Senior Marketing Effectiveness Manager (Maternity Cover) | £75,000-£85,000 Bonus | Watford Junction | 12-month FTC Are you a marketing analytics leader with a passion for driving marketing effectiveness through data-driven insights? A leading UK business is seeking a Senior Marketing Effectiveness Manager to join their team on a 12-month maternity cover. You'll lead a specialist team of econometricians and work closely with senior marketing, finance, and product stakeholders to optimise multi-million-pound marketing investments. This is a hands-on leadership role blending advanced econometrics with strategic commercial insight to influence key business decisions. Whether you're a deep-dive econometrics specialist or a broad marketing analytics generalist, your expertise in translating complex models into actionable marketing strategies will be critical. Key requirements: Proven experience managing marketing analytics or econometrics teams Strong commercial focus with excellent stakeholder management skills Hands-on expertise in SQL, Python, R and econometric modelling Ability to drive marketing investment optimisation through data-driven recommendations Experience working cross-functionally across finance, marketing, and analytics teams Why apply? Lead one of the largest marketing budgets in the UK Influence strategic marketing investment decisions at senior levels Opportunity to innovate and shape marketing measurement tools and processes Flexible hybrid working (3 days onsite) Competitive salary bonus If you're ready to step into a senior leadership role and deliver measurable marketing impact, apply today.