Data Scientist & Measurement Specialist

EF Recruitment; Greater London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading SaaS organization in Central London seeks an experienced Data Scientist for a 12-month contract. This hybrid role requires building predictive models and leading a Data Clean Room strategy. Candidates should have over 3 years of experience in data analytics, a degree in a relevant field, and advanced SQL skills. Benefits include a long contract and free breakfast.

Benefits

Free breakfast

Hybrid role

Long contract

Qualifications

• 3+ years of experience working in marketing science or data analytics teams.
• Ability to write complex SQL queries.
• Understanding of hypothesis testing and confidence intervals.

Responsibilities

• Build predictive models to simulate business outcomes.
• Lead the Data Clean Room strategy within Meta Advanced Analytics.
• Design and execute Conversion Lift Studies and Brand Lift Studies.

Skills

Experience in marketing science or data analytics teams

Advanced SQL skills

Understanding of Bayesian inference

Experience with Marketing Mix Models

Education

B.Sc. Economics, Statistics, Mathematics or Data Science

Job description

Our client, an award winning SaaS organisation providing software solutions to the SME marketplace, is now seeking an experienced Data Scientist for a 12 month contract.

Central London location, hybrid, with 3 days a week in the office.

Responsibilities

• Forecasting: Build predictive models to simulate business outcomes under various economic and budgetary scenarios, acting as the "radar" for the marketing department.
• Serve as the analyst lead for the Data Clean Room (DCR) strategy, specifically within Meta Advanced Analytics (AA).
• SQL: Write and optimize advanced SQL queries.
• Learning Agenda & Causal Experimentation. Design and execute rigorous Conversion Lift Studies (CLS) and Brand Lift Studies (BLS).

Skills

• 3+ years of experience working in marketing science or data analytics teams.
• B.Sc. Economics, Statistics, Mathematics or Data Science.
• SQL: Advanced level. Ability to write complex CTEs, window functions, and optimize joins for distributed systems.
• Experience with Marketing Mix Models (MMM). Understanding of Bayesian inference, Adstock transformations, and saturation curves.

Useful experience

• Hands‑on experience with at least one major DCR environment.
• Deep understanding of hypothesis testing, confidence intervals, p‑values, and selection bias.
• Understanding of AdTech and paid media mechanics, margin profiles.

Benefits

• Global company, long contract.
• Hybrid role.
• Free breakfast.