UI/ UX Designer

Vallum Associates; Greater London; Hybrid; GBP 50,000 - 80,000; Full time

Job summary

Vallum Associates is seeking a frontend UI Engineer to translate business requirements into deliverable UI work and ship iteratively to production.

You will design accessible, responsive interfaces using semantic HTML, CSS, vanilla JavaScript and Web Components, contributing to shared libraries and documentation to ensure consistent adoption across projects.

Qualifications

• Proficient in semantic HTML and maintainable CSS.
• Practical accessibility implementation across keyboard navigation, focus management, labeling and ARIA where appropriate.
• Ability to explain UI trade-offs clearly and justify design decisions.
• Comfortable consuming RESTful APIs and handling auth/error/edge cases in UI.

Responsibilities

• Turn business requirements into deliverable UI work (stories/tasks), shipping iteratively to production.
• Design UI solutions (layout, hierarchy, interaction patterns, error/empty/loading states).
• Build accessible UI using semantic HTML, CSS, vanilla JS and Web Components.
• Contribute to shared UI libraries/patterns and documentation to drive consistent adoption.
• Champion standards: semantic HTML, accessibility, UI patterns; raise capability via pairing, reviews, workshops and documentation.
• Identify and address technical debt alongside delivery.
• Participate in production support and continuous improvement.

Skills

semantic HTML

CSS

accessibility

UI design judgement

RESTful APIs

collaboration

Web Components

vanilla JS

Tools

Web Components

Vanilla JS

Job description

Mode of work: Hybrid - 2-3 days onsite in a week

JD:

Responsibilities:

• Turn business requirements into deliverable UI work (stories/tasks), shipping iteratively to production
• Design UI solutions (layout, hierarchy, interaction patterns, error/empty/loading states) that meet user needs
• Build accessible UI using semantic HTML, CSS, vanilla JS and Web Components
• Contribute to shared UI libraries/patterns and the documentation that drives consistent adoption (everyone owns the libraries)
• Champion standards: semantic HTML, accessibility, UI patterns; raise capability via pairing, reviews, workshops and documentation
• Identify and address technical debt alongside delivery
• Participate in production support and continuous improvement

Essential skills :

• Consistent use of semantic HTML and pragmatic, maintainable CSS
• Practical accessibility implementation (keyboard navigation, focus management, labelling, headings/landmarks; sensible ARIA; WCAG principles preferred)
• UI/visual design judgement and the ability to explain trade-offs clearly
• Comfortable consuming RESTful APIs and handling auth/error/edge cases in UI
• Collaborative working style (pairing, constructive reviews, open communication)