UI DESIGNER H/F

📍 Job Overview

Job Title: UI DESIGNER H/F

Company: Smile Group

Location: Differdange, Luxembourg

Job Type: FULL_TIME

Category: Design & User Experience

Date Posted: 2026-03-30T12:53:06

Experience Level: Mid-Level (2-5 years)

Remote Status: Hybrid

🚀 Role Summary

• Design high-fidelity, user-centered interfaces that align with product vision and business objectives.

• Collaborate closely with the brand content design team, specifically integrating aspects of Retail Media into user experience.

• Facilitate workshops and ideation sessions to drive product development and stakeholder alignment.

• Champion the importance of UI Design and User Research, evangelizing Design Thinking principles across projects.

• Contribute to the continuous improvement of UX maturity and the overall design process within the organization.

📝 Enhancement Note: This role, while primarily UI Design, emphasizes a strong integration of UX principles and a supportive role to UX Researchers. The hybrid work arrangement suggests a balance between in-office collaboration and remote flexibility, typical for design roles requiring both focused individual work and team interaction. The mention of "Retail Media" points towards a specific industry focus, likely within e-commerce or advertising technology.

📈 Primary Responsibilities

• Conceptualize and design user interfaces with a minimum of 3 years of UI experience, focusing on user-centricity and product goals.

• Drive collaboration with brand content design teams, ensuring cohesive brand identity and user experience, with a special focus on Retail Media integration.

• Conduct and participate in workshops for ideation and alignment, fostering cross-functional communication and decision-making.

• Present and articulate UI/UX design choices, rationale, and user research findings to stakeholders and project teams.

• Contribute to the enhancement of global UX maturity and advocate for Design Thinking methodologies within project lifecycles.

• Integrate and promote digital accessibility standards in Luxembourg, including legal frameworks and practical implementation on projects.

• Support UX Researchers and potentially lead aspects of UX methodologies like field observation, guerrilla testing, user interviews, and card sorting.

• Develop and maintain comprehensive Design Systems for both Web and Mobile platforms, including documentation using tools like Zeroheight.

📝 Enhancement Note: The responsibilities highlight a blend of individual design contribution and collaborative facilitation. The expectation to support UX research and potentially lead aspects of it suggests a candidate with a strong understanding of the full user experience spectrum, not just visual design. The emphasis on accessibility in Luxembourg is a crucial point for candidates to address.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio demonstrating proficiency in UI design and UX integration is paramount. A background in Design, Human-Computer Interaction, or a related field is beneficial.

Experience: Minimum of 3 years of professional UI design experience, with a preference for agency background, demonstrating a strong understanding of user-centered design principles and product development lifecycles.

Required Skills:

• Complete mastery of Figma for interface design and prototyping.

• Proficient use of various prototyping tools to create interactive user flows.

• Ability to create, utilize, and expand a robust Web and Mobile Design System.

• Strong presentation skills with the capacity to articulate and defend design decisions.

Preferred Skills:

• Experience in documenting design systems using tools like Zeroheight.

• Familiarity with or ability to acquire skills in UX methodologies (e.g., user interviews, usability testing, card sorting).

• Knowledge of digital accessibility standards and legal frameworks in Luxembourg.

• Proficiency in other languages spoken in Luxembourg is a plus.

• Experience contributing to or leading ideation and alignment workshops.

📝 Enhancement Note: The explicit requirement for Figma mastery and the preference for Zeroheight documentation indicate specific toolchain expectations. The B1 English level is a critical threshold for communication in an international environment like Luxembourg. The blend of required and preferred skills suggests that candidates with a broader UX understanding will be highly valued.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase high-fidelity UI designs for both web and mobile applications, demonstrating user-centricity and aesthetic appeal.

• Include case studies that detail the design process, from initial concept through to final UI implementation, highlighting problem-solving and decision-making.

• Present examples of how UX principles were integrated into UI designs, illustrating a holistic approach to user experience.

