Senior Data Scientist
Hybrid - London 1 day per week
Up to £80,000
About the Role
We are working with a high-growth performance marketing and technology company who are looking for a new Senior Data Scientist to join the team.
You'll be working at the intersection of data, technology, and marketing, you’ll lead the delivery of cutting-edge machine learning, optimisation, and analytics solutions that drive measurable business outcomes.
Reporting directly to the Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients.
Initially hands-on, this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists, growing to five within a year) expected within the first six months.
Key Responsibilities
* Lead and deliver data science solutions across predictive modelling, optimisation, and experimentation.
* Act as a strategic data partner to key clients, owning technical delivery and ensuring high-quality results.
* Design and deploy machine learning models and optimisation algorithms in production environments.
* Collaborate with engineering, marketing, and analytics teams to integrate data science into campaign strategy and tooling.
What We’re Looking For
* Strong technical foundation with proficiency in Python, SQL, and cloud platforms (GCP or AWS).
* Experience with modern data warehouses.
* Proven experience in deploying machine learning models or optimisation algorithms into production.
* Solid understanding of digital marketing concepts, platforms (e.g., Google Ads, Meta), and analytics tools.
* Demonstrated experience across key use cases such as:
* Customer Lifetime Value (CLV) modelling
* Propensity scoring and lead prioritisation
* Budget allocation and bidding optimisation
* Experimentation, A/B testing, causal inference, MMM
* Advanced analytics (e.g. marginal returns curves, supply-demand modelling)
* Strong communication skills with the ability to simplify complex technical concepts for stakeholders.
Please note, that this role cannot offer sponsorship.