Opportunity General Marketing work from LinkedIn, X, Reddit and Upwork, in one list. Find me work
growthroles

Sr. Marketing Effectiveness Manager (MMM) - Europe

Mars (External) Open · verified Oct 25, 2026
Hybrid GBR-London-London Full-time Senior General Marketing

At a glance

Senior General Marketing role at Mars (External). GBR-London-London · full-time · no salary stated · we estimate £46,000–£80,500 across the United Kingdom.

Estimated pay

Mars (External) has not published a salary for this role. The figure below is our estimate, not theirs.

£46,000 – £80,500
What the middle half of senior general marketing roles in the United Kingdom paid, among postings that did state a salary.
Worked out from 27 postings that stated pay, median £60,000. Last updated Oct 21, 2026.
RoleGeneral Marketing
SenioritySenior
LocationGBR-London-London
WorkplaceHybrid
EmploymentFull-time
PostedOct 23, 2026 · 2d ago
Role brief

growthroles summary, based on the employer's posting.

What you'll do

  • Run the regional MMM roadmap across markets, coordinating plans, milestones, risks and decisions with regional and global leaders
  • Lead MMM studies from market data checks through model review, then turn the findings into market-specific reports and recommendations
  • Work with marketing, media and commercial teams to use MMM findings in annual plans and media investment choices
  • Keep regional improvement priorities moving, including data quality, process updates, training and alignment with global standards

What you bring

  • Six to ten or more years in MMM, marketing analytics, commercial analytics or marketing effectiveness
  • Experience taking MMM projects from business needs and data preparation through modelling and recommendations
  • Experience working directly with MMM providers or analytics consultancies
  • Strong project coordination, stakeholder communication and ability to turn model results into business actions

Who this fits

This senior regional role suits someone who can lead MMM delivery across markets and work directly with market teams, vendors and global partners. The position is based in London, United Kingdom, and is hybrid.

From the employer

Job Description:

The Sr. Marketing Effectiveness Manager is responsible for the successful delivery, adoption and continuous improvement of the Marketing Mix Modelling (MMM) capability across their region. Acting as the regional owner of the capability, the role leads the end-to-end execution of the regional roadmap, ensuring high-quality model delivery, stakeholder engagement and business value realisation.


Working closely with market teams, MMM vendors, Data & Digital teams and the broader Global MMM team, the role ensures regional priorities are delivered in alignment with global standards while identifying opportunities to enhance the capability through continuous improvement.


The Senior MMM Manager serves as the primary business partner for markets, ensuring MMM insights are translated into actionable business decisions and embedded into ongoing marketing planning and investment processes.


What are we looking for?

  • 6–10+ years' experience in Marketing Mix Modelling, marketing analytics, commercial analytics or marketing effectiveness.
  • Proven experience delivering end-to-end MMM projects from business requirements, data preparation, data science through to business recommendations.
  • Demonstrated and strong project management and stakeholder management and communication skills.
  • Experience working directly with MMM vendors or analytics consultancies.
  • Experience working across multiple markets within a regional or global organisation is highly desirable.
  • Ability to interpret modelling outputs and translate findings into actionable business recommendations.


What will be your key responsibilities?


Regional Roadmap & Programme Delivery

  • Own and execute the regional MMM roadmap, ensuring delivery milestones, priorities and business commitments are achieved.
  • Lead programme planning, governance and execution across all markets within the region.
  • Facilitate working groups, steering meetings and project governance forums.
  • Monitor programme progress, proactively managing risks, issues, dependencies and mitigation plans.
  • Produce regular status reporting and provide clear escalation of risks and decisions to regional and global leadership.
  • Coordinate cross-functional activities across markets, Digital, Data, vendors and business stakeholders to ensure successful delivery.

End-to-End MMM Delivery

  • Lead the end-to-end execution of MMM studies across assigned markets.
  • Partner with market teams, Digital and Vendors to ensure data quality, business validation and model readiness prior to modelling activities.
  • Review model outputs, challenge results where appropriate and ensure analytical quality before business release.
  • Develop market-specific insight reports and strategic recommendations based on modelling outcomes.
  • Support quality assurance and validation of outputs within MMM platforms and reporting tools.

Business Partnership & Stakeholder Management

  • Act as the primary MMM business partner for regional marketing, media and commercial teams.
  • Facilitate insight workshops and business review sessions to support interpretation and application of MMM findings.
  • Capture business requirements and translate market needs into product enhancements and capability improvements.
  • Drive adoption of MMM recommendations within annual planning and media investment decisions.
  • Build trusted relationships across markets and act as the regional advocate for the MMM capability.

Continuous Improvement & Product Development

  • Maintain and prioritise the regional backlog of enhancements, data improvements and capability requirements.
  • Identify opportunities to improve data quality, modelling processes and business adoption.
  • Partner with the Global MMM Operations & Governance Manager to ensure regional improvements are aligned with global standards and product roadmaps.
  • Contribute regional learnings, feature requests and innovation ideas to support the evolution of the global capability.
  • Ensure regional documentation, process maps and knowledge assets remain current and consistent.

Governance, Adoption & Value Realisation

  • Ensure all regional activities comply with global governance, modelling standards and operating procedures.
  • Owns regional adoption, training, business outcomes and value delivered through the MMM capability.
  • Support the measurement and reporting of regional performance against defined KPIs.
  • Share best practices, lessons learned and successful case studies with the global MMM community.

What can you expect from Mars?

  • Work with diverse and talented Associates, all guided by the Five Principles.
  • Join a purpose driven company, where we’re striving to build the world we want tomorrow, today.
  • A strong focus on learning and development support from day one, including access to our in-house Mars University.
  • An industry competitive salary and benefits package, including company bonus.

#TBdigital

Opportunity

General Marketing work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

General Marketing

Find me work

By the team behind growthroles.

Find me work
Opportunity

General Marketing work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Find me work

By the team behind growthroles.