Cross Channel Performance Manager - Hearts & Science EMEA in London

This job is with Omnicom Media Group, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community.

About the Role

You will lead the day‑to‑day delivery and governance of the cross-channel digital performance program across EMEA via our Hub in London for ON Running. As an Agent of Change, you will bring technical depth, curiosity and collaborative leadership to the client, network and agency team. You will turn complex digital signals into clear strategic direction, platform data into actionable optimisation plans and brand ambition into performance media‑driven growth. You operate at the centre of a digital media team across our international activation hub, using shared workflows, governance frameworks and platform tools in sync with our teams in the US.

Responsibilities

• Optimisation Program Leadership
  • Coordinate daily drumbeat of the performance program working into the channel specialism teams (paid search, social, programmatic).
  • Identify quick-win performance actions and ensure timely and accurate implementation.
  • Contribute to global case studies and performance reporting and ensure quality is maintained.
  • Maintain operational processes including project management tools, track and demonstrate progress vs key actions.
• Commerce Digital Planning and Reporting
  • Support unified and centralised responses to client briefs including channel best practice, testing roadmaps.
  • Support forecasting and budget setting processes to drive revenue.
  • Produce clear, actionable reporting insights including strategic recommendations.
• Digital Channel Governance and Growth
  • Ensure markets align with global planning guidance.
  • Support markets in identifying performance improvements and managing the channel maturity frameworks.
  • Collaborate with channel specialists on activation and optimisation.
  • Conduct dashboard reviews and develop optimisation plans.
  • Implement digital roadmaps and ensure accountability, including platform capability and wider growth opportunities (e.g. wider agency capability and JBPs).
• Collaboration and Integration
  • Partner with planning, analytics and client teams to ensure optimal client outcomes.
  • Participate in global Hearts performance community.

Skills & experience

• Experience in planning, activating, optimising and reporting on digital performance campaigns.
• Strong understanding across paid search, social and programmatic.
• Skilled in performance analytics and dashboard insights.
• Ability to simplify and translate data and technical detail into client friendly insights and takeaways and present them alongside an ongoing narrative.
• Comfortable coordinating international workflows.

Nice to Have

• Experience working with ecommerce or retail clients.
• Experience working with DCO technologies.
• Additional language skills (French, German, Spanish, etc.).
• Familiarity with automation tools, feed-based advertising, or campaign optimisation platforms.
• Experience with project management tools – eg Asana.

Residence

Omnicom, Bankside 2, Southwark Street, London, with flexibility as required for EMEA collaboration.

Who We Are

A global media agency delivering connected, emotionally intelligent media through a proactive, boutique service for international clients.

We Are On A Mission

To turn change into competitive advantage for our clients—moving beyond superficial data to unlock the power of emotional connection. As Agents of Change, we help brands harness shifts in culture, technology, media and consumer behaviour to drive growth beyond borders.

How We Work

Our clients receive a high touch partnership that integrates the best of Omnicom’s reach, breadth and capability—making it easier, better and faster for brands to grow internationally.

What We Deliver

We identify growth audiences, orchestrate integrated media experiences and create predictable value worldwide. Powered by Omnicom, our ‘Heart & Science’ approach across audience creation, experience planning, digital, data, partnerships and operations, we deliver synchronized, value creating activation centrally and in collaboration with our local network.

Flexible Working

At Omnicom Media Group, we are committed to supporting flexibility for our people while fostering collaboration, innovation, and teamwork. We have a hybrid working model (three days in the office, two working remotely), to ensure that we meet the needs of both our people and our business, balancing the benefits of in-person connections with the flexibility of remote working. Our standard working hours are 9:30 – 17:30, but we offer the ability to flex around core hours of 10:30 – 16:30 to give our people flexibility on how they manage their working day, whether that’s in the office or working remotely. For example, you could start work at 8:30 and finish at 16:30 or start at 10:30 and finish at 18:30. We encourage open conversations between our people and managers to help navigate high-need periods and individual circumstances. Our goal is to create an environment where people feel genuinely supported to do their best - both in their careers and in their lives outside of work.

Be Your Best

We want everyone to make the most of the opportunity to shine and showcase your talents and we are happy to make adjustments in the recruitment process so you can be your best. Please discuss any specific requirements with your dedicated Talent Team member or if you would feel more comfortable, you can email us confidentially at to let us know how we can support you.

Diversity, Equity & Inclusion at OMG

At OMG, our vision is to be an agency where difference is valued and everyone is able to thrive in a culture of equality, inclusion and belonging. We are committed to providing a truly inclusive environment that reflects today’s society, where everyone is able to bring their true selves to work, and where diverse voices and backgrounds are valued, heard, and well-represented.