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LOCATION:Edinburgh, Leeds, Manchester & Bristol
HOURS:Full time
WORKING PATTERN:Hybrid, 40% (or two days) in an office site
About this opportunity
At Lloyds Banking Group, we’re moving to the next stages of our digital transformation. It’s our job within the Chief Security Office (CSO) to ensure that we keep our customers, colleagues, and assets safe from threats. The CSO’s Security Data Services lab offers an excellent opportunity for an experienced and dynamic Lead Data Scientist to work with our Analytics and Data Management feature teams.
This role involves redefining how we detect, mitigate, and prevent cyber threats using sophisticated AI and machine learning. It’s a rare opportunity to shape the future of cybersecurity in one of the UK’s most data-rich environments.
What you’ll do
* Lead the design, development, and deployment of behavioural anomaly detection models using unsupervised learning, deep learning (e.g., auto-encoders), and novelty detection techniques.
* Lead a team of Data Scientists.
* Drive innovation in LLM-based security automation, including prompt engineering, RAG pipelines, and model fine-tuning.
* Collaborate with Data Engineers to build scalable, secure, and production-ready ML pipelines on GCP.
* Partner with cyber defence, risk, and compliance teams to ensure models are explainable, ethical, and compliant with standards like SOC2, SWIFT, and SOX.
* Mentor junior data scientists and contribute to the Data Science Community of Practice.
* Translate data insights into actionable intelligence for stakeholders across the Group COO and CSO functions.
Why Lloyds Banking Group
We’re on an exciting journey to transform our Group and shape the future of finance for good. We invest in our technologies, workplaces, and colleagues to make our Group a great place for everyone, including you.
What you’ll need
* Proven experience leading data science projects in cybersecurity, fraud, or behavioural analytics.
* Deep expertise in Python, ML frameworks (e.g., TensorFlow, PyTorch), and cloud platforms (preferably GCP).
* Strong knowledge of anomaly detection, time-series modelling, and deep learning architectures.
* Experience with LLMs and generative AI in production is highly desirable.
* A passion for ethical AI, model governance, and secure ML operations.
* Excellent communication and customer engagement skills.
* An innovative mindset and awareness of latest trends in data engineering and cybersecurity.
Additional useful experience
* Understanding emerging threats within Cyber Security.
About working for us
We support diversity, equity, and inclusion, creating an environment where everyone can thrive, learn, and develop. We offer flexible working arrangements, reasonable adjustments for disabilities, and guarantee interviews for qualifying applicants with disabilities through the Disability Confident Scheme.
Benefits include
* Up to 15% pension contribution.
* Annual performance bonus.
* Share schemes including free shares.
* Flexible benefits such as shopping discounts.
* 30 days’ holiday plus bank holidays.
* Wellbeing initiatives and parental leave policies.
Join us to do impactful work that makes a difference to millions.
At Lloyds Banking Group, our purpose is to help Britain prosper. Join us to shape the future of financial services, with many opportunities to learn, grow, and develop.
We prioritize your data safety. Confidential information is only requested during formal interviews or after accepting an offer, with clear explanations provided.
We are committed to an inclusive, values-led culture reflecting the diversity of our communities, where everyone can make a difference.
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