Principal Designer (UI Design, Branding, Digital Product Design)

Principal Product Designer (UI Design &amp; Digital Product Design) £650 per day | Inside IR35<br />6-month contract<br />London – Hybrid (2 days per week onsite) Overview<br />We're looking for an exceptional Principal Product Designer to play a key role in building a large-scale digital platform from the ground up.

This is a rare greenfield opportunity to define the visual identity, interaction patterns and design standards for a suite of modern digital products.

Working closely with Product, Engineering and senior stakeholders, you'll create outstanding user experiences while establishing a scalable design system that will underpin the platform for years to come.

This role is ideal for a highly experienced designer with exceptional UI and interaction design skills, a strong portfolio of shipped products, and a passion for creating elegant, intuitive experiences at scale.

Role &amp; Responsibilities Own and evolve the visual design language across multiple digital products.<br />Create high-fidelity UI designs, interactive prototypes and detailed design specifications.<br />Lead the development and governance of a scalable design system, including reusable components, design tokens and documentation.<br />Define interaction patterns that deliver intuitive, accessible and consistent user experiences.<br />Work closely with engineers to ensure pixel-perfect implementation and design quality.<br />Translate complex business and technical requirements into simple, engaging interfaces.<br />Champion accessibility, usability and responsive design best practices.<br />Help shape design standards and establish UI governance across the wider organisation.<br />Skills &amp; Experience Significant experience as a Principal Product Designer, Product Designer, UI Designer, Interaction Designer or Design Systems Designer.<br />Outstanding portfolio demonstrating exceptional UI, visual and interaction design across complex digital products.<br />Proven experience building and scaling design systems, component libraries and reusable design patterns.<br />Expert-level proficiency with Figma and modern prototyping tools.<br />Strong understanding of accessibility (WCAG), responsive design and front-end implementation considerations.<br />Experience working closely with engineering teams throughout the full product lifecycle.<br />Excellent communication and stakeholder management skills, with the ability to influence both technical and non-technical audiences.<br />Desirable Experience Experience defining design system strategy within greenfield environments.<br />Working knowledge of HTML, CSS and modern front-end frameworks.<br />Experience designing enterprise-scale platforms and complex user journeys.<br />Background delivering products within regulated, public sector or highly governed environments.<br />Experience contributing to product strategy while remaining hands-on with design delivery.<br />Contract: 6 months<br />Rate: £650 per day (Inside IR35)<br />Location:

London (Hybrid – 2 days per week onsite)