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"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away."

— Antoine de Saint-ExupĂ©ry

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Senior UX & Product Designer

Smile đŸ‡±đŸ‡ș Differdange, Canton Esch-sur-Alzette, Luxembourg

Full-time Senior

Design exceptional user experiences and lead the product vision within an agile environment for a major partner. Responsibilities include managing the end-to-end design process, enriching the design system, and conducting user research to iterate on innovative solutions.

Responsibilities

  • Drive the complete design process with a user‑centered focus
  • Enrich and maintain the existing Design System, creating and adapting components for visual consistency
  • Conduct qualitative and quantitative user research and usability testing to gather insights
  • Design fluid, responsive interfaces across multiple platforms and screen sizes
  • Collaborate closely with Product Owners, business stakeholders and development teams to translate needs into innovative design solutions

Requirements

  • Degree in Human‑Computer Interaction, digital design or equivalent
  • 3–4 years of experience as a UX/Product Designer
  • Strong portfolio showing engaging user experiences
  • Full mastery of the UX design process: research, ideation, high‑fidelity prototyping and validation
  • Expertise with modern design tools, especially Figma
  • Experience designing complex web software applications
  • Facilitation of collaborative workshops and Design Thinking methods
  • Team‑player mindset with agile orientation
  • Proactive, autonomous and knowledge‑sharing attitude
  • Fluent English; French is a strong asset

Benefits

  • Proximity management and peer mentoring
  • Access to a comprehensive e‑learning platform
  • Funding for certifications and continuous education
  • Knowledge‑sharing tools and a culture of collaboration

Key Skills

User research (qualitative & quantitative) Usability testing Design systems Figma Wireframing High‑fidelity prototyping Interaction design Responsive design Design Thinking Agile methodology Workshop facilitation Cross‑functional collaboration Communication Stakeholder management English fluency French (optional)

About Smile

We are Technology experts & Business partners. AI powered. Enabling digital autonomy. Smile is a European digital services group operating in 7 countries and bringing together 1,500 people. Our value proposition is built around three accelerators across all our areas of expertise: - Digital Autonomy : we provide solutions built on open source or European sovereign software, designed to keep full control over data, infrastructure and technology choices. - Agentic AI : native and integrated from day one, in every project, every team, every method, it accelerates transformation, optimises operations and unlocks new sources of business value. It is the backbone of everything we deliver. - The Factory : our factories bring together multidisciplinary teams, experienced in agile methods, capable of delivering exactly what they have promised. We operate across five domains: AI & Data, Customer Experience, Business Applications, Cloud Transformation & Management and Product & Industrial Sy

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