Portfolio Strategy Lead

The Portfolio Strategy Lead at Zenith is responsible for driving connected, data-led media strategies across ATL and digital channels for a portfolio of FMCG brands, while ensuring delivery excellence, operational consistency, and high-quality execution.

This role sits at the intersection of strategy, audience intelligence, and integrated media planning, leveraging data signals, identity frameworks, and channel expertise (ATL + digital) to deliver cohesive consumer experiences across the full funnel.

The role acts as both a trusted client partner and internal orchestrator, ensuring seamless integration across Zenith capabilities.

• Integrated ATL + Digital Strategy Leadership
• Lead the development of full-funnel media strategies across ATL and digital channels, ensuring seamless integration between offline and online touchpoints
• Build strategies that are enriched by audience insights, category understanding and defining source of growth
• Apply audience-first and data-led planning principles to inform ATL and digital investment decisions
• Translate client business objectives into clear, connected strategies across all media touchpoints
• Leverage data signals, identity graphs, and platform insights to improve targeting, sequencing, and effectiveness
• Ensure strategic plans reflect performance metrics aligned to client business objectives
• Portfolio Stewardship & Client Leadership
• Act as the senior lead across a portfolio of FMCG brands, ensuring seamless day-to-day management
• Build strong, trusted client relationships through consistent delivery and strategic value
• Oversee end-to-end campaign execution across ATL and digital, ensuring:
• • Accuracy and integrity of flowplans and media plans
    • Timely and coordinated multi-channel campaign delivery
    • Strong financial management and budget control
    • Accurate reconciliation and billing processes
    • Maintain high standards of consistency, quality, and attention to detail across all channels
    • Proactively manage timelines, dependencies, and stakeholder alignment
• Data, Audience & Identity-Led Planning
• Champion the use of audience-first thinking across all strategies
• Integrate multiple data sources and signals (first-party data, platform data, syndicated research, campaign performance data)
• Apply identity-based planning frameworks (e.g. identity graphs, audience segmentation models) to improve targeting and reach efficiency
• Work with data and tech teams to enhance audience understanding, measurement, and optimisation
• Drive a culture of data-informed decision making across all media channels
• Operational Excellence & Delivery Consistency
• Drive best-in-class processes, governance, and ways of working across ATL and digital execution
• Ensure accuracy, consistency, and quality control across planning, buying, implemtation and financial management
• Maintain strong ownership of flowplans, budgets, reconciliations, and campaign delivery timelines
• Continuously refine processes to improve efficiency, clarity, and cross-channel integration
• Ensure alignment with Zenith and Publicis Media operational frameworks and standards
• 5. Performance & Commercial Accountability
• Own delivery against client KPIs and campaign objectives across ATL and digital channels
• Identify opportunities to improve media effectiveness, efficiency, and channel synergy
• Support forecasting, scoping, and resource alignment
• Contribute to portfolio growth and organic expansion opportunities

6. People Leadership & Development* Own delivery against client KPIs and campaign objectives across ATL and digital channels

• Identify opportunities to improve media effectiveness, efficiency, and channel synergy

• Support forecasting, scoping, and resource alignment

• Contribute to portfolio growth and organic expansion opportunities

• Thought Leadership & Innovation

• Stay ahead of category trends, media innovation, and platform evolution across ATL and digital

• Bring proactive ideas leveraging data, technology, and emerging media ecosystems

• Champion test-and-learn approaches and continuous optimisation across channels Contribute to Zenith thought leadership, credentials, pitches and case studies

• 7+ years’ experience in media strategy

• Strong FMCG/CPG experience managing multi-brand portfolios

• Proven expertise in both ATL and digital media strategy and planning

• Strong understanding of media ecosystems across TV, radio, OOH, search, social, programmatic, and video

• Experience with data-led planning, audience frameworks, and identity-based marketing approaches

• Strong commercial acumen (budget management, forecasting, profitability)

• Experience working within a matrixed, cross-functional agency environment

• Strong client leadership and stakeholder management skills

Core Competencies

• Integrated Thinking: Seamlessly connects ATL and digital into unified strategies
• Data-Led Planning: Uses signals, insights, and audience data to guide decisions
• Accountability & Ownership: Takes responsibility for outcomes and delivery quality
• Precision & Discipline: Strong operational rigour across all channels
• Client Leadership: Builds trust through consistency and strategic value
• Collaboration: Leverages Power of One effectively

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