Principal Decision Scientist - Marketing

📋 Description

• Lead experimentation frameworks (geo-based, holdout) to validate marketing investments at scale.
• Evolve MMM capability with model development, calibration, and budget allocation for leadership.
• Develop models such as LTV, churn scoring, and audience segmentation for decisions.
• Architect and govern the marketing data layer with dbt modelling, data quality, and docs.
• Define and lead cross-functional analytics initiatives across teams on high-stakes problems.
• Translate complex findings into executive-ready narratives for data-driven decisions.
• Partner with Finance to ensure metrics, budgets, and unit economics align with reports.
• Collaborate with Data Eng and Marketing Tech to shape long-term marketing data stack.
• Lead the team’s thinking on AI tools to augment analytics and guide marketing use of AI.

🎯 Requirements

• 8+ years of experience in a similar role.
• Deep expertise across Acquisition (Paid Search, Paid Social, SEO) and Retention (CRM, Lifecycle, Churn).
• Proven hands-on experience building MMMs and incrementality tests (geo-based, holdout, synthetic control).
• Proficiency in applied statistical modelling (LTV, predictive scoring, causal inference).
• Advanced Python or R for stats, modelling, and automation, with production-grade code standards.
• Practical experience applying AI tools to accelerate analytics workflows.
• Experience architecting scalable data models using SQL and dbt.
• Exceptional ability to distil complex findings into clear narratives for leadership.
• Experience in high-growth SaaS or digital with understanding of CAC, LTV, Payback.
• Mentoring analysts and coaching on technical skills and stakeholder engagement.
• Exposure to product analytics or growth, connecting marketing and product data.
• Prior experience influencing tooling, vendor or data infrastructure decisions at an organisational level.

🎁 Benefits

• People-first culture – collaboration, authentic teamwork, inclusive space.
• Unlock potential – own projects and experiment with AI-first vision.
• Well-being perks – flexible hours, leave, bonuses, and parental leave.
• Grow with us – mentorship, coaching, and internal mobility.
• Packed with purpose – help 100,000+ SMEs grow with customer-driven work.
• Diversity & Inclusion – equal opportunity employer, inclusive culture.
• Eligibility – UK right to work without visa sponsorship or relocation.