AI Engineer

Job Description

Purpose of the role

To design, develop, implement, and support mathematical, statistical, and machine learning models and analytics used in business decision-making

Accountabilities

• Design analytics and modelling solutions to complex business problems using domain expertise.
• Collaboration with technology to specify any dependencies required for analytical solutions, such as data, development environments and tools.
• Development of high performing, comprehensively documented analytics and modelling solutions, demonstrating their efficacy to business users and independent validation teams.
• Implementation of analytics and models in accurate, stable, well-tested software and work with technology to operationalise them.
• Provision of ongoing support for the continued effectiveness of analytics and modelling solutions to users.
• Demonstrate conformance to all Barclays Enterprise Risk Management Policies, particularly Model Risk Policy.
• Ensure all development activities are undertaken within the defined control environment.

Assistant Vice President Expectations

• To advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness. Collaborate closely with other functions/ business divisions.
• Lead a team performing complex tasks, using well developed professional knowledge and skills to deliver on work that impacts the whole business function. Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes
• If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.
• OR for an individual contributor, they will lead collaborative assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will identify new directions for assignments and/ or projects, identifying a combination of cross functional methodologies or practices to meet required outcomes.
• Consult on complex issues; providing advice to People Leaders to support the resolution of escalated issues.
• Identify ways to mitigate risk and developing new policies/procedures in support of the control and governance agenda.
• Take ownership for managing risk and strengthening controls in relation to the work done.
• Perform work that is closely related to that of other areas, which requires understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.
• Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategy.
• Engage in complex analysis of data from multiple sources of information, internal and external sources such as procedures and practises (in other areas, teams, companies, etc).to solve problems creatively and effectively.
• Communicate complex information. 'Complex' information could include sensitive information or information that is difficult to communicate because of its content or its audience.
• Influence or convince stakeholders to achieve outcomes.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

We are seeking a skilled AI Engineer at Barclays to develop and implement machine learning and AI solutions that strengthen our ability to detect financial crime, prevent fraud, and safeguard our customers.

Working closely with data scientists, engineers, and senior technical colleagues, you will contribute to scalable ML pipelines, agentic AI systems, production-grade model code, and robust monitoring solutions. You will support delivery across the AI/ML lifecycle—from data exploration and model development through to deployment and monitoring—while working within established governance, documentation, and regulatory standards.

To be successful as an AI Engineer, you must have the following essential skills:

• Strong experience developing scalable, modular, and maintainable Python applications
• Experience developing and deploying well-tested Generative AI applications, using relevant frameworks such as LangGraph/LangChain, Strands SDK, Anthropic SDK, AWS Bedrock, or CrewAI
• Experience in machine learning development, including training, evaluating, deploying, and monitoring models
• Experience with deep learning or NLP frameworks, such as PyTorch or Hugging Face
• Good understanding of software engineering principles, design patterns, and ML lifecycle practices, including MLOps or LLMOps
• Experience contributing to the delivery of AI or ML projects and working effectively with technical and business stakeholders

Some other highly valued skills may include:

• Experience supporting or mentoring colleagues within machine learning engineering or software development teams
• Experience with cloud platforms such as AWS, Azure, or GCP, or ML platforms such as Databricks
• Exposure to evaluating LLM-based applications, including AI-as-a-judge approaches
• Experience with Generative AI techniques such as retrieval-augmented generation, fine-tuning, or prompt engineering
• Exposure to distributed data processing frameworks, such as Spark
• Exposure to fraud detection, anti-money laundering, anomaly detection, or graph and network-based modelling
• Awareness of model risk management, governance, and regulatory controls within financial services

You may be assessed on the key critical skills relevant for success in the role, such as risk and controls, change and transformation, business acumen, strategic thinking, and digital and technology, as well as job-specific technical skills.

This role will be located at our Glasgow office, with a hybrid working model requiring a minimum of 3 days per week in the office.