Barclays logo

QA Risk AI/ML

Barclays London, England, United Kingdom

onsitefull-time
Posted Feb 25, 2026Apply by Mar 5, 2026

Role & seniority: Assistant Vice President, Quant AI/ML Model Developer (AVP; potential for team leadership and cross-functional impact)

Stack/tools: Python; AI/ML modeling (including generative AI); large language models; prompt engineering; RAG pipelines; vector databases; platforms such as Bedrock

Top 3 responsibilities

  • Design, develop, and operationalize analytics, models, and AI solutions to solve complex business problems; document and validate efficacy

  • Collaborate with technology to specify dependencies (data, environments, tools) and ensure robust, tested deployments; provide ongoing support

  • Advise, influence decision-making, and, if applicable, lead a team; contribute to risk governance, policy development, and cross-functional initiatives

Must-have skills

  • Proficiency in Python and implementing AI/ML models (including generative AI)

  • Experience with LLMs, prompt engineering, RAG pipelines, and vector databases

  • Relevant quantitative degree (e.g., computer science, maths, physics); strong ability to communicate complex concepts to stakeholders

  • Understanding GenAI landscape and platforms (e.g., Bedrock); familiarity with financial services or banking environment is valued

Nice-to-haves

  • Direct banking/financial services experience

  • Additional risk, controls, or governance experience; ability to navigate regulatory environments

  • Location & work type: London, UK; full-time role (location specified; type not explicitly stated

Full Description

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. Build the next generation of AI‑driven risk solutions at Barclays. This is a rare opportunity to join a new Quant AI/ML team within QA, focused on developing cutting‑edge generative AI applications that will transform how risk and finance functions operate. You’ll work on high‑impact projects—from payment systems to credit and finance use cases—while shaping the bank’s approach to large language models, vector databases, and next‑generation AI tooling. If you’re excited by innovation, hands‑on model development, and the chance to influence a greenfield capability, this role offers an exceptional platform to grow. To be successful as a Quant AI / ML Model Developer, you should have experience with: Python programming and implementing AI/ML models, ideally including generative AI. Working with large language models, prompt engineering, RAG pipelines, or vector databases. Applying quantitative or technical skills gained through a relevant degree (e.g., computer science, maths, physics). Some other highly valued skills may include: Understanding of the GenAI landscape, including model options, implementation details, and platforms such as Bedrock. Familiarity with financial services or experience working in a banking environment. Strong communication skills to simplify complex technical concepts for diverse stakeholders. You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills Location: London Our Work Experience is the combination of everything that's unique about us: our culture, our core values, our company meetings, our commitment to sustainability, our recognition programs, but most importantly, it's our people. Our employees are self-disciplined, hard working, curious, trustworthy, humble, and truthful. They make choices according to what is best for the team, they live for opportunities to collaborate and make a difference, and they make us the #1 Top Workplace in the area.

Python ProgrammingAI/ML ModelingGenerative AILarge Language ModelsPrompt EngineeringRAG PipelinesVector DatabasesQuantitative SkillsStatistical ModelingRisk ManagementModel Risk PolicySoftware DevelopmentData AnalysisStakeholder InfluenceControl EnvironmentModel Validationmulti-location

Cookies & analytics consent

We serve candidates globally, so we only activate Google Tag Manager and other analytics after you opt in. This keeps us aligned with GDPR/UK DPA, ePrivacy, LGPD, and similar rules. Essential features still run without analytics cookies.

Read how we use data in our Privacy Policy and Terms of Service.