Senior Data Scientist

Company: Harnham
Apply for the Senior Data Scientist
Location: London
Job Description:

Are you looking to take the next step in your Data Science career within the insurance sector? This is an opportunity to join a highly data-driven insurance business where machine learning and advanced analytics are central to decision-making across underwriting, claims, pricing and customer strategy.

The Company

They are an established insurance company that continues to invest heavily in its Data & Analytics capability. Data Science plays a key role in driving commercial performance, improving customer outcomes and supporting strategic decision-making across the organisation. With a collaborative culture and strong leadership support for analytics, this is an environment where Data Scientists can make a visible impact.

The Role

As a Senior Data Scientist, you will lead the delivery of high-value analytics and machine learning projects, working closely with stakeholders across the business.

Responsibilities include:

  • Developing and deploying predictive models to support underwriting, claims, pricing and customer-focused initiatives
  • Applying machine learning and statistical techniques to solve complex business challenges
  • Leading end-to-end Data Science projects from problem definition through to deployment and monitoring
  • Partnering with business stakeholders to identify opportunities for data-driven decision-making
  • Presenting insights and recommendations to both technical and non-technical audiences
  • Supporting best practice across modelling, experimentation and model governance
  • Mentoring junior team members and contributing to the growth of the wider Data Science function

Your Skills & Experience

  • Strong commercial Data Science experience within insurance or broader financial services is essential
  • Experience building predictive models and machine learning solutions that deliver measurable business value
  • Advanced Python skills for machine learning, statistical modelling and data analysis
  • Strong SQL skills and experience working with large and complex datasets
  • Understanding of insurance domains such as pricing, claims, underwriting, fraud, risk or customer analytics
  • Experience engaging with stakeholders and translating business challenges into analytical solutions
  • Exposure to cloud-based data environments and deploying models into production is beneficial
  • Previous experience mentoring colleagues or leading projects would be advantageous, but applicants do not need to have held a Senior Data Scientist title previously

What They Offer

  • £75,000 – £85,000 base salary depending on experience
  • Performance-related bonus
  • Competitive pension and benefits package
  • Flexible hybrid working arrangement
  • Ongoing learning and development opportunities
  • Clear career progression within a growing Data & Analytics function
  • The opportunity to work on business-critical Data Science initiatives with significant organisational visibility

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Posted: September 21st, 2026