• Demonstrate experience with creating or contributing to a Design System, including component libraries, style guides, and documentation.

Process Documentation:

• Detail your approach to conducting workshops and ideation sessions, including facilitation techniques and expected outcomes.

• Provide examples of how you have presented and defended UI/UX design choices to stakeholders, showcasing your communication and argumentation skills.

• Showcase any experience with user research methodologies, even if in a supporting capacity, and how findings informed UI design.

• If applicable, include documentation or examples of your work with Design Systems and tools like Zeroheight.

📝 Enhancement Note: The portfolio review is explicitly mentioned as a key step, emphasizing the need for detailed case studies that illustrate the integration of UX into UI and the candidate's process. The request for documentation on Design Systems and workshop facilitation points to the practical application of these skills.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for a Mid-Level UI Designer with 3-5 years of experience in Luxembourg, the estimated annual salary range is €55,000 - €75,000. This estimate considers the cost of living in Luxembourg, the demand for skilled design professionals, and the specific requirements of the role, including agency experience and tool proficiency.

Benefits:

• Permanent Contract (CDI): Offers job security and long-term employment.

• Hybrid Work Arrangement: Combines remote flexibility with in-office collaboration, promoting work-life balance.

• Professional Development: Opportunities for continuous learning, skill enhancement, and participation in industry events, supported by a leading UX/Design group.

• Diverse Projects: Exposure to a wide array of stimulating projects across various sectors (telecom, finance, retail, public sector) with major clients.

• Collaborative Environment: Work alongside experts in UX Research, UI Design, Product Design, SEO, Digital Marketing, and Analytics within the Smile Group ecosystem.

• Human-First Culture: Emphasis on well-being, respect, and a supportive work environment, aligned with "human first" values.

• International Exposure: Opportunity to work within a large, international group with a strong presence in multiple countries.

Working Hours: Approximately 40 hours per week, with flexibility expected due to the hybrid nature of the role and the collaborative demands of design projects.

📝 Enhancement Note: The salary estimate is based on publicly available data for UI Designers in Luxembourg, factoring in experience level and the hybrid work model. Benefits are extrapolated from the company description, highlighting elements important to design professionals seeking growth and work-life balance.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, Consulting, Digital Transformation, UX/UI Design, Digital Marketing, and Data Analytics. Smile Group is a major player in these fields, with UX-Republic specializing in user-centered design.

Company Size: Over 1800 employees across multiple countries and entities. UX-Republic functions as a specialized "pure player" for user-centered design within this larger group.

Founded: UX-Republic is part of the Smile Group, founded in 2007. This history suggests a mature organization with established processes and a strong market presence.

Team Structure:

• The UX-Republic team in Luxembourg is described as talented, passionate, and complementary. The UI Designer will be part of this core design unit.

• Reporting likely involves a lead designer or a UX/Design Manager, with close collaboration across UX Researchers, Product Designers, and potentially Brand Content Designers.

Methodology:

• Data-Driven Design: Emphasis on user research, analytics, and performance metrics to inform design decisions.

• User-Centered Approach: Placing the end-user at the core of all design processes and product development.

• Agile & Collaborative Workflows: Utilizing workshops, ideation sessions, and iterative design processes to ensure alignment and efficiency.

• Continuous Improvement: A culture that values ongoing learning, skill enhancement, and process optimization.

Company Website: https://jobs.smile.eu

📝 Enhancement Note: The company culture is presented as a blend of specialized expertise (UX-Republic) and the robust resources of a larger group (Smile Group). The "human first" ethos and focus on continuous improvement are key cultural differentiators for operations and design professionals.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned at a Mid-Level, requiring a solid foundation of 3+ years of experience. It offers a significant opportunity to deepen expertise in UI design while expanding into UX methodologies and potentially leading design initiatives.

