Capital on Tap is hiring an AI Product Engineer for its London team. The position is hybrid, with the AI team working from the company's Moorgate office two days each week. The work centres on agentic systems, orchestration layers, and the internal AI on Tap enablement hub.
The engineer builds tools that help engineering and product teams deliver financial products and services. Capital on Tap serves small and medium-sized businesses through a business credit card, spend management, savings, and related products. C# and .NET experience, unit and integration testing, and hands-on work with agentic systems are required. The role also calls for initiative ownership across engineering teams and a focus on measurable results.
Role: AI Product EngineerEmployer: Capital on TapLocation: Moorgate, London, United KingdomWork arrangement: Hybrid, with two office days each week
AI On Tap And Agentic Systems
The AI Product Engineer works on software that connects model capabilities to product workflows. Agentic systems coordinate models, tools, and verification steps so that software can complete defined tasks through a controlled sequence.
The internal AI on Tap hub supports engineering and product teams with shared AI enablement. The position also evaluates whether an in-house capability or an external product meets a delivery need, while keeping technical debt and delivery tooling under control.
The core work includes:
- Building agentic systems and orchestration layers.
- Developing the internal AI on Tap enablement hub.
- Integrating agentic testing and verification with QA and Platform.
- Leading build-versus-buy evaluations and adoption decisions.
- Improving technical debt and CI/CD practices.
C#/.NET Engineering And Testing
C# and .NET are the main application skills named for the role. Unit and integration testing experience supports the engineering work, while agentic systems experience connects the software background to the team's AI focus.
Across the profession, AI engineering roles combine software delivery with model development, prototype testing, data analysis, defect fixing, and risk assessment; those duties appear in the National Careers Service profile. The Capital on Tap position adds initiative ownership across engineering teams and a requirement to measure the results of that work.
London Product And Engineering Workflows
The position sits between software engineering, product delivery, and AI enablement. The London engineering group works across team boundaries, so the role carries initiatives from technical evaluation into adoption and ongoing improvement.
QA, Platform, Engineering, and Product functions each contribute to the delivery chain. Production changes require test coverage, verification, deployment discipline, and attention to technical debt before teams depend on them in customer-facing products.
Production AI work also includes pre-deployment testing, live monitoring, data-protection review, and human intervention for high-risk decisions, controls described in the UK government AI playbook. Those practices give the engineer concrete areas for collaboration with platform, quality, security, and product colleagues.
Capital On Tap's Financial Platform
Capital on Tap provides a business credit card, small and medium-sized business spend management, savings, and related financial products. The company has more than 1,000 employees, annual card spend above £20 billion, and more than 200,000 customers. The business is profitable.
Benefits
- private healthcare
- worldwide travel insurance
- pension salary-sacrifice scheme with up to a 7% employer match
- 28 days of holiday plus bank holidays
- enhanced parental leave
- electric-vehicle salary-sacrifice scheme
- learning and wellbeing budget
- season-ticket loan
- six free therapy sessions each year
Capital on Tap aims to respond within three working days after an application, with busy periods extending that window to five working days.
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