Senior AI Data Scientist — Hybrid, Impactful Analytics

Lloyds Banking Group; West of England; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

30 days holiday

Generous pension

Flexible & hybrid work

Wellbeing support

Colleague benefits

Job summary

Lloyds Banking Group in Bristol is seeking a Senior AI Data Scientist to advance retrieval, semantic and agentic analytics. You will design rigorous experiments, build benchmarks, and deliver evidence-based recommendations to support enterprise adoption.

The role combines research with practical delivery, requiring Python, SQL and experience with large language models. You will collaborate with stakeholders to translate findings into scalable analytics solutions and contribute to the bank's

Qualifications

• Strong knowledge of retrieval methods, search strategies and RAG architectures.
• Understanding of large language model architectures, reasoning techniques and agentic systems.
• Experience designing evaluation frameworks and applying experimentation and statistical methods to assess outcomes.
• Strong SQL and data analysis skills, including experience with platforms such as BigQuery, Teradata or equivalent technologies.
• Research methodology expertise, including literature reviews and hypothesis-driven experimentation with the ability to interpret and apply research findings.
• Python development and AI prototyping skills.
• Knowledge of semantic layers and metrics modelling.
• Experience of ontologies, knowledge representation, taxonomy development and metadata design.
• Exposure to knowledge graphs, graph-based reasoning concepts, NL2SQL, Text-to-SQL, conversational analytics, dialogue with data approaches, or enterprise data architecture and data product concepts.

Responsibilities

• Designing and conducting research into retrieval, semantic and agentic approaches for analytical reasoning and decision support.
• Building benchmarks, evaluation frameworks and experimental methodologies to assess AI solutions objectively.
• Prototyping and evaluating AI capabilities using Python, data analysis and large language model technologies.
• Producing technical evaluations, comparative assessments and research outputs that inform technology decisions.
• Developing design patterns for conversational analytics and agentic analytics experiences.
• Collaborating with stakeholders to translate research findings into practical recommendations for enterprise adoption.

Skills

RAG architectures

LLM architectures

Experiment design

SQL data analysis

Research methods

Python prototyping

Tools

BigQuery

Teradata

Job description

Lloyds Banking Group in Bristol is seeking a Senior AI Data Scientist to advance retrieval, semantic and agentic analytics. You will design rigorous experiments, build benchmarks, and deliver evidence-based recommendations to support enterprise adoption.

The role combines research with practical delivery, requiring Python, SQL and experience with large language models. You will collaborate with stakeholders to translate findings into scalable analytics solutions and contribute to the bank's