Reporting Structure: The UI Designer will likely report to a Design Lead or Manager within UX-Republic Luxembourg. They will work closely with UX Researchers and collaborate with cross-functional teams on client projects, providing direct input into product development.

Operations Impact: The UI Designer's work directly influences the user experience of client products, impacting user engagement, conversion rates, and overall customer satisfaction. By ensuring high-fidelity, user-centered interfaces and advocating for UX best practices, they contribute significantly to the success and performance of client projects.

Growth Opportunities:

• Specialization: Deepen expertise in UI design, Design Systems, and potentially specific industry verticals like Retail Media.

• UX Skill Development: Gain hands-on experience and potentially lead UX research activities, broadening skill set and career options.

• Leadership Potential: Opportunities to lead design aspects of projects, mentor junior designers, and contribute to the strategic direction of UX/UI within the company.

• Cross-Functional Expertise: Develop a strong understanding of various business domains and digital transformation consulting through diverse client projects.

• Continuous Learning: Access to training, workshops, and community events within Smile Group to stay updated on the latest design trends and technologies.

📝 Enhancement Note: The growth path outlined emphasizes a dual trajectory: deepening UI specialization and broadening UX capabilities. The role is framed as more than just an execution role, with potential for leadership and strategic input, aligning well with ambitious mid-level professionals.

🌐 Work Environment

Office Type: The role is classified as Hybrid, indicating a mix of remote work and in-office presence. This suggests a modern workspace designed to foster collaboration and focused individual work.

Office Location(s): Differdange, Luxembourg. This location offers a professional setting within a region known for its technological and financial sectors.

Workspace Context:

• Collaborative Spaces: The office likely features meeting rooms, brainstorming areas, and open spaces conducive to design workshops and team discussions.

• Tools & Technology: Access to industry-standard design software (Figma, prototyping tools), potentially with robust IT support and hardware.

• Team Interaction: Regular opportunities to interact with fellow designers, UX researchers, project managers, and potentially client teams, fostering a dynamic and engaging work environment.

Work Schedule: Standard full-time working hours (approx. 40 hours/week) are expected, with the hybrid model allowing for flexibility in balancing remote and in-office days. The nature of design projects may occasionally require adjusted schedules to meet deadlines or client needs.

📝 Enhancement Note: The hybrid nature of this role is a key aspect, offering flexibility. The Luxembourg location places the role in a vibrant European hub, potentially offering diverse cultural experiences alongside professional opportunities.

📄 Application & Portfolio Review Process

Interview Process:

• Application Submission: Submit CV and Portfolio. The portfolio is critical for understanding project scope, UX integration, and UI design skills.

• First Contact: A preliminary phone call to discuss career aspirations and alignment with the company's offerings.

• In-Person Meeting: A more in-depth meeting to assess cultural fit, professional background, and mutual expectations.

• Technical/Skills Assessment: A discussion with a design expert to evaluate technical competencies, problem-solving abilities, and career objectives.

Portfolio Review Tips:

• Curate Strategically: Select 3-5 of your strongest, most relevant projects that showcase high-fidelity UI design, user-centered thinking, and ideally, some exposure to UX research or methodology.

• Tell a Story: For each project, clearly articulate the problem, your role, the design process (including UX considerations), your design decisions (and rationale), and the final outcome or impact. Use visuals effectively.

• Highlight Key Skills: Explicitly demonstrate your mastery of Figma, prototyping, and any Design System work. Mention Zeroheight experience if applicable.

• Address UX Integration: Clearly show how you incorporated user feedback, research insights, or UX principles into your UI designs. This is a major differentiator for this role.

• Accessibility Focus: If possible, include a project or a section that speaks to your understanding and application of digital accessibility, especially within a Luxembourg context.

Challenge Preparation:

• Be prepared to discuss your design philosophy and approach to user-centered design.

• Anticipate questions about how you handle design critiques and feedback from stakeholders.

