Data Scientist - Security Data & AI Lab

In this role, you will apply data science and machine learning to detect, mitigate and prevent threats within a data-rich banking environment. You will collaborate across data engineering, DevOps, and security specialists to deliver end-to-end solutions. You’ll translate business problems into data-driven approaches, integrate models into existing systems, and help grow security domain knowledge. This is a chance to shape how data science supports safeguarding customers, colleagues, and assets at Lloyds Banking Group.

• up to 15% pension contribution
• annual performance-related bonus
• share schemes including free shares
• discounted shopping
• 28 days’ holiday + bank holidays
• wellbeing initiatives and parental leave

• Collaborate with data engineers, DevOps, and domain experts to deliver security-focused data science solutions
• Translate business problems into data science requirements and deliverables
• Integrate models using MLOps and ensure explainability for actionable insights
• Grow security domain knowledge and maintain both traditional and agentic ML systems
• Present data science concepts and results to audiences with varying levels of technical familiarity
• Participate in team planning and ceremonies, manage priorities and external dependencies

• Experience delivering data science or analytics projects from problem definition to implementation with measurable business impact
• Solid understanding of machine learning and statistics, with emphasis on unsupervised models
• Knowledge of foundational model systems and agent-building frameworks
• Proficiency in Python and libraries such as pandas, scikit-learn, NumPy, plus visualization tools
• Strong SQL skills and experience querying large datasets; familiarity with BigQuery or Snowflake
• Effective communication to both technical and non-technical audiences
• Working knowledge of cloud platforms and infrastructure
• Strong problem-solving skills and a structured approach to data-driven solutions
• Curious and innovative mindset, staying current with industry developments

• effective communication
• collaboration
• problem-solving
• Python
• pandas
• scikit-learn