Data Scientist

Lead Data Scientist

Fenchurch Avenue, London (Hybrid – 2 days in office)

Salary: Up to £68,000 + Excellent Benefits

We are partnering with a leading UK organisation within the rail sector to hire a Lead Data Scientist to join their growing Data Science & AI function. This is a fantastic opportunity to work on impactful, real-world AI and machine learning solutions that drive safety, efficiency, and sustainability at scale.

The Role

As a Lead Data Scientist, you will act as a senior technical expert, leading the end-to-end delivery of data science and AI solutions—from concept and prototyping through to production. You will collaborate closely with data engineers, developers, and business stakeholders to build scalable, production-ready solutions, while also mentoring junior team members and contributing to best practices across the function.

Key Responsibilities

• Lead the delivery of machine learning and AI projects end-to-end (concept → POC → production)
• Design, develop, and deploy scalable data science solutions aligned to business needs
• Work closely with engineers and product teams to integrate models into pipelines and platforms
• Translate complex business problems into practical analytical solutions
• Ensure best practices in coding, testing, documentation, and model governance
• Communicate insights clearly to both technical and non-technical stakeholders
• Mentor and support junior data scientists
• Contribute to a collaborative, innovative, and high-performing team environment

Key Requirements

• Strong experience delivering end-to-end data science / ML solutions in production environments
• Advanced Python skills with solid coding standards (testing, version control, clean code)
• Experience working with cloud platforms (Azure preferred)
• Hands-on experience with LLMs / Generative AI applications
• Experience building and deploying scalable solutions (CI/CD, pipelines, workflows)
• Strong stakeholder management and communication skills
• Experience working in Agile environments
• Ability to manage multiple priorities and deliver high-quality outputs

Tech Environment

• Python
• Azure ecosystem
• Databricks
• Airflow
• DevOps / Git / CI/CD pipelines
• Data lakes and modern data platforms

What You’ll Be Working On

• AI-driven applications (e.g., chatbots, knowledge search tools)
• LLM-based solutions for querying structured and unstructured data
• Automation of manual, data-heavy processes
• Building AI capabilities into digital platforms and workflows

What’s on Offer

• Salary up to £68,000
• Hybrid working (2 days in office, flexible approach)
• Strong work/life balance and a mature, trust-based culture
• 30 days annual leave + bank holidays
• Holiday buy & sell scheme
• Private medical and dental cover
• Travel subsidy & season ticket loan
• Cycle to work scheme
• Volunteer leave
• Performance-related bonus
• Pension

Additional Information

• Commitment to learning and development through formal and informal opportunities
• Inclusive and diverse workplace with equal opportunities for all
• Supportive and flexible working environment, with options to discuss further flexibility at interview stage
• Reasonable adjustments available throughout the recruitment process

If you’re a hands-on data science leader who enjoys solving real-world problems and working with modern AI technologies, we’d love to hear from you.