Senior UX/UI Designer

Company: leighton
Apply for the Senior UX/UI Designer
Location: Newcastle upon Tyne
Job Description:

The Role

Please note this position will require 2 days per week on site in London.

UX/UI Designer

User Research & Insight

  • Use a range of research, testing and validation techniques to shape concepts and improve designs from the earliest stages.
  • Work alongside researchers and wider product teams to turn customer feedback, research findings and behavioural insight into clear design opportunities.
  • Test assumptions and hypotheses throughout the design process, ensuring decisions are grounded in evidence rather than opinion.
  • Combine qualitative research with product data and customer behaviour to understand pain points and identify areas for improvement.

UX & Product Design

  • Own the design of end-to-end digital experiences, considering the complete customer journey rather than individual screens or features.
  • Translate complex requirements into clear user journeys, information architecture, wireframes, interaction models and user flows.
  • Take ideas from early concepts and sketches through to well-defined, intuitive digital experiences.
  • Design with the wider ecosystem in mind, understanding how individual journeys connect across different products, services and digital channels.
  • Work closely with Product, Research and Engineering teams to balance user needs, commercial priorities and technical feasibility.
  • Use research insights, behavioural trends and product performance data to guide design decisions and prioritisation.
  • Partner with Product Managers and Product Owners to identify opportunities, influence product direction and establish measures of success.
  • Ensure experiences meet appropriate accessibility, usability and inclusive design standards.

UI Design & Prototyping

  • Create high-fidelity interface designs and interactive prototypes in Figma, turning UX concepts into polished digital experiences.
  • Use prototypes to explore different approaches, communicate interaction behaviour and test ideas before development.
  • Design responsive experiences for web and mobile, considering different screen sizes, devices, platforms and accessibility needs.
  • Refine designs through an iterative process, incorporating user testing, stakeholder input and feedback from development teams.
  • Create and apply reusable components, interaction patterns and design standards that improve consistency across products.
  • Contribute to the continued development and adoption of design systems and component libraries.
  • Work closely with developers to make sure designs are practical to implement and that the finished product reflects the intended experience.
  • Champion strong standards across visual design, interaction design, accessibility and overall design quality.

Collaboration & Ways of Working

  • Work as part of a cross-functional product team, partnering closely with Product, Engineering, Research and other Design specialists.
  • Clearly communicate design thinking and rationale, using research, customer insight and data to support recommendations.
  • Facilitate collaborative sessions and design discussions to explore problems, generate ideas and build alignment.
  • Contribute throughout the product lifecycle, from discovery and problem definition through to design, validation and delivery.
  • Help create a consistent customer experience across products by championing shared design principles, patterns and ways of working.

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Posted: September 30th, 2026