Strategy Partner - Allwyn in London

Join Hearts & Science and play a pivotal role in shaping the future of one of the UK’s most recognised brands. Working on Allwyn, you’ll help drive the transformation of The National Lottery—delivering bold, insight-led media strategy that creates meaningful impact at scale.

As a Strategy Partner, you’ll lead the strategic direction for this high-profile account, ensuring exceptional quality across all work. You’ll operate at two speeds: driving long-term transformation alongside senior leadership, while also elevating day-to-day media strategy to best-in-class standards in partnership with a Strategy Director.

What you’ll do:

• Define and deliver ambitious, data-driven media strategies across paid, owned, earned and shared channels.
• Inspire clients and internal teams with clear, compelling storytelling and strategic vision.
• Collaborate cross-functionally to unlock innovative, award-winning thinking.
• Lead workshops and influence senior stakeholders to drive business growth.
• Champion new ways of working, leveraging data, technology and emerging platforms.

What you’ll bring:

• Deep expertise in media strategy and connected planning.
• Extensive experience in media & comms strategy role, ideally from a media agency environment.
• Experience working in gambling/gaming, charity or portfolio client would be beneficial.
• Ability to turn complex data and insights into simple, impactful ideas.
• Strong communication and senior stakeholder management skills.
• Curiosity for marketing science, analytics and evolving technology.
• A collaborative mindset and confidence to challenge conventions.

At Hearts, we celebrate difference, value collaboration, and invest in your growth through continuous learning and development opportunities. If you’re excited by the chance to shape category-defining work—while growing your career in a supportive, forward-thinking team—we’d love to hear from you.

About the Agency: Hearts & Science, part of Omnicom Media, are one of the fastest growing agencies in the market. Built in the digital age with agility at our core, our DNA is different from your average media agency. Our people bring to life our values of challenging conventions, celebrating difference, collaboration and positivity.

The core of our difference is rooted in our culture, something we invest significant time and energy into nurturing to ensure our people remain happy and fulfilled. A central pillar of creating an agency Fit for the Future is making decisions that benefit our people, our agency, our partners and our clients both today and tomorrow. In media terms this means total transparency, over-and-above data governance, ethical media practices and thinking both long and short. This extends into our approach to learning & development, our diverse staff population, and social calendar.

Omnicom’s policy requires employees to work in the office for a minimum of three days a week, unless additional in-office days are directed by their agency or manager. Our objective is to increase this requirement over time, and many of our agencies as well as Omnicom’s corporate group already require five days of in-office attendance.

Omnicom is committed to hiring and developing exceptional talent. We agree that talent is uniquely distributed, and we’re focused on developing inclusive teams that can bring the best solutions to everything we do. We strongly believe that celebrating what makes us different makes us better together. Join us—we look forward to getting to know you.