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Principle Data Scientist

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Contract Principal Data Scientist (Senior Data Scientist) The Opportunity We’re looking for a Principal Data Scientist (Senior Data Scientist level) to lead the development of advanced analytics, AI models, and data-driven solutions that deliver real organisational impact.

This role sits at the intersection of data science, AI, and business strategy, combining technical expertise with leadership to shape high-value initiatives and unlock insights from complex data.


What You’ll Be Doing

  • Build strong relationships with stakeholders to identify opportunities where data science and AI can deliver value
  • Design, develop and deploy advanced analytics, machine learning models, and data products
  • Lead and contribute to high-impact data science projects across the organisation
  • Translate complex analysis into clear, actionable insights and recommendations
  • Work closely with data engineers to ensure robust, scalable data pipelines and solutions
  • Provide technical leadership, setting standards and coaching other data scientists
  • Drive innovation and champion the use of AI and advanced analytics
  • Contribute to best practice in data science, governance, and ethical use of data

🛠️ Tech & Tools

You’ll typically work with:

  • Python and advanced statistical tools
  • Machine Learning and AI frameworks
  • Cloud-based data platforms (e.g. Azure ecosystems)
  • Data visualisation and reporting tools
  • Data engineering and transformation pipelines

What We’re Looking For

Essential:

  • Extensive experience designing and delivering data science and AI solutions in real-world environments
  • Strong expertise in statistical analysis, machine learning, and advanced analytics techniques
  • Proven ability to write and optimise complex code
  • Experience working closely with data engineers and multidisciplinary teams
  • Demonstrable contribution to building data science capability and best practice
  • Ability to communicate complex findings clearly to both technical and non-technical audiences

Desirable:

  • Experience working in agile, iterative delivery environments
  • Understanding of user research and user needs in product development

💡 What Makes This Role Stand Out

  • Opportunity to lead and shape AI and data science strategy
  • Combination of hands-on delivery and technical leadership
  • Focus on delivering real-world impact through data
  • Work across a variety of complex, high-value problem spaces

Key Skills

  • Advanced statistical analysis and modelling
  • Data engineering collaboration and data lifecycle understanding
  • Storytelling with data and visualisation
  • Data ethics, privacy, and governance awareness
  • Stakeholder engagement and influencing
  • Product thinking and delivery

What You’ll Deliver

  • High-quality AI models and analytical solutions
  • Insightful dashboards, reports, and visualisations
  • Scalable and reusable data science products
  • Established standards, practices, and capability improvements
  • Thought leadership in data science and AI innovation

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Contract Type: Temporary Interim Management

Specialism: Technology & Digital

Focus: Software Development/Engineering

Industry: IT

Salary: Negotiable

Workplace Type: Hybrid

Experience Level: Mid Management

Location: Cardiff

Job Reference: 13AEZO-5FEBFBEA

Date posted: 18 June 2026

Consultant: Tina Sollom