Overview

TRIA City Of London, England, United Kingdom — Senior UX Designer

We’re partnering with a major UK organisation to recruit a Senior UX Designer who will play a hands-on role in designing intuitive, user-centred digital products and services. This is a business where UX isn’t just a function — it’s embedded in how products are imagined, tested, and delivered. You’ll join a collaborative and cross-functional UX team, working closely with service designers, researchers, product managers, and engineers to shape experiences that make a real difference to customers’ lives.

This role is based in London, United Kingdom.

The Role

• Design end-to-end user journeys across web and native platforms.
• Partner with service designers to ensure solutions align with the wider customer journey.
• Generate and refine design ideas that solve real customer and business problems.
• Produce prototypes and high-fidelity designs to test with users and gain stakeholder buy-in.
• Collaborate with engineers and product managers to ensure delivery matches design intent.
• Define and measure success criteria for design solutions, reporting outcomes from a UX perspective.
• Contribute to the design system, creating and refining reusable components and patterns.
• Apply behavioural design principles to guide and support customer decision-making in an ethical and transparent way.
• Translate complex services into clear, supportive journeys that reduce friction and build confidence.
• Share best practices, mentor junior designers, and actively contribute to design critiques.

About You

• Proven experience as a UX or Product Designer, ideally within cross-functional product teams.
• Strong portfolio demonstrating end-to-end design skills across web and mobile.
• Skilled in prototyping, usability testing, and applying evidence to refine designs.
• Confident working with service designers, engineers, and product managers to deliver joined-up solutions.
• Knowledge of behavioural design principles and how to apply them responsibly.
• Familiarity with accessibility standards (e.g. WCAG 2.2) and inclusive design practices.
• Naturally collaborative, with strong communication and problem-solving skills.
• Passionate about continuous learning, improvement, and sharing knowledge with others.

Why Apply?

• Competitive salary + annual bonus
• 28 days holiday + buy/sell option
• Private Medical Insurance
• Electric/Hybrid car schemes, Cycle to Work, life assurance
• Full wellbeing and healthcare support
• Generous family leave policies