Senior UI/UX Designer (Systems / Technical Environment)

Overview:

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.

Responsibilities:

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

Qualifications:

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

Essential skills:

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

Desired skills:

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:

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)

What do I need before I apply:

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