Tristan Clarkson

• Lead standards, review, ways of working and the route from design into engineering across the design practice.
• Established a suitability route used before an AI feature is designed, so the choice of model is assessed and recorded.
• Defined interaction guidance for uncertainty, escalation, reversibility and thresholds for acting on a person's behalf.
• Specified accessibility requirements for conversational and generated experiences against WCAG 2.2 AA.
• Designed reusable AI patterns and states, including citation, caveat and human-handoff behaviour.
• Use coded and AI-assisted prototypes to test latency, streaming, failure, keyboard and screen-reader behaviour.
• Support design-system quality, design-to-code parity and defect learning across product and engineering.

Read the case study

• Led UX and UI design for operationally and regulatorily constrained digital products.
• Designed information architecture and interactions for data-heavy workflows.
• Used prototypes to test proposals and support implementation with product and engineering teams.
• Worked with senior stakeholders to balance usability, scalability and commercial constraints.

• Designed Luna end to end, including dashboard, Self Assessment, VAT, documents, transactions and advances.
• Framed the risk that compliant digitisation could exclude customers with lower digital confidence.
• Structured the product around status and single actions rather than tax literacy.
• Created the visual identity and UI system, then built the front-end implementation alongside the design.

Read the case study