Head of Performance & Effectiveness

Location: London / Hybrid
Salary: £90,000 - £120,000 + bonus
Industry: Digital Marketing / Media Agency
Specialism: Performance Marketing | Data & Analytics | Innovation
Contact: Jenny Dunford| Sphere Digital Recruitment

Join an Award-Winning Independent Agency at the Forefront of Performance, Data & Innovation

We're partnering with a powerhouse independent media agency that's redefining what performance marketing can be. With a stellar client base in retail and eCommerce, they're looking for a Head of Performance & Effectiveness to shape the future of how performance campaigns are delivered, measured, and evolved.

This role is part strategic leadership, part innovation hub-and 100% focused on creating next-level results. You'll be working across top-tier brands, leading a brilliant team of specialists, and building out a performance-first, data-powered future.

The Role: What You'll Be Doing

Leading Performance Excellence

• Own the agency's performance output across search, social, and display, with a strong focus on eCommerce outcomes
• Mentor and empower biddable teams to run efficient, effective, and on-brand campaigns
• Support robust, realistic forecasting strategies and ensure alignment across teams
• Drive continuous innovation-setting the bar for how the agency approaches channel performance

Data, Dashboards & Decision-Making

• In partnership with the agency's data leads, evolve the way client data is housed, analysed, and visualised
• Lead on building next-gen dashboards and reporting tools that are actionable and client-friendly
• Champion data consistency and rigour across all account teams-instilling a culture of performance accountability

Attribution & Thought Leadership

• Lead the charge on developing and evangelising a proprietary attribution model
• Build case studies, lead storytelling and create sector-leading insights
• Be the voice of innovation and shape the agency's position in the market through thought leadership

Product-Led Innovation

• Identify and deliver new, scalable products-from AI solutions to web audit tools
• Turn agency services into packaged, sellable products that clients love
• Lead on transformative ideas-pushing for bold, smart change at every level

Partner & Process Excellence

• Collaborate with senior leaders to elevate planning frameworks and internal documentation
• Overhaul how campaigns and reporting workflows operate-delivering best-in-class process design
• Help onboard strategic partners and set the gold standard for collaboration

About You

• Proven experience in a senior performance marketing or strategy role within an agency or high-growth brand
• Deep understanding of biddable media, eCommerce KPIs, and channel strategy
• Data-driven mindset, with a knack for turning insights into impact
• Comfortable leading cross-functional teams and presenting to clients/stakeholders
• A curious innovator-excited by emerging tech, AI, and building new products

Why Apply?

• Join a high-performing agency with a culture of creativity and autonomy
• Have real ownership of agency innovation and transformation
• Work with some of the most exciting brands in retail and eComm
• Hybrid working, strong benefits, and a big opportunity to make your mark

Sphere Digital Recruitment is proud to be an equal opportunities employer. We celebrate diversity and are committed to creating an inclusive environment for all employees and applicants, regardless of race, religion, gender identity, sexual orientation, disability, or age

Sphere Digital Recruitment currently have a variety of job opportunities across digital so feel free to get in touch with us to find out how we can help you. Please take a look at our website.

Sphere is an equal opportunities employer. We encourage applications regardless of ethnic origin, race, religious beliefs, age, disability, gender or sexual orientation, and any other protected status as required by applicable law.

If you require any adjustments or additional support during the recruitment process for any reason whatsoever, please let us know.