Media Administration Senior Lead

dunnhumby is the global leader in Customer Data Science, partnering with the world’s most ambitious retailers and brands to put the customer at the heart of every decision. We combine deep insight, advanced technology, and close collaboration to help our clients grow, innovate, and deliver measurable value for their customers. dunnhumby employs nearly 2,500 experts in offices throughout Europe, Asia, Africa, and the Americas working for transformative, iconic brands such as Tesco, Coca-Cola, Nestlé, Unilever and Metro.

Tesco Media is the ultimate media partner to brands. Built on unrivalled customer insight, it’s a media owner with soul, scale, and storytelling power. Tesco Media helps brands and agencies connect meaningfully with customers, drive creative effectiveness, and grow at the point of purchase. Through Tesco, the UK’s largest grocery retailer with over 24 million Clubcard households – representing nearly every home in the UK – Tesco Media offers brands an unparalleled view into the motivations and behaviours of the nation. It is positioned to solve business’s greatest marketing challenges, unlocking growth by enabling brands to connect with customers in meaningful ways online, in-store and via its off-site partners, all while enhancing the shopping experience for its customers.

We’re looking for a talented Media Administration Senior Lead who expects more from their career. Sitting within the Tesco Media Administration team, this role will lead and develop a high-performing team of Media Admin Assistants, owning the end-to-end campaign booking and financial administration process across various platforms. By driving operational excellence, standardised ways of working and on-time, accurate revenue and billing delivery, this role is critical to ensuring Tesco Media can scale efficiently, deliver against revenue targets, and maintain strong financial governance as the business continues to grow.

What you’ll be working on

• Operational leadership
• Own day-to-day workflow, ensuring accurate campaign bookings, pipeline build and billing.
• Embed standardised ways of working and scale best practice, including automation opportunities.
• Maintain data accuracy and consistency across our internal tools and Salesforce.
• Track and report on key KPIs including revenue delivery, billing timeliness and accuracy.
• Drive process improvements to improve efficiency, accuracy and scalability.
• Ensure compliance with Tesco Media policies, financial controls and audits.
• Lead, coach and develop a team of Media Admin Assistants.
• Build a collaborative, high-performing team aligned to Tesco Media values.
• Support hiring, onboarding and training to maintain consistent standards.
• Partner with the Group Head on resourcing and prioritisation.
• Manage day-to-day support and escalations, resolving issues quickly and clearly.
• Partner with Sales, Account Management, Media Client Services and Finance across campaign and billing delivery.
• Own credit and rebills, ensuring accurate revenue recognition at month end.
• Support system and process change through testing, training and change management.

What we expect from you

• Demonstrated experience leading or mentoring a small team, with a focus on coaching and performance management.
• Proven experience in media operations, campaign administration or commercial support within a media or retail media environment is strongly preferred.
• Strong understanding of campaign booking systems and workflow tools.
• Proficiency in Salesforce or equivalent CRM/financial systems.
• Excellent organisational skills and attention to detail, with the ability to manage multiple priorities in a fast-paced environment.
• Strong analytical and problem-solving skills, particularly around data accuracy and process optimisation.
• Confident communicator with strong interpersonal and stakeholder management skills.
• Collaborative mindset, with a passion for continuous improvement and operational excellence.

What you can expect from us

We won’t just meet your expectations. We’ll defy them. You’ll enjoy a comprehensive rewards package, thoughtful perks such as flexible working hours and a birthday off, and the opportunity to invest in cutting-edge technology that reflects our global ambition, all within a nimble, small-business environment that gives you the freedom to play, experiment and learn.

Our approach to Flexible Working

At dunnhumby, we value and respect difference and are committed to building an inclusive culture by creating an environment where you can balance a successful career with your commitments and interests outside of work. We believe that you will do your best at work if you have a work/life balance. Some roles lend themselves to flexible options more than others, so if this is important to you please raise this with your recruiter, as we are open to discussing agile working opportunities during the hiring process.