Senior User Interface Designer

We are looking for a Senior UI Designer to join one of our clients' teams.

Location: Mainly Brussels, with 50% of remote working

Start Date: ASAP

Duration: Until December 2025

Workload: 50% part-time

Extension: Likely beyond 2025

What are your responsibilities?

• Design wireframes, interactive prototypes, and final UI screens using Figma, aligned with an existing design system.
• Present and explain design concepts to various internal stakeholders.
• Collaborate closely with UX researchers, developers, and product owners to turn user needs into effective solutions.
• Organize and lead ideation and co-creation workshops.
• Define interaction models, evaluate them, and iterate based on feedback.
• Create user flows, storyboards, sitemaps, and other visual documentation.
• Actively contribute to UX team rituals: design reviews, documentation, and knowledge sharing.

Who are we Looking For?

• 7+ years of experience in UI or interaction design, ideally in Agile environments.
• Strong expertise in Figma and Miro.
• Solid knowledge of design systems, visual design principles, and accessibility standards.
• Experience working in complex ecosystems or on legacy system migrations is a plus.
• Able to prototype, document, and clearly communicate design decisions.
• Familiarity with HTML/CSS (no coding required, but understanding is appreciated).
• Fluent in English (French, Dutch, or German is a plus).
• A portfolio is mandatory.