Lead Data Science Consultant - Retail/Consumer Services

Harnham; Greater London; On-site; GBP 70,000 - 120,000; Full time

Job summary

Harnham is scaling its AI & Data Science capability in the UK, focusing on Retail and Consumer Services. You’ll lead hands-on Data Science projects across pricing, forecasting, supply chain and operational optimisation, working directly with client stakeholders.

Ownership from problem shaping to deployment and measurable business impact, using Python, SQL, ML and Databricks.

Qualifications

• Lead hands-on data science projects across pricing, forecasting, supply chain and operations.
• Own projects from shaping the initial problem through to deployment and measurable business impact.

Responsibilities

• Build and deploy machine learning and optimisation solutions for retail and consumer clients.
• Solve commercial problems across pricing, forecasting, supply chain and operations.
• Use Python and advanced analytics to turn complex datasets into actionable solutions.
• Work directly with stakeholders to define problems, KPIs and delivery priorities.
• Own projects from technical design through to implementation and measurable business impact.
• Lead technical delivery and support the development of junior Data Scientists.

Skills

Python

SQL

Machine Learning

Optimization

Databricks

Tools

Databricks

Job description

Do you want your data science work to have a measurable impact on revenue, margin and customer experience?

Do you enjoy solving complex pricing, forecasting and operational problems using machine learning?

Would you like to own solutions from initial client problem through to implementation and measurable impact?

A leading UK consultancy is scaling its dedicated AI & Data Science capability, with a major focus on Retail and Consumer Services. Their teams embed directly with large organisations to solve commercially important problems using data, AI and operational change. Previous work has included AI-powered markdown optimisation delivering a £40m revenue uplift and supplier cost modelling across 300 factories and 16 brands. This is an opportunity to join a growing capability where technical delivery and commercial impact carry equal weight.

You’ll lead hands-on Data Science projects across areas including pricing, forecasting, supply chain and operational optimisation, working directly with client stakeholders. You’ll have ownership from shaping the initial problem through to building, deploying and embedding solutions into business decision-making.

Key Responsibilities

• Build and deploy machine learning and optimisation solutions for retail and consumer clients
• Solve commercial problems across pricing, forecasting, supply chain and operations
• Use Python and advanced analytics to turn complex datasets into actionable solutions
• Work directly with stakeholders to define problems, KPIs and delivery priorities
• Own projects from technical design through to implementation and measurable business impact
• Lead technical delivery and support the development of junior Data Scientists
• Working model: 3+ days/week on client sites across the UK
• Tech stack: Python, SQL, ML, optimisation, Databricks and modern data tooling