Global Media Effectiveness Manager

SmartRecruiters, Inc.; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Staff discount

HIP program

Cycle to work

Discounted gym membership

Employee assistance via retail trust

Job summary

COS in London seeks a Global Media Effectiveness Manager to shape measurement for our global paid media and MMM, focusing on data-driven optimization that links media spend to brand and commercial outcomes.

You will lead global measurement, reporting, budgets, and cross-functional projects, partnering with analytics, markets and agencies to elevate media effectiveness.

Qualifications

• Extensive paid media measurement experience in a premium brand or agency.
• Deep knowledge of paid media channels (social, display, OOH, CTV, search, programmatic).
• Advanced proficiency in measurement, brand health metrics and MMM.
• Data-driven decision making; translate data into actions.
• Understand P&L impact; link upper funnel to bottom line.

Responsibilities

• Manage and evolve the global paid media measurement framework and KPIs.
• Establish a global learning and experimentation agenda with lift studies and MMM.
• Support high-impact experiments and evidence-based investment decisions.
• Drive MMM adoption and provide insights to markets for planning.
• Oversee global reporting ecosystem, dashboards and executive summaries.
• Coordinate cross-functional media effectiveness initiatives with agencies and analytics teams.
• Develop localised budget recommendations using marketing data and brand insights.

Skills

Media measurement

MMM / attribution

Stakeholder management

Data analysis

Reporting & storytelling

Budget optimization

Presentation skills

Cross-functional collaboration

Tools

GA4

PowerBI

MMM tools

Job description

COSoffers a wardrobe of ready-to-wear and accessories rooted in exceptional quality and lasting design. The brand has an elevated aesthetic that embodies luxury with an emphasis on craftsmanship, innovation and compelling fashion movements.

Job Description

As the Global Media Effectiveness Manager at COS, you will play a key role in contributing to the strategic measurement and optimisation of our global full-funnel paid media strategy. With a strong focus on data and insights, you will ensure our media investment delivers measurable impact and supports both brand and commercial objectives.

What you will do

Paid Media Effectiveness

• Manage and evolve the global paid media measurement framework, including media measurement methodologies, KPIs, reporting standards, learning agendas and experimentation
• Establish a global learning and experimentation agenda, assessing paid media effectiveness through incrementality testing, lift studies, and Marketing Mix Modelling (MMM)
• Support high-impact experiments that challenge channel assumptions and improve media investment decisions through evidence-based learnings
• Drive the adoption of MMM and broader effectiveness insights across markets, ensure insights and recommendations are used to inform market media planning

Paid Media Reporting

• Manage the global paid media reporting ecosystem, including the creation of scorecards, dashboards, executive reporting, benchmarking, insights delivery, and reporting templates
• Ensure consistency in reporting frameworks, KPIs and measurement standards across markets, enabling effective performance evaluation, benchmarking and decision-making
• Translate complex data outputs into clear, compelling narratives for senior leadership and non-technical stakeholders
• Provide regular reporting and strategic recommendations to global and regional stakeholders, linking paid media performance to business and commercial outcomes

Paid Media Budget Setting & Investment Planning

• Support media investment and annual budget setting work with agency partners and internal stakeholders to determine optimal media spends and splits per market
• Utilise brand, customer and marketing data to create evidence-based, localised budget recommendations to inform regional paid media investment strategies
• Support quarterly reforecasting and any shifts in investment through the application of MMM insight, customer acquisition KPIs and other media metrics.

Paid Media Measurement Projects

• Lead and coordinate cross-functional media effectiveness initiatives, managing project delivery across global, regional, agency and analytics teams
• Manage relationships with third party measurement partners, agencies and technology suppliers, ensuring measurement methodologies, data quality and reporting standards are aligned to COS’ business objectives and measurement framework
• Strengthen media measurement foundations by partnering with analytics teams and media platforms on initiatives such as conversion signal enhancement and offline sales integration
• Evaluate and develop measurement approaches for emerging marketing channels and media priorities, including AI visibility and total search
• Identify measurement challenges and develop solutions to ensure media activity is measurable across existing and emerging channels, technologies and business priorities.

Qualifications

• Extensive years of paid media measurement experience within a large premium brand or agency environment
• Paid media channel expertise - deep knowledge of all paid mediachannels (paid social, display, OOH, CTV, paid search, programmatic, affiliates).
• Advanced proficiency in paid media measurement, including a strong understanding of brand health metrics, paid media attribution models, interpreting MMM, liftstudies, and incrementality testing and how to balance them with in-platform signals.
• Data-driven decision making – strong analytical skills to interpret brand health, brand mediaand performance marketing data and translate insights into clear actions.
• Deep understanding of P&L impact. Expert at linking upper funnel brand equity metrics to bottom line growth.
• Hands-on measurement tools experience - MMM tools, GA4, PowerBI, and in-platform lift studies.
• Budget optimisation & media efficiency – ability to maximise ROI and drive impactwith constrainedbudgets.
• Stakeholder management & influence - ability to navigate complex organisational structures and influence regional stakeholders to adopt global paidmedia measurement frameworks
• Excellent presentation skills, experienced communicator capable of navigating ambiguity by translating paid media data into clear, actionable narratives.Skilled at presenting and influencing stakeholders, ensuring media investment strategies are presented with clarity.

Additional Information

This is a Full time permanent contract based at our Head Office in London.

We value collaboration and believe that great ideas thrive when we work closely together. Therefore, this role is primarily office-based, with Threedays per week at the office to foster teamwork and engagement. Two day per week, you’ll have the flexibility to work remotely.

WHY YOU’LL LOVE WORKING HERE

We offer all ouremployeesattractive benefits with broad development opportunities. All our employees receive a staff discount usable on all our H&M Group brands in stores and online. In addition to our staff discount, all our employees are included in our H&M Incentive Program – HIP. You can read more about our H&M Incentive Program here.

In addition to this UK- based colleagues also receive

• Up to20days holiday
• Discounts on various activities and financial/lifestyle products via our benefits hub
• Cycle to work scheme
• Discounted gym membership
• Employeeassistancevia retail trust

JOIN US

Our uniqueness comes from a combination of many things – our inclusive and collaborative culture, our strong values, and opportunities for growth. But most of all,it’sour people who make us who we are.We are committed to a recruitment process that is fair,equitable, and based on competency.

We look forward to hearing from you