Senior UI/UX Designer (Systems / Technical Environment)

Location: Portsmouth, HPH, GB

Employment Type: CONTRACTOR

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
• 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
• Accessibility awareness (e.g. WCAG principles)
• Human factors / ergonomics understanding
• Familiarity with engineering or operational platforms

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)
• Experience working with engineering or development teams
• Experience designing for constrained or technical systems
• Experience with prototyping tools (e.g. Figma, Adobe XD)
• Experience working with technical stakeholders or development teams

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

Benefits

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
• Competitive company benefits
• Always working as one team, our people are not afraid to think big and challenge the status quo 

 

• As a Disability Confident Committed Employer we have committed to:
• Ensure our recruitment process is inclusive and accessible
• Communicating and promoting vacancies
• Offering an interview to disabled people who meet the minimum criteria for the job
• Anticipating and providing reasonable adjustments as required
• Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people

“We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age”. 

 

We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive