Senior Data Analyst - Anti-Fraud & Quality Intelligence

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.

Job Details

Kantar is seeking a highly motivated and experienced Senior Data Analyst to join our global team. This role is central to enhancing the quality and consistency of our 50+ survey panels across 40+ countries. These panels consist of opted-in, fully consented consumers who provide valuable insights through online surveys. Your mission: to assess and report on panellist quality, detect fraudulent activity, and ensure the integrity of our data.

Incentivised surveys have become a target for online fraud, with sophisticated attacks evolving rapidly. At Kantar, we are committed to staying ahead of these threats by investing in advanced analytics and fraud detection capabilities. You’ll play a key role in protecting our data quality and delivering trusted insights to clients worldwide.

This is a high-impact role with the opportunity to collaborate directly with Operational, Commercial, and Data Science leaders. You’ll work alongside a talented team of analysts, scientists, engineers, and developers in a mission-critical environment.

What You’ll Do

• Analyse panellist behaviour and survey data to assess quality and detect fraud.
• Contribute to the full data science lifecycle: from hypothesis generation to production-ready analytics.
• Identify patterns and trends across markets, time, and customer segments.
• Prototype new ideas and develop statistical models to improve decision-making.
• Collaborate with developers to implement scalable, production-ready analytics solutions.
• Improve monitoring and measurement of fraud detection systems.
• Communicate insights clearly to technical and non-technical stakeholders.
• Work with cross-functional teams to drive better data quality and commercial outcomes.

​What You’ll Bring

• 5+ years of experience in analytics, data mining, and reporting.
• Hands-on experience in fraud detection, anomaly detection, or similar quality-focused domains.
• Strong proficiency in Python, SQL, and statistical techniques.
• Experience with cloud platforms (AWS, Redshift, Azure).
• Familiarity with intermediate-level statistics (e.g., KNN, K-means, Bayesian logic).
• Proven ability to present insights using PowerBI and Excel.
• Strong problem-solving skills and a collaborative mindset.
• Experience in industries with large consumer marketplaces (e.g., programmatic media, travel, financial services) is a plus.

Our Tech Stack

• AWS
• Redshift
• Postgres
• DBT
• Grafana
• PowerBI

​Note: While our current environment is AWS, we are transitioning to Azure for new development.

Why Join Us?

At Kantar, you’ll be part of a global leader in data, insights, and consulting. You’ll work on meaningful challenges, contribute to cutting-edge solutions, and help shape the future of market research. We offer a collaborative environment, opportunities for growth, and the chance to make a real impact.

Additional Information

Candidates must have the right to work in the UK.
We value diversity and encourage applicants from all backgrounds to apply.

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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.