Senior Data Scientist

Senior Data Scientist

London £70,000 to £90,000 plus benefits

This is an exciting opportunity to join a high-growth tech business where data science sits at the heart of product innovation. You will shape new AI-driven capabilities, work with cutting-edge machine learning, and help transform how customers understand and prevent complex digital challenges.

The Company

They are a fast-scaling SaaS organisation operating at the intersection of AI, machine learning, and real-time behavioural data. Their platform processes billions of events daily and solves technically challenging problems in a rapidly evolving domain. With data science embedded into their core product, this team plays a critical role in defining the next generation of their offering.

The Role

• Lead the end-to-end development of new ML and AI capabilities, from rapid prototyping through to production deployment.
• Build MVPs and collaborate closely with Engineering and Product teams to bring ideas to life.
• Apply advanced machine learning and LLM techniques, including RAG, agents and NLP, where they drive meaningful customer and product impact.
• Work with large-scale datasets in cloud environments to deliver robust, scalable systems.
• Contribute to product strategy through strong experimentation, technical insight, and pragmatic decision-making.

Your Skills and Experience

• Strong experience delivering production-grade ML systems end to end.
• Proficiency in Python and SQL, with experience working on cloud-scale datasets.
• Practical experience with LLMs and applied AI, such as RAG, agents, or NLP.
• Experience building customer-facing or product-centric ML systems.
• A product-focused mindset, balancing experimentation with real-world value.

Useful additional experience includes:

• AWS or GCP environments (SageMaker, Bedrock, Lambda, S3, Redshift).
• MLOps practices (monitoring, deployment, optimisation).
• Working with streaming data, transformer models or recommendation systems.

What They Offer

• £70,000 to £90,000 salary.
• Hybrid working with two days onsite.
• 35 days annual leave including bank holidays.
• £500 annual wellbeing budget.
• Up to £1,500 home office setup budget.
• Company pension contribution at 3 percent.

How to Apply

If you are interested in this Senior Data Scientist opportunity, please apply with your CV or email me at