Senior Data & AI Scientist

Senior Data & AI Scientist

Salary: £72,704 - £82,000 • Location: Leeds • Hours: Full time • Working Pattern: Hybrid – at least two days per week (or 40% of your time) in our Leeds office

At Lloyds Banking Group, our purpose is to help Britain prosper. In the Economic Crime Prevention (ECP) Platform Team, we play a vital role in protecting our customers and communities by preventing, detecting and responding to fraud and financial crime. The ECP Platform sits within Consumer Relationships and provides critical data and AI capabilities across the Group. Our work supports colleagues and customers at scale – analysing tens of millions of transactions every day to reduce harm and build trust.

About this opportunity

We’re looking for a Senior Data & AI Scientist to help shape and deliver advanced AI solutions across a wide range of Economic Crime Prevention use cases. You’ll apply modern techniques such as natural language processing, deep learning, graph‑based machine learning and generative AI to real‑world problems with tangible societal impact.

You’ll combine hands‑on technical expertise with leadership, guiding small teams and collaborating closely with data engineers, product partners and business team members to turn complex challenges into effective, production‑ready AI solutions.

What you’ll do

• Build, deploy and maintain machine‑learning models to detect and prevent fraud and financial crime
• Lead and support small teams developing AI products used by internal and external customers
• Work with large, diverse datasets to uncover insights and improve decision‑making
• Collaborate with data engineering teams in the Economic Crime Intelligence Lab to shape scalable, high‑quality data solutions
• Partner with team members to understand business problems and identify where data and AI can deliver the greatest value

What you’ll need

You’ll bring strong technical capability, curiosity and a genuine desire to protect customers. You’ll also be comfortable leading others and explaining sophisticated ideas clearly.

Essential experience

• A background in computer science, machine learning, mathematics or a similar field
• Experience building, deploying and maintaining NLP or deep‑learning systems
• Strong experience with at least one deep‑learning framework (for example PyTorch, TensorFlow or JAX)
• Confidence working within the scientific Python ecosystem (such as NumPy, Pandas, Scikit‑learn)
• Solid data‑engineering foundations and experience working with large‑scale data
• Strong communication and leadership skills, using empathy, clarity and challenge to help others perform at their best

You don’t need to meet every requirement to apply. If this role excites you and you feel you can make a difference, we’d love to hear from you.

It would be great if you also have

• Experience with libraries such as Hugging Face or PyTorch Geometric
• An understanding of MLOps and the end‑to‑end model lifecycle
• Experience deploying models behind APIs
• Exposure to cloud platforms, particularly Google Cloud Platform (GCP) and Vertex AI

About working for us

We’re committed to building an inclusive organisation where everyone feels they belong and can perform at their best – regardless of background, identity or life experience. We were one of the first major organisations to set targets for diversity in senior roles, and we continue to invest in initiatives that support wellbeing and inclusion, including menopause health support and our Working With Cancer programme. We particularly welcome applications from under‑represented groups. We’re also Disability Confident. If you need any reasonable adjustments during the recruitment process, just let us know.

What we offer

• A generous pension contribution of up to 15%
• An annual discretionary bonus, dependent on Group performance
• Share schemes, including free shares
• Flexible benefits to suit your lifestyle, including discounted shopping
• 30 days’ holiday plus bank holidays
• A wide range of wellbeing initiatives and generous parental‑leave policies

Ready to make an impact?

If you want to do work that’s intellectually challenging, socially meaningful and genuinely makes a difference to millions of people, we’d love to hear from you. Apply today and take the next step in your career with Lloyds Banking Group.

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