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Administrative Assistant (6-month contract)

Dunnhumby

London permanent

Posted: February 16, 2026

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Quick Summary

Administrative Assistant (6-month contract) in London, UK

Job Description

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 and Insight Platform is a partnership between Tesco, the UK’s largest grocery retailer, and dunnhumby, a global leader in Customer Data Science. Together, we always put the customer first.

Fuelled by data from over 24 million Clubcard holders, our closed-loop measurement helps brands understand consumer behaviour and ensures that every pound of advertising budget is spent targeting the right customer, at the right time, with the right message, across the full marketing funnel. We're here to help brands Shape What Britain Buys.

We’re looking for an Administrative Assistant (6-month contract) who expects more from their career. It’s a chance to improve Tesco Media’s Sales Team. It’s an opportunity to work with a market-leading business to enable Tesco Media and its clients to grow. This role will provide administrative support to our Media Sales Team with general co-ordination and account management in a fast-paced environment.

You will be responsible for updating our regular systems, new bookings and contracts, pipeline management of media campaigns and invoicing of campaigns. You will also support the teams in building their audiences and segmentations for their media campaigns and in providing measurement for the campaigns once they are completed.

You will support the teams in their admin, being responsible for ensuring all actions are completed on time in full.

You will have a keen eye for detail and a passion for looking for efficiencies and new processes / ways of working, both within your team and for the wider Tesco Media teams.

Throughout your work, you will interact with many different teams across the Tesco Media business, which will require a high level of organization, strong knowledge of prioritization and the ability to manage your own time, with the support of your team lead.

What we expect from you:

• Attention to detail

• Advanced Microsoft Office skills in particular with PowerPoint and Excel

• Energetic and motivated

• Strong communication and relationship management skills

• Ability to multi-task and demonstrate agility

What you can expect from us

We won’t just meet your expectations. We’ll defy them. So you’ll enjoy the comprehensive rewards package you’d expect from a leading technology company. But also, a degree of personal flexibility you might not expect. Plus, thoughtful perks, like flexible working hours and your birthday off.

You’ll also benefit from an investment in cutting-edge technology that reflects our global ambition. But with a nimble, small-business feel that gives you the freedom to play, experiment and learn.

And we don’t just talk about diversity and inclusion. We live it every day – with thriving networks including dh Gender Equality Network, dh Proud, dh Family, dh One, dh Enabled and dh Thrive as the living proof. We want everyone to have the opportunity to shine and perform at your best throughout our recruitment process. Please let us know how we can make this process work best for you.

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.

For further information about how we collect and use your personal information please see our Privacy Notice which can be found (here)

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