Principal Data Scientist -- Lead End-to-End ML & Mentorship

£100k Base + Bonus and a chance to lead a project in a skilled and growing team

An exciting opportunity to work for a leading company with a significant presence globally as part of a growing London-based Data Science team. The company is known for their specialization in complex fields and they have built a reputation for using data science and analytics to improve not only their core business functions but also decision‑making across the whole organisation.

You will be an integral part of a skilled technical team with a focus on leveraging data science to support a wide range of business functions. As a Principal Data Scientist, you will be responsible for leading the end‑to‑end delivery of their most complex and impactful data science processes as well as being a driver in defining and upholding the business’ technical standards. Alongside the leadership of projects, you will also act as a mentor and coach for the growing team of junior and mid‑level data scientists, helping them to elevate the overall capability of the team around you.

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• 8+ years of expertise in the fields of data science and machine learning
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• Expert‑level Python programming with a focus on implementing diverse statistical and ML techniques
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• Deep theoretical foundation in statistics, experimental design, and advanced modelling
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• Proven track record of deploying end‑to‑end data science solutions into production
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• Leadership and mentorship capabilities to elevate team performance and technical quality
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• High‑level communication skills for effective stakeholder engagement and collaboration
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• Cloud and modern tooling experience (e.g., AWS, Azure, GCP) is highly regarded
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• Industry experience in finance or insurance is a plus, but not a requirement
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