Lead Data Scientist

JR United Kingdom; Hemel Hempstead; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading UK company seeks a Lead Data Scientist to join their digital team, focusing on delivering data science solutions that enhance the hospitality client's success. The ideal candidate will have extensive experience in data science, strong technical skills in Python and SQL, and an ability to lead teams and collaborate effectively across functions.

Qualifications

• 5+ years' experience in data science roles, ideally in multi-brand environments.
• Proven expertise in Python, SQL, and statistical modelling.
• Experience leading and developing data science teams.

Responsibilities

• Own and deliver the Data Science roadmap aligning with business goals.
• Develop and deploy data science solutions including predictive models.
• Lead and mentor a team of junior data scientists.

Skills

Python

SQL

Statistical modelling

A/B testing

Data visualisation

Stakeholder management

Communication

Tools

Power BI

Looker

Cloud platforms

Job description

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Halian Technologies is looking for a Lead Data Scientist to join our client’s digital team, supporting their journey to becoming a data-driven leader in the hospitality sector. This role involves owning and delivering the data science roadmap and building advanced AI/ML solutions that generate measurable business value. Experience in fast-paced, multi-brand environments and strong stakeholder management skills are essential.

You’ll be joining a forward-thinking organisation with deep heritage and a passion for innovation, working alongside cross-functional teams to deliver transformative insights and drive data maturity.

Key Responsibilities:

• Own and deliver the Data Science roadmap, aligning with business goals and digital strategy.
• Develop and deploy data science solutions including predictive models, customer segmentation, and AI/ML decision engines.
• Manage and enhance the data science environment and tooling for scalability and efficiency.
• Monitor and maintain the accuracy and effectiveness of deployed models.
• Collaborate with Product, CRM, IT, and Finance teams to embed data science solutions across the business.
• Translate complex data science outputs into clear, actionable business insights.
• Lead and mentor a team of junior data scientists to ensure high-quality delivery and professional growth.
• Act as a data steward, improving data quality across digital platforms.

Key Skills & Experience:

• 5+ years’ experience in data science roles, preferably within fast-moving, multi-brand industries.
• Expert in Python and SQL with strong statistical modelling skills.
• Proficient in A/B testing, significance testing, and data visualisation tools such as Power BI or Looker.
• Strong stakeholder management and communication skills, able to translate technical concepts for non-specialists.
• Experience leading and developing data science teams.
• Familiarity with cloud platforms and modern data science environments is advantageous.

Apply now to join a pioneering digital team delivering cutting-edge data science solutions that transform hospitality experiences.