Senior UI/UX Designer (Systems / Technical Environment)

The Senior UI/UX Designer will support the design and improvement of user interfaces for an existing client product undergoing a product refresh and update, focusing on usability, clarity, and practical implementation within a technical or constrained environment.

This is a hands on, delivery focused role, producing clear, usable interface designs and interaction models that development teams can implement efficiently within short timeframes.

The role is a short timescale, consultancy, prototype generation and documentation of agreed specifications. It is Outside IR35, and will require initial onsite presence but can be then taken offsite to deliver.

• Design and improve user interface layouts and workflows
• Produce wireframes, screen designs, and interface concepts
• Define user journeys and interaction flows
• Translate complex system functionality into clear, usable interfaces
• Apply usability and accessibility best practices
• Work closely with stakeholders to understand requirements and constraints
• Deliver design outputs suitable for development implementation
• Provide practical recommendations to improve usability and clarity
• Iterate designs based on feedback and technical constraints

• Degree (or equivalent experience) in UX, Human Factors, Design, Computer Science, or related discipline
• Proven experience in UI/UX design for software, systems, or technical products
• Experience working with engineering or development teams
• Ability to deliver design outputs in short, delivery focused engagements

• UI and interaction design
• UX design and user journey mapping
• Wireframing and interface layout design
• Usability principles and best practice application
• Strong stakeholder communication
• Ability to translate technical requirements into intuitive UI designs
• Practical, delivery focused design execution

• Accessibility awareness (e.g. WCAG principles)
• Human factors / ergonomics understanding
• Experience designing for constrained or technical systems
• Familiarity with engineering or operational platforms
• Experience with prototyping tools (e.g. Figma, Adobe XD)

• Experience designing UI/UX for complex or technical systems
• Strong experience simplifying complex workflows into usable interfaces
• Experience working within constrained or legacy environments
• Experience collaborating with engineering teams to deliver implementable designs
• Experience in defence, government, or regulated environments (desirable)

• A portfolio demonstrating practical UI/UX delivery (wireframes, flows, layouts)
• Evidence of working on real products or systems, not just conceptual design
• Examples showing simplification of complex user workflows
• Demonstrated ability to produce implementable designs within constraints
• Experience working with technical stakeholders or development teams