Senior Data Scientist, Lloyds
£70.9-80.8k
2 days a week in office
Retail and commercial bank
Be an early applicant
Retail and commercial bank
1001+ employees
Be an early applicant
£70.9-80.8k
2 days a week in office
1001+ employees
Company mission
To support families and businesses, helping them to take the next step, whatever that may be.
Role
Who you are
- Advanced proficiency in Python and SQL; hands‑on use of pandas, NumPy, scikit‑learn, PyTorch
- Strong knowledge of supervised/unsupervised learning; experience in NLP, anomaly detection, classification
- Experience across the full software development lifecycle, from experimentation through to deployment of containerised Machine Learning models to a live environment, using technologies such as Docker and Kubernetes and coding in Python
- Exposure to some GCP cloud tooling (e.g. Vertex AI, BigQuery) and visualisation tools such as Looker, Tableau or PowerBI is highly desirable
- Experience with API development, containerisation, and microservice patterns
- Familiarity with agentic architectures, multi‑step reasoning, and autonomous decision frameworks
- Ability to integrate LLMs and reinforcement learning into production workflows
- Expertise in interpretability and bias detection
- Delivery of audit‑ready solutions aligned to governance and compliance
- Practical experience with MLflow, Kubeflow, or similar MLOps frameworks; Git proficiency
- Skill in converting complex technical detail into clear business insight
Desirable
- Work with Vertex AI Agent Builder, LangGraph, multi‑agent orchestration, or agent‑to‑agent protocols
- Hands‑on LLM fine‑tuning, prompt engineering, and evaluation frameworks
- Design and analysis of A/B tests and other experimentation methods
- Knowledge of data governance and model risk management in regulated environments
- Experience with RLHF or similar approaches for continuous model improvement
- Ability to spot opportunities for agentic AI innovation and shape product roadmaps
What the job involves
- We have a great opportunity for a Senior Data Scientist to support developing next-generation agentic AI models!
- This role also involves traditional machine learning solutions that power critical business decisions.
- This role combines modern research with implementation, ensuring scalable, explainable, and robust AI systems across the organisation!
- You will design and implement next‑generation agentic AI and traditional ML that power critical decisions across the organisation!
- Architect agentic systems: multi‑step reasoning, autonomous decision‑making, and safe action flows
- Operationalise LLM solutions: evaluation, fine‑tuning, and prompt strategies with measurable outcomes
- Engineer APIs and containerised microservices for scalable ML; embed CI/CD, model versioning, and monitoring
- Assure interpretability, fairness, and audit readiness; meet compliance standards within the field
- Experiment using human‑feedback loops and A/B testing to iterate quickly and improve performance
- Translate complex concepts into actionable insights that influence product roadmaps powered by advanced technology
Application process
- End Date: January 5, 2026
Our take
Lloyds Bank, part of Lloyds Banking Group, began operations back in 1765 and is nowadays one of the UK’s leading retail and commercial banks. As with many leading banks, the company has dealt with its share of controversy – including for its handling of PPI complaints in 2015, and the 2009 European Commission ruling that forced it to part ways with TSB – but it has nonetheless stood the test of time and worked to build back its public reputation in the wake of these setbacks.
Of the company’s 26 million customers, over 18 million of them are online, making it the largest UK digital bank. As part of its ongoing digital transformation, the company is seeking to put the cloud at the front of its services and systems, and has cited intentions to invest heavily in overhauling its current technology infrastructure. All this seeks to serve the modern banking customer, and to compete with the fast-increasing number of alternative banking options appearing on the market.
Recently, Lloyds Bank has shown great interest in facilitating innovation in the industry, joining as a partner on FinTech Action Labs (a FinTech accelerator programme) to bring its industry expertise to early-stage FinTechs. As well as investment in digital transformation and AI, the company is enhancing its wealth product and corporate banking offerings, as well as expanding its partnerships with digital banking companies.
Steph
Company Specialist at Welcome to the Jungle
Insights
-1% employee growth in 12 months
Company
Company benefits
- Flex cash: This is 4% of your basic salary and can be used to spend on the benefits of your choice, or you can choose to take it as a cash top up in your monthly salary.
- A generous holiday allowance: You’ll be eligible for a minimum of 22 days holiday (excluding bank holidays), rising to 30 days based on length of service and grade.
- A flexible way of working: Whether you want flexibility over your location or when you log on, together we can create an approach that works for you and for the business.
- Family leave: Up to 63 weeks of maternity or adoption leave. Statutory maternity or adoption pay is available for 39 weeks, and 20 weeks will be enhanced to the equivalent of full pay. Partners can have six weeks of fully paid paternity leave.
- Health insurance: Our company funded Private Medical Benefit provides all colleagues with access to good quality medical care, including accommodation, nursing care and specialist advice.
- Colleague Offers: Get discounts on everything from electrical items to cinema tickets and weekly food shopping. You can share this benefit with up to ten family members or friends.
- Financial products: Take advantage of our great financial products, some at a discounted rate, including current accounts, home and car insurance and loans.
- Share plans: Participate in Sharematch and receive matching shares of up to £45 a month from the company, and you can choose to participate in Sharesave, our combined savings and share option plan.
- Pension: We offer a generous pension plan, with all joiners being automatically enrolled in our 'Your Tomorrow' scheme. You can decide how much you save and get a say in where your contributions are invested.
Company HQ
City of London, London, UK
Leadership
Charlie Nunn
(Group Chief Executive, not founder)Spent nine years at HSBC, including as Group Head of Wealth Management and Digital, and as CEO of Wealth and Personal Banking.
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