Senior Data Scientist

Job Opportunity: Marketing & Data Science - Measurement & Modelling

Location: Hybrid (2 days per week in office for first month, flexible after)Duration: 3 months initiallyRate: £450-480/day (Outside IR35)Commute: 2 hours by train from Central London

Role Overview:This role focuses on marketing effectiveness and data science in the retail industry, with a strong emphasis on email campaign measurement, incremental value, and experimentation. The main responsibilities include finalising the Marketing Mix Modelling (MMM) framework, completing the A/B testing framework, and automating marketing analytics processes. The ideal candidate will have experience in causal inference, MMM, and experimentation.

Key Responsibilities:

• Finalising the MMM framework and modelling (70% complete)

• Building out the A/B testing framework

• Automating marketing analytics processes, particularly around experimentation

• Handling complex data and working with incomplete data

• Measuring campaign impact and refining marketing strategies

Tech Stack:

• Core: Databricks, SQL, Python, PySpark

• Nice to Have: R, dashboarding tools

Ideal Candidate:

• 4-5 years of commercial experience in data science, preferably in an eCommerce or marketing analytics environment

• Proven experience in causal inference, MMM, and experimentation

• Strong communication skills and the ability to explain data-driven insights

Interview Process:

• Stage 1: Technical assessment

• Stage 2: Knowledge-based interview