Marketing Effectiveness Manager

A high-growth, FTSE-listed Fin Tech business is looking for a commercially sharp Marketing Effectiveness Manager to optimise and scale its marketing investment strategy across acquisition, retention and brand.

This is not a model-building role. Foundations are already in place. The opportunity here is to unlock meaningful value from existing marketing mix models and experimentation frameworks, driving smarter investment decisions and measurable efficiency gains.

If you enjoy translating data into strategic action, influencing senior stakeholders and shaping experimentation roadmaps, this is a high-impact role with real commercial visibility. You will sit within the Performance & Lifecycle function, partnering closely with Data Science, Analytics and channel leads.

• Refine and optimise existing marketing mix models
• Design and prioritise incrementality and geo‑based experiments
• Coach channel managers on test strategy and execution
• Translate complex analytical outputs into clear commercial recommendations
• Present insights to senior stakeholders, influencing budget allocation decisions
• Build a structured experimentation roadmap to drive measurable ROI improvements

This is a senior individual contributor position. You will not be building MMM models from scratch. Instead, you will act as the commercial owner of marketing effectiveness – ensuring models are interpreted intelligently, experiments are prioritised strategically, and insights directly influence investment decisions.

The business is scaling rapidly and investing heavily in marketing. There is strong appetite for data‑led decision making and significant scope to drive impact.

• 3+ years owning marketing measurement and experimentation
• Experience with incrementality testing and conversion lift
• Exposure to marketing mix modelling
• Strong Excel skills (SQL desirable)
• Ability to present complex findings to senior non-technical stakeholders
• Commercial judgement and confidence in decision‑making
• Experience in ecommerce, fintech, travel or other fast-moving sectors is advantageous but not essential.

• Competitive base salary
• Bonus scheme
• Flexible benefits allowance (cash option available)
• Hybrid working model - 3 days in office, 2 from home
• Strong growth trajectory and commercial exposure