Location
White City, London - 2 days a week in the office

Hours
Full Time

Salary
Negotiable

About the Role
We are looking for a proactive, detail-oriented "doer" to become the operational engine of our measurement framework. This role is for an orchestrator who thrives on making complex test & learn projects happen. You will plan, lead, and unify the cross-channel delivery of testing solutions to improve channel effectiveness. Sitting at the intersection of our Media Channel Leads and Analytics specialists, you will ensure our Marketing Mix Models (MMM) are fed with the right data and that Test & Learn ideas are translated into rigorous, actionable experiments. You will be the guardian of "what works," ensuring every lesson learned is recorded and applied to future media output.

Main responsibilities
1. MMM Operations & Data Stewardship
- Serve as the primary point of contact for all data sharing and queries from MMM partners.
- Manage the timely gathering, cleaning, and formatting of media spend, delivery, and performance data for Econometric (MMM) models.
- Ensure all shared data is accurate and reflects the reality of media activity across all platforms.
- Assist in interpreting model results and translate statistical outputs into clear narratives about channel performance and growth opportunities.
- Act as the daily contact for our econometrics agency, managing their workflow, ensuring adherence to briefs, and challenging recommendations when necessary.

2. The Experimentation Bridge (Test & Learn)
- Collaborate with strategists and analysts to translate ambitious ideas from Channel Leads into technical briefs.
- Design and set up cross-channel Test & Learn initiatives, including A/B testing, Meta/Google Lift studies, and regional Geo-tests across owned and paid media.
- Own the deployment of the measurement roadmap, prioritizing tests and model updates based on media calendar and business priorities.
- Maintain the central Test & Learn Log to document outcomes and ensure lessons learned are actively used in future media planning.

Experience
- Proven experience working across multiple media channels.
- Experience with Marketing Mix Modeling, Multi-Touch Attribution, and Incrementality Testing.
- Experience managing relationships with third-party measurement partners.
- Demonstrable experience within a media business, either agency (Data/Analytics/Planning/Transformation) or in-house effectiveness operations.
- Experience with both paid and owned media and understanding of their measurement challenges.

About you
- Strong understanding of marketing measurement and analytics fundamentals (significance, incrementality, coefficients).
- Ability to communicate effectively with Media Planners and multi-channel teams.
- Highly organized with excellent project management skills.
- Operational grit and willingness to engage deeply with data to ensure accuracy.
- A proactive "doer" who thrives on managing multiple workstreams and competing deadlines.

Qualifications
No specific qualifications are stated; however, relevant experience and skills in media measurement and operations are essential.