Senior Data Scientist

Job description

Senior Data Scientist – Personalisation

London – Hybrid

Up to £65,000

About the Role

We’re working with a growing fintech organisation that’s redefining how people save and invest. Their mission is to make financial wellbeing simple, transparent, and accessible - helping customers feel confident about their money through technology, insight, and great user experience.

As a Senior Data Scientist, you’ll focus on customer analytics and applied data science - using data to understand behaviour, identify opportunities, and guide strategic decisions across marketing, product, and personalising customer experience.

Key Responsibilities

• Translate business challenges into analytical questions and deliver data-led insights that drive customer growth and retention.
• Analyse customer behaviour, lifecycle patterns, and engagement to uncover opportunities for product and marketing optimisation.
• Develop and maintain advanced analytical models to forecast customer outcomes and measure impact.
• Present clear, data-driven recommendations to senior stakeholders, influencing strategy and decision-making.
• Work closely with Data Engineering and BI teams to ensure data quality, accessibility, and scalability across the organisation.

What We’re Looking For

• Strong analytical foundation with experience applying statistics and data science in a commercial setting.
• Proven track record in customer or marketing analytics - understanding acquisition, engagement, churn, and lifetime value.
• Proficiency in Python (Pandas, NumPy, Scikit-learn, Statsmodels) for data wrangling, analysis, and modelling.
• Ability to communicate complex findings in a clear, business-relevant way.
• Experience working collaboratively in agile, cross-functional teams.

Please note: Unfortunately this role cannot offer sponsorship.

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full-time jobs

Published at

12-01-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English