Senior Data Scientist

At Vitality, data scientists and AI Engineers develop and deploy innovative AI applications spanning the entire value chain of our business. The Data Science function is recognised as a core driver of strategic value within the business, with a high-profile and strong support allowing the team to confidently take on and deliver transformational projects. We are seeking highly skilled AI Engineers to join our growing team. You will design, develop, and deploy AI-driven applications leveraging both traditional machine learning and LLM based applications. The role involves building internal and external AI solutions such as Retrieval-Augmented Generation (RAG) systems, chatbots, and voice-based customer service platforms, all deployed on Google Cloud Platform (GCP). You will work closely with data scientists, software engineers, and product teams to deliver robust, scalable, and production-ready AI solutions.

Key Actions

• Work with the business to gather business requirements for new AI applications
• Design and implement AI applications
• Deploy AI applications into production environments on a Google Cloud Platform
• Collaborate with cross-functional teams to integrate AI applications with Enterprise systems
• Optimize models for performance, scalability, and cost-efficiency
• Stay current with advancements in LLM frameworks, agentic SDKs, and cloud-native AI deployment

Do you have experience in Software deployment?, Do you have a Master’s degree?, * Proven machine learning expertise

• Strong MLOps and deployment capability
• Demonstrated stakeholder and influence skills, * Demonstrable experience of working with the business to create a detailed set of project requirements
• Strong foundation in traditional machine learning (classification, regression, etc.)
• Hands-on experience with LLM-based applications
• Experience building RAG systems and agentic workflows that leverage external tools.
• Familiarity with agentic SDKs (ADK, LangChain, LlamaIndex, etc.)
• Proven track record of deploying AI applications into production environments
• Strong understanding of API development, microservices, and containerization (Docker, Kubernetes)
• Knowledge of MLOps best practices
• Excellent problem-solving skills and ability to work in a fast-paced environment

Working Pattern - Hybrid - 2 days per week in the Vitality London Office. Full time, 37.5 hours per week. We are happy to discuss flexible working!, * A pension of up to 12%- We will match your contributions up to 6% of your salary

• Our award-winning Vitality health insurance - With its own set of rewards and benefits
• Life Assurance - Four times annual salary

These are just some of the many perks that we offer! To view the extensive range of benefits we offer, please visit our careers page. Fantastic Benefits. Exciting rewards. Great career opportunities! If you are successful in your application and join us at Vitality, this is our promise to you, we will:

• Help you to be the healthiest you’ve ever been
• Create an environment that embraces you as you are and enables you to be your best self
• Give you flexibility on how, where and when you work
• Help you advance your career by playing you to your strengths
• Give you a voice to help our business grow and make Vitality a great place to be
• Give you the space to try, fail and learn
• Provide a healthy balance of challenge and support
• Recognise and reward you with a competitive salary and amazing benefits
• Be there for you when you need us
• Provide opportunities for you to be a force for good in society

We commit to all these things because we want you to feel that you belong, and are supported to be happy and healthy.

We’re incredibly proud to be recognised for the culture we’ve created - recently being named one of Glassdoor’s Best Places to Work 2026, and in 2024 we were delighted to be awarded Top 10 Places to Work in the Sunday Times Awards. Vitality is a multi-award-winning UK insurance brand, here to make the world a healthier, happier place.

We’ve been a purpose and values-driven business from day 1- long before it became fashionable. Our core purpose is to make people healthier and enhance protect their lives. Vitality pioneered shared-value insurance. We incentivise people to live healthier longer lives - they benefit, our business benefits, and society benefits. We’re successful because we attract, develop, and retain the best people - and because we care.

Plus, you get to join our 1.7+ million members with access to our unique health insurance and healthy living programme. Just to make sure you know our products inside and out.

Ready to find out if we’re the right fit for you? We can’t wait. Diversity & Inclusion

At Vitality, we’re committed to diversity and inclusion because it’s good for our employees, for our business, and for society. We welcome applications from individuals of all backgrounds, experiences, and perspectives.