Senior Data Scientist

Role: Senior Data Scientist

Location: Cannon Street, Central London (3-Days a week)

Salary: £90,000 - £110,000

Our client, a global leader in payment services, is seeking a Senior Data Scientist to drive high-impact analytical and ML initiatives. You'll work at the centre of their data strategy, shaping solutions that directly influence fraud, risk and customer experience. This is a hands-on role where your models will be deployed, scaled and used daily across a major financial ecosystem.

What you'll work on

• Identifying high-value Data Science and Machine Learning opportunities across payments, fraud, risk and customer domains
• Scoping problems, designing experiments and building models end-to-end with engineering and product teams
• Leading technical workstreams and guiding junior scientists to ensure high-quality delivery
• Deploying models into production environments and monitoring performance to drive measurable business impact
• Presenting insights and recommendations to senior stakeholders in clear, actionable terms

What you bring

• Strong background in Data Science, Machine Learning or advanced analytics with proven end-to-end delivery
• Ability to shape ambiguous problems, define analytical approaches and own delivery through to impact
• Confident stakeholder engagement skills, including workshops, influencing decisions and simplifying complexity
• Hands-on experience with Python, cloud platforms, modern ML tooling and production-grade model deployment
• Experience working in fast-paced, data-rich environments such as payments, fintech or financial services

Why join

• Work in a global payments organisation where Data Science is a strategic, well-funded priority
• Build and deploy models that directly influence real-world financial outcomes at scale
• Join a modern, growing data function with strong technical ownership and long-term progression