Media Mix Modelling (MMM)

CONTRACT ROLE - Media Mix Modelling (MMM) Contractor

| Fully Remote | Up to £550 p/d | Short-Term (12 Days Over 4 Weeks)

THE OPPORTUNITY

We're looking for an experienced Media Mix Modelling (MMM) Contractor to support an upcoming engagement, working within an existing Python-based modelling environment.

This is a purely technical, non-client-facing role, focused on extending an existing MMM framework, preparing and validating data, and ensuring the model is ready for execution.

The work is delivery-focused and well-suited to someone comfortable picking up an existing codebase, working independently, and contributing to a fast-moving modelling engagement with minimal oversight.

THE ROLE

As an MMM Contractor, you will:

• Review and update existing Python-based MMM notebooks to incorporate additional media channels
• Prepare and validate input data from multiple sources prior to modelling
• Perform data cleaning, transformation, and feature engineering
• Run, calibrate, and sense-check MMM model outputs
• Support model validation and quality checks to ensure outputs are robust and usable
• Document methodology, assumptions, and any updates to the modelling approach
• Collaborate asynchronously with the internal team, maintaining availability during UK working hours

TECH STACK / REQUIREMENTS

• Proven experience delivering Media Mix Models end-to-end
• Strong Python skills, including working in notebook-based environments (e.g. Jupyter)
• Experience working with existing codebases and extending models
• Experience with data wrangling, transformation, and pipeline preparation
• Familiarity with MMM techniques and frameworks such as:
• Bayesian MMM
• PyMC / PyMC-Marketing
• Robyn (or equivalent)
• Experience working with marketing data (media channels, spend, performance metrics)
• Ability to work independently with minimal guidance

NICE TO HAVE

• Exposure to both B2B and B2C brand environments
• Experience with causal inference or econometrics approaches
• Experience validating MMM outputs against business performance
• Familiarity with cloud environments (AWS, GCP, Azure)
• Experience working in remote, async teams

TO BE CONSIDERED...

Please apply directly or email with your CV and availability.

KEYWORDS

Media Mix Modelling, Marketing Mix Modelling, MMM, Python, PyMC, PyMC-Marketing, Robyn, Bayesian Modelling, Econometrics, Marketing Analytics, Adstock, Saturation, Data Science, MMM Contractor