Principal Product Data Scientist in London

Principal Product Data Scientist in London

London Full-Time 70000 - 90000 Β£ / year (est.) No working from home possible
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At a Glance

  • Tasks: Drive data-driven decisions and lead high-impact initiatives in product strategy.
  • Company: Join a leading company at Heathrow Airport with a hybrid work model.
  • Benefits: Competitive salary, flexible working, and opportunities for professional growth.
  • Other info: Mentor fellow data scientists and influence company-wide analytics standards.
  • Why this job: Shape the future of products using advanced analytics and machine learning.
  • Qualifications: 8+ years in Data Science with strong skills in Python and SQL.

The predicted salary is between 70000 - 90000 Β£ per year.

  • Principal Product Data Scientist
  • Contract Length : 12 Months
  • IR35 Status : Insid3

About the Role

We are looking for a Principal Product Data Scienti st to drive the next generation of data-driven decision making across our products, platforms and customer experiences.

This role combines advanced analytics, experimentation, machine learning, optimisation, and strategic leadership to solve complex business problems at scale.

As a Principal Data Scientist, you will shape product strategy, influence executive decision-making, and lead high-impact initiatives from ideation through deployment.

You will partner closely with Product, Engineering, Design, Research and Business stakeholders to unlock customer value and improve operational outcomes.

What You'll Do

  • Define and lead the long-term data science strategy for critical product areas.
  • Partner with Product leaders to influence roadmap prioritisation through data and experimentation.
  • Design and execute advanced analytical frameworks to measure customer behaviour, product performance and business impact.
  • Lead complex experimentation programs, including A/B testing, causal inference, uplift modelling and quasi-experimental methods.
  • Develop machine learning, optimisation and decision science solutions that improve customer experience and operational efficiency.
  • Translate ambiguous business challenges into structured analytical problems and actionable recommendations.
  • Communicate insights and recommendations to senior executives and leadership teams.
  • Establish best practices for scientific rigor, experimentation, measurement and model governance.
  • Mentor and develop other data scientists across the organisation.
  • Influence company-wide analytics and product science standards.
  • Preferred Experience
  • 8+ years of experience in Data Science, Product Analytics, Decision Science, Operations Research, Applied Science or related fields.
  • Demonstrated success influencing product strategy through data.
  • Strong experience with experimentation, causal inference and measurement frameworks.
  • Experience developing machine learning models in production environments.
  • Experience with optimisation, decision science, forecasting, recommendation systems or machine learning at scale.
  • Proven track record delivering measurable business impact.
  • Experience leading cross-functional initiatives involving Product, Engineering and senior stakeholders.
  • Previous experience operating at Staff, Principal or equivalent level.
  • Technical Skills
  • Expert-level Python and SQL
  • Experimentation and statistical inference
  • Machine Learning and Predictive Modelling
  • Causal Inference
  • Optimization / Operations Research (preferred)
  • Large-scale data processing
  • BI and visualization tools
  • Cloud-based analytics environments
  • Nice to Have
  • Airline, transportation, logistics, marketplace, e-commerce or technology experience.
  • Experience with mathematical programming (Gurobi, CPLEX, OR-Tools).
  • Experience with network optimisation, routing, scheduling, pricing or revenue management.
  • Advanced degree (MSc or Ph D) in Data Science, Statistics, Mathematics, Computer Science, Operations Research,

Principal Product Data Scientist in London employer: Lorien

Join a forward-thinking company in Manchester that values technical expertise and offers a dynamic work culture. With a focus on hybrid working, flexible hours, and a strong emphasis on employee growth, this role provides the opportunity to lead impactful projects while maintaining a hands-on engineering position. Enjoy a competitive salary, annual bonus, and the chance to shape the future of corporate infrastructure services in a supportive environment.

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Contact Details:

Lorien Recruitment Team

We think you need these skills to ace Principal Product Data Scientist in London

Advanced Analytics
Experimentation
Machine Learning
Optimisation
Strategic Leadership
Data Science Strategy
A/B Testing