Lead Data Scientist — Scale Personalisation & Ads (Hybrid)

IO Associates; Fleckney; Hybrid; GBP 60,000 - 75,000; Full time

Job summary

A leading eCommerce business in the UK is looking for a Lead Data Scientist to take ownership of its core algorithms. This technical leadership role involves designing and deploying advanced predictive models and leading the algorithm roadmap for a new internal ads platform. Ideal candidates should have a strong background in data science, proven experience in machine learning systems, and expertise in tools like PyTorch or TensorFlow. The position offers competitive salary with bonuses, generous benefits, and a flexible working environment.

Benefits

Annual performance bonus

Sharesave scheme

Private medical insurance

Pension contribution

25 days holiday plus bank holidays

Staff discounts

Subsidised food

Gym discounts

Digital GP service

Qualifications

• Strong background in data science applied to personalisation, recommendations, or ranking problems.
• Proven experience owning and delivering production machine learning systems.
• Strong Python and SQL skills with experience in distributed processing such as PySpark.

Responsibilities

• Own the technical and algorithm roadmap for a large-scale internal ads platform.
• Design, test and deploy advanced predictive and ranking models.
• Lead architecture, model selection, and production design decisions.

Skills

Data science applied to personalisation

Production machine learning systems

PyTorch

TensorFlow

Python

SQL

Distributed processing (PySpark)

Tools

MLflow

Databricks

Job description

A leading eCommerce business in the UK is looking for a Lead Data Scientist to take ownership of its core algorithms. This technical leadership role involves designing and deploying advanced predictive models and leading the algorithm roadmap for a new internal ads platform. Ideal candidates should have a strong background in data science, proven experience in machine learning systems, and expertise in tools like PyTorch or TensorFlow. The position offers competitive salary with bonuses, generous benefits, and a flexible working environment.