Data Scientist – Experimentation Framework in London

OverviewWe are supporting a leading eCommerce business in the search for a Senior Experimentation Data Scientist to deliver high-impact experimentation across logistics and operational initiatives.

This role is explicitly not product-focused and will centre on experimentation relating to promotions, operational efficiency, and logistics performance.

This is a fast-moving engagement with tight timelines, requiring someone who can hit the ground running and operate autonomously within a squad-based delivery model.

Key Responsibilities

Design and execute experimentation frameworks focused on logistics and operational use cases

Lead A/B testing and controlled experiments to evaluate promotional and operational changes

Ensure analytical robustness through sense-checking data, assumptions, and outputs

Work closely with engineers, analysts, and operational stakeholders within a squad environment

Translate experimental outcomes into clear, actionable recommendations for the business

Operate independently while maintaining strong collaboration across technical teams

Technical Requirements

Advanced SQL (including joins, validation logic, and data interrogation)

Strong Python for analysis and experimentation workflows

Experience working with Google BigQuery or comparable cloud data platforms

Experimentation Expertise

Proven experience designing and building experimentation frameworks

Strong grounding in experimental design, statistical validity, and bias mitigation

Confident explaining experimental approaches verbally, not just via documentation

Ideal Contractor Profile

Senior-level experimentation data scientist with strong commercial awareness

Comfortable working at pace in short, delivery-focused contracts

Able to work independently with minimal oversight

Confident partnering with highly technical teams

Well-prepared, pragmatic, and delivery-oriented

Comfortable operating within tight timelines and changing priorities

Desired Skills and ExperienceSkills

Advanced SQL (joins, validation, optimisation)

Python for Data Analysis

Google BigQuery

Statistical Analysis & Inference

Data Quality & Sense Checking

Operational & Logistics Analytics

Stakeholder Management

Agile / Squad-Based Delivery

Experience

Senior-level experimentation data scientist within eCommerce or operational environments

Designing and building experimentation frameworks end to end

Delivering logistics or operations-focused experiments (non-product)

Working independently on short, high-impact contracts

Partnering with highly technical teams under tight timelines

How to ApplyIf you have experience building experimentation frameworks and thrive in dynamic, high-visibility roles, we\’d love to hear from you.

Apply now by sending your CV and availability to Atif Ahmad.

Seniority levelMid-Senior level

Employment typeContract

Job functionAnalyst

IndustriesInternet Marketplace Platforms

#J-18808-Ljbffr