Senior Data Scientist

Kantar
London
We're the world's leading data, insights, and consulting company; we shape the brands of tomorrow by better understanding people everywhere.

Kantar's Profiles division is home to the world's largest audience network.

With access to 170m+ people in over 100 global markets, we offer unrivalled global reach with local relevancy. Validated by industry leading anti-fraud technology, Kantar's Profiles Audience Network delivers the most meaningful data with consistency, accuracy, and accountability - all at speed and scale.

Why this job is important

At Kantar, we're known for our data. Help us turn complex information into actionable insights that shape the brands of tomorrow. As a Senior Data Scientist, you'll play a pivotal role in driving data-driven decision-making and influencing key business outcomes. Your expertise will help us better understand people everywhere and deliver real impact for our clients and our business.

What you'll be doing
  • Designing and implementing advanced machine learning models to solve real business challenges.
  • Analysing large datasets to uncover patterns, trends, and insights that drive strategic decisions.
  • Collaborating with cross-functional teams to integrate analytics solutions into business operations.
  • Optimising the performance of existing models and addressing weaknesses through detailed analysis.
  • Communicating technical findings to stakeholders through clear reports and visualisations.
The ideal skills & experience
  • Strong Python skills, with experience using Git for version control.
  • Strong SQL skills and familiarity with databases such as Redshift, Postgres, or Microsoft SQL Server.
  • Solid understanding of machine learning algorithms and applications, including regression, clustering, decision trees, neural networks, and exposure to generative AI or large language models.
  • Hands-on experience with cloud platforms like AWS or Azure.
  • Ability to communicate complex technical concepts in a clear, accessible way.
What's in it for you
  • Flexible hybrid working
  • 25 days leave, 2 days paid for volunteering and life event leave
  • Competitive salary and bonus (bonus dependent on role)
  • Company pension
  • Enhanced parental leave
  • Healthcare options
  • Wide range of flexible benefits
We're not able to offer visa sponsorship or help with relocation support for this role. Please make sure you've got the right to work in the country where this role is located before applying.

Country

United Kingdom

Why join Kantar?

We shape the brands of tomorrow by better understanding people everywhere. By understanding people, we can understand what drives their decisions, actions, and aspirations on a global scale. And by amplifying our in-depth expertise of human understanding alongside ground-breaking technology, we can help brands find concrete insights that will help them succeed in our fast-paced, ever shifting world.

And because we know people, we like to make sure our own people are being looked after as well. Equality of opportunity for everyone is our highest priority and we support our colleagues to work in a way that supports their health and wellbeing. While we encourage teams to spend part of their working week in the office, we understand no one size fits all; our approach is flexible to ensure everybody feels included, accepted, and that we can win together. We're dedicated to creating an inclusive culture and value the diversity of our people, clients, suppliers and communities, and we encourage applications from all backgrounds and sections of society. Even if you feel like you're not an exact match, we'd love to receive your application and talk to you about this job or others at Kantar.
Posted 2025-10-15

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