Senior Data Scientist, Creative Optimization
Who we are:
Choreograph is WPP's global data products and technology company. We're on a mission to transform marketing by building the fastest, most connected data platform that bridges marketing strategy to scaled activation.
We work with agencies and clients to transform the value of data by bringing together technology, data and analytics capabilities. We deliver this through the Open Media Studio, an AI-enabled media and data platform for the next era of advertising.
We're endlessly curious. Our team of thinkers, builders, creators and problem solvers are over 1 ,000 strong, across 20 markets around the world.
About the Creative Optimisation product:
The Creative Optimisation product is a DCO (Dynamic Creative Optimization) application that is built and maintained in-house at Choreograph , by the Optimi z ation team.
The product enabl es p ersonaliz ation of creative content at scale, across multiple channels such as digital display, mobile apps, CTV, YouTube, video and social.
This is no start up. The application is already serv ing tens of millions of ads and t erabytes' worth of media , everyday in real-time, across the globe .
About this role:
We are on the lookout for a Senior Data Scientist to join our team to co- develop a step-change feature: Algorithmic Content Opitmization (ACO) . Our vision is to leaverage data signals to algorithmically serve the most relevant creative to the right audience in the right moment that maximises performance, continuously .
The role will report to VP Data Science, and be part of a small (but growing!) team of Data Scientists.
The ideal candidate wi ll have a background in Reinforcement Learning (or related disciplines ) , with hands-on cloud technology experience .
Whilst commercial experience is highly desirable, given the deployment of RL at scale remains relatively nasant , we're happy to consider candidates with academic research as well as commercial background .
The candidate though does have to be truly, technically competent. F or the scale and complexity at which our product operates , off-the-shelf solutions are often not fit-for-purpose. The ideal candidate has to have the ability to customis e source cod e , add in new features and code from scratch .
Whilst model deployment / software development experience is highly desirable, we do have a team of engineers to support so exposure in this space will be sufficient .
Culture-wise, we're looking for a great team player who is passionate about applying Data Science techniques to solve complex problems and drive innovation.
In return, you will get the opportunity to solve cutting-edge problems , and drive measurable performance improvement for our clients. Not to mention, working with a team of supportive, seasoned deverlopers , product managers and data scientists who have successfully built and deployed scalable, global product s.
Key Responsibilities:

Develop and optimize the ACO algorithm(s) and related Data Science compone n ts for the product

Design and contribute to the end-to-end machine learning pipeline from data collection, reprocessing to model training, simulation, evaluation, deployment and experimentation / testing

Implement and interpret explainability frameworks to provide clear insights into model decisions, ensuring transparency and compliance with WPP standards

Collaborate with stakeholders to identify business needs and translate these requirements into technical solutions that are scalable and impactful

Conduct rigorous model testing and validation to ensure robustness and accuracy

Prepare detailed documentation and reports that communicate complex model behaviours, predictions, and insights in a manner accessible to both technical and non-technical audiences

Stay abreast of academic research and industry advancements in RL , plus AI / ML in general.

Knowledge - share and support the wider team and Data Science community to drive innovat ions based on your work

Essential q ualifications:

Bachelor's or master's degree in D ata S cience , Computer Science, Engineering, Statistics, or a related quantitative field

Hands-on (academic/commercial) e xperience in implementing Reinforcement Learning (or a related displicine ) . Please note:

We use the term R einforcement L earning as an umbrella term rather than a specialist term for state-dependent action set framework s

Completing a module / thesis on this topic as part of bachelor's degree is not considered as sufficient academic experience . We're primarily thinking about the experience of conducting an original piece of research as part of an MRes , PhD, fellowship, etc

Proficiency in Python and SQL

Experience of using Cloud technologies. GCP will be ideal, but other mainstream ones are fine as well

Ex perience of / exposure to model deployment and/ or software development

Demonstrable statistical and machine learning knowledge

Effective communication skills to work with different stakeholders / team members with varying degrees of knowledge in Data Science

A collaborative team player

Highly Desirable qualifications :

Research degree ( MRes or PhD ) with a thesis on Reinforcement Learning or related discipline

Knowledge / experience in Causal Inference

Commercial experience in implementing and deployment RL or a similar personalisation system

Commercial experience in software development

Commercial ML Ops experience

(Please note this is a UK based role and requires individuals to have the right to work in this location)

Group M Worldwide Inc.

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Senior Data Scientist - Creative Optimization London, England