Senior Data Scientist

About The Role Team – Data Science 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! Top 3 skills needed for this role:

• Deep Expertise in Machine Learning, Data Science & Technical Tooling
• Strategic Project Leadership & Business Impact Delivery
• High Level Stakeholder Engagement & Communication

What this role is all about: Vitality is entering a new era powered by Vitality AI. This is where intelligence, data, and personalisation come together to redefine how we help our members live healthier, happier, longer lives. As a Senior Data Scientist, you will play a pivotal role in designing, building, and executing advanced machine learning and AI solutions that sit at the heart of Vitality’s transformation. Your work will help shape the next generation of personalised health insurance and wellness experiences. You will be instrumental in embedding AI safely, responsibly, and at scale across the organisation.Key Actions

• Lead advanced AI and machine-learning development, delivering the full model lifecycle and building scalable, explainable, production-ready solutions
• Develop cutting-edge models including recommender systems, generative AI, reinforcement learning and other advanced techniques, ensuring high ethical and governance standards
• Drive innovation and shape the Vitality AI roadmap by identifying high-value opportunities, rapidly prototyping ideas, and contributing to reusable frameworks and tooling
• Own end-to-end delivery of high-impact, strategic AI projects, translating complex business needs into measurable solutions and managing multiple workstreams effectively
• Engage and influence stakeholders across the business, clearly communicating insights and building strong relationships to support AI adoption
• Mentor and develop data scientists, steering knowledge-sharing, capability-building and fostering a culture of excellence and continuous improvement
• Champion responsible AI, governance and risk management, identifying risks early and ensuring all models meet safety, regulatory and ethical requirements
• Collaborate with engineering teams to scale AI platforms and infrastructure. Deploying models using modern ML practices and contributing to shared tools such as feature stores, pipelines, and monitoring systems

What do you need to thrive?

• Undergraduate degree in statistical subject
• Considerable experience accessing and analysing data using SQL and Python
• Significant experience using commonly used regression and classification algorithms
• Experience (5+ yrs) working as a data scientist
• Expert in the process of building and implementing machine learning models to solve business problems
• Taken a lead role in the management of data science projects
• Communicates effectively to technical and non-technical audiences at all levels of the organisation
• Demonstrable experience of working with the business to identify new projects

So, what’s in it for you?

• Bonus Schemes – A bonus that regularly rewards you for your performance
• 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, w e 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.About The CompanyWe’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.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.If we are fortunate in receiving a high volume of quality applications we may need to close this vacancy early. If you are interested, please submit your application as soon as possible.