Principal Data Scientist

Company: Harnham
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Job Description:

Principal Data Scientist

Hybrid – London (3 days a week)

Up to £80,000

We are working with ahousehold fashion brand. They are on the lookout for a Principal Data Scientist to join its growing Data & Analytics team. With a presence across a thriving eCommerce platform, mobile app, and 300+ retail stores, this is your chance to join an exciting team.

As Principal Data Scientist, you’ll lead the data science function, supporting customer understanding, marketing effectiveness, and personalisation. From optimising campaign performance to driving loyalty and segmentation strategies, you’ll help put data at the heart of every customer interaction.

The Role:

  • Lead, mentor, and grow a team of Data Scientists and Analysts focused on customer and marketing use cases.
  • Build and deploy models that support personalisation, customer segmentation, lifetime value prediction, churn prevention, and marketing attribution.
  • Partner closely with CRM, Digital Marketing, and eCommerce teams to deliver data-driven improvements across the customer journey.
  • Leverage advanced analytics to understand customer behaviour and optimise marketing spend and engagement.
  • Ensure data quality and scalable infrastructure for marketing and customer data.
  • Drive innovation by staying ahead of AI/ML trends in retail and customer analytics.

Requirements:

  • 5+ years’ experience in Data Science, with a strong focus on customer or marketing analytics.
  • Proven experience in building predictive models for segmentation, churn, LTV, personalisation, or attribution.
  • Strong technical skills in Python and SQL, with experience deploying production-grade ML solutions.
  • Confidence working with cross-functional stakeholders across marketing, CRM, eCommerce, and digital product.
  • A collaborative mindset and a passion for using data to enhance the customer experience.

If this role looks of interest, please apply directly, or reach out to Joseph Gregory

Posted: April 22nd, 2025