User Interface Designer

Job Description – UI/UX Designer (Senior)

Job Title: UI/UX Designer

Work Location: Montagne du Parc 3, 1000 Brussels

Start Date: 20/10/2025

End Date: 30/04/2026

Responsibilities

As a UI/UX Designer, you will:

• Translate concept designs into user flows and screen states with intuitive and visually appealing interfaces.
• Gather input from stakeholders on user needs and technical feasibility.
• Apply best-in-class design practices, inspired by both financial and non-financial sectors.
• Ensure intuitive information hierarchy and usability at screen level.
• Design high-fidelity mockups and prototypes.
• Incorporate feedback from usability testing.
• Collaborate with a dedicated UX copywriter for content integration.
• Actively contribute to the design system (mobile-first, native & web).
• Participate in the UX UI Community of Practice (COP UXUI) to share best practices, co-create patterns, and enhance standards.
• Support concept designers during ideation and lead refinement phases.
• Deliver pixel-perfect prototypes to development squads and follow up on implementation.

Required Skills & Competencies

Technical / Craft Skills

• Strong Mobile-First mindset with experience in mobile native design.
• Knowledge of Material Design and Human Interface Guidelines.
• Familiarity with Agile methodologies and Scrum practices.
• Accessibility expertise, including WCAG guidelines and their impact on design.
• Proficiency in design tools (Figma, Zeplin, etc.).
• Experience working with design systems (consuming, creating, and improving components).
• Understanding of the technical impact of designs; front-end development knowledge is a plus.
• Strong documentation skills for handover to developers and researchers.

Languages

• French or Dutch: C1 level (proficient, ideally native).
• English: B1/B2 level (good spoken and written proficiency).