, everywhere. Our team is made up of self-motivated, big thinkers who have a knack for solving problems and find new ways to captivate millions of customers by putting them at the heart of everything we do. From Sky Glass, Sky Q, Peacock and NOW to news and sports apps, we make entertainment even better, and we can’t wait to get started on what’s next. 

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 

• Collaborates closely with frontend, product, and UX teams to embed AI components into user-facing applications 

• Contributes to system architecture, model selection, and deployment strategies 

• Participates in Scrum / agile process 

What you'll bring 
 

Essential criteria:    

• 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: 

• Large Language Models (LLMs) 

• Vector databases and semantic search 

• 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   

There's one thing people can't stop talking about when it comes to life at Sky: the perks. Here’s a taster:    

• Free Sky TV 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   

How you’ll work   

We've adopted a hybrid working approach to give more flexibility on where and how we work. The hybrid working expectations for this role are  2  days in the office per week.   

Your office base    

Osterley

Our Sky Group HQ. Equipped with state-of-the-art technology and workspaces, there’s plenty of space to see your big ideas come to life. Here you’ll find 13 subsidised restaurants and cafes. You can re-energise at our gym, catch the latest films at our cinema, get your car washed and even get pampered at our beauty salon.  

Our Osterley Campus is just a 10-minute walk from Syon Lane train station, or you can get one of our free shuttle buses from Osterley, Gunnersbury and Ealing Broadway stations. Plus, there’s free onsite parking available for cars, motorbikes and bicycles.    
 

Who we are   

We’re Sky, a leading media and entertainment company who connect millions with entertainment, sports, news and arts through innovative products and services. Working with us means you’ll be bringing the joy of a better experience to more people, every day. All so we can do better and deliver better for our customers, colleagues and society.  

We’re an equal opportunity employer and value diversity at our company. We're 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. Please flag any adjustments you need as early as you can.   
 

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.    

To find out more about working with us, search #LifeAtSky on social media.