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UX/UI Engineer

Licensed sponsor London Contract Posted 4 days ago

There are 3 vacancies Junior, Mid and Senior)

Work mode: Hybrid

Number of days a week worked in the office: 3

Contract duration: 6months

Location: London

SHL and client assessment as KARAT part of the process

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JOB DETAILS

Role Title: UX UI Designer

Business area: Client Connectivity (Global Payments Solution Technology)

Responsibilities

  • Design and build UI using semantic HTML, CSS, vanilla JS and Web Components
  • Contribute to shared libraries/patterns and documentation (team-owned)
  • Apply and promote accessibility and web standards
  • Ship iteratively; participate in pairing/reviews and production support
  • Coaching/mentoring scope aligned to level (Junior/Mid/Senior)

Essential skills

  • Strong front-end fundamentals and evidence of UI judgement
  • Accessibility awareness and practical implementation capability
  • Comfortable consuming REST APIs; handles error/edge cases
  • Collaborative, team-first delivery approach

2.Junior Role

Role title: UX/UI Engineer (Hybrid) — Junior (Design Engineer) — Non Perm Locations: London Business area: Client Connectivity (Global Payments Solution Technology)

Responsibilities

  • Implement UI features using semantic HTML, CSS and vanilla JS with support
  • Contribute to Web Components and shared patterns in small, well-defined increments
  • Learn and apply accessibility practices as part of daily development
  • Participate in pairing, reviews, documentation, and production support
  • Deliver iteratively and incorporate feedback quickly

Essential skills

  • Working knowledge of HTML/CSS/JS fundamentals + strong learning mindset
  • Interest in UI/visual design and usability; can make sensible layout/hierarchy decisions
  • Accessibility awareness and willingness to learn quickly
  • Collaborative working style and comfort with feedback
  • Basic grasp of API-driven UI states (loading/error/empty), with support

3. Senior Role

  • Leads UI direction on complex features and sets a high bar for craft
  • Shapes shared patterns and drives adoption across teams (not “owns”, but leads by influence)
  • Coaches multiple engineers, runs workshops, and resolves tricky UI/a11y edge cases
  • Anticipates risks (usability, accessibility, maintainability) and drives pragmatic solutions

We’re hiring Hybrid UX/UI Engineers (Design Engineers) who can design sensible, usable user interfaces and ship them in production code. This is not a “Figma hand-off” role. You’ll use UI/visual design judgement and build with semantic HTML, modern CSS, vanilla JavaScript and Web Components.

You’ll work in a small delivery team (typically 4–6 people, with a dedicated Product Owner). We work in flow (not sprints), shipping small, frequent changes. Support is part of the role: the team builds it, the team supports it.

What you’ll do

  • 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 (all levels)

  • Strong fundamentals in HTML/CSS/JavaScript, responsive design, and cross-browser behaviour
  • 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)

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