Head of Media Effectiveness

Head of Measurement - Retail Media
London (Hybrid)
Salary up to £100k + 17.5% bonus + £5k car allowance

We're partnering with a market-leading retail media and data business powering advertising for one of the UK's largest consumer platforms -reaching millions of households and working with globally recognised brands.

Following major investment and continued growth, they're hiring a Head of Measurement to build and define how advertising effectiveness is positioned, packaged, and taken to market.

This isn't a traditional analytics role. It sits closer to product marketing for measurement-owning the narrative, shaping the proposition, and translating complex capabilities into commercially compelling stories.

The role

• Own and define the measurement proposition from the ground up-starting with a blank sheet
• Shape how measurement capabilities are packaged, positioned, and taken to market
• Develop clear, compelling narratives that articulate the value of measurement to commercial teams
• Partner with product, data science, and commercial teams to align capabilities with market needs
• Build go-to-market plans for new measurement products and solutions
• Translate complex measurement methodologies (incrementality, attribution, MMM) into simple, commercial messaging
• Enable sales teams with materials, case studies, and proof points
• Act as the internal "voice of the customer," ensuring propositions land commercially

What they're looking for

• Experience in marketing measurement, analytics, or marketing science
• Strong commercial mindset with the ability to turn data into clear value propositions
• Background in product marketing, strategy, or measurement-led roles
• Understanding of incrementality, attribution, experimentation, or MMM
• Comfortable building propositions and frameworks from scratch
• Experience working cross-functionally with product, data, and commercial teams
• Strong storytelling and communication skills

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.