• Be ready to articulate your understanding of Design Thinking and how you apply it in practice.

• Familiarize yourself with the concept of Retail Media and how UI design might support it.

• Research Smile Group and UX-Republic to demonstrate genuine interest and cultural alignment.

📝 Enhancement Note: The interview process is phased, with the portfolio being an early and crucial gatekeeper. Candidates should prepare to deeply articulate their design process and rationale, not just present final visuals.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Mandatory and complete mastery required for UI design, wireframing, and prototyping.

• Prototyping Tools: Proficiency with various tools for creating interactive user flows (e.g., InVision, Adobe XD, Principle, or Figma's native prototyping).

• Design System Tools: Experience with creating, managing, and documenting Design Systems for Web and Mobile.

• Zeroheight (or similar): Preferred for Design System documentation, indicating a need for structured design system management.

Analytics & Reporting:

CRM & Automation:

• Not directly relevant to the core UI design function, but an understanding of how design integrates with broader CRM and marketing automation platforms could be advantageous for client-facing roles.

📝 Enhancement Note: The emphasis on Figma and Design System tools is paramount. Candidates should be ready to demonstrate their proficiency and understanding of these core design technologies.

👥 Team Culture & Values

Operations Values:

• User-Centricity: Placing the end-user at the heart of all design decisions and product development strategies.

• Excellence & Rigor: Maintaining a high standard of quality in design output, process, and documentation.

• Collaboration & Openness: Fostering an environment of teamwork, knowledge sharing, and open communication across disciplines and with clients.

• Proactivity & Dynamism: Embracing challenges with enthusiasm, taking initiative, and contributing to a vibrant team atmosphere.

• Curiosity & Continuous Learning: A drive to explore new ideas, technologies, and methodologies to stay at the forefront of UX/UI design.

Collaboration Style:

• Cross-Functional Integration: Seamless collaboration with UX Researchers, Product Designers, Brand Content Designers, and development teams to ensure cohesive product delivery.

• Workshop Facilitation: Actively participating in and leading workshops to align stakeholders, brainstorm solutions, and gather insights.

• Knowledge Sharing: A culture that encourages sharing best practices, design trends, and learnings through internal events, presentations, and discussions.

📝 Enhancement Note: The values align with a modern, forward-thinking design team that prioritizes both user impact and internal team synergy. The "human first" approach extends to how colleagues interact and support each other.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing UX and UI: Effectively integrating user research findings and UX principles into visually compelling and functional UI designs.

• Retail Media Integration: Understanding and designing for the specific nuances of the Retail Media landscape, a newer and evolving area.

• Stakeholder Management: Presenting and defending design choices to diverse stakeholders with varying levels of design understanding.

• Accessibility Compliance: Ensuring all designs meet digital accessibility standards, particularly within the Luxembourg legal framework.

• Rapid Project Cycles: Adapting to fast-paced project environments and delivering high-quality work under tight deadlines.

Learning & Development Opportunities:

• Advanced UI/UX Training: Access to internal and external training programs to enhance design skills and explore new methodologies.

• Industry Conferences & Events: Opportunities to attend relevant design conferences and community events to network and learn about emerging trends.

• Mentorship Programs: Benefit from mentorship from senior designers and UX experts within Smile Group.

• Leading Design Initiatives: Potential to take on more responsibility, lead design aspects of projects, and contribute to strategic design decisions.

📝 Enhancement Note: The challenges presented are typical for a mid-level designer in a consulting environment, offering ample opportunity for professional growth by tackling complex problems.

💡 Interview Preparation

Strategy Questions:

• "Describe a project where you had to balance a strong brand identity with a complex user flow. How did you approach it?" (Focus: UI/UX integration, problem-solving)

• "How do you ensure your UI designs are user-centered, especially when working on projects with tight business constraints?" (Focus: User-centricity, rationale, decision-making)

• "Walk us through your process for creating or contributing to a Design System. What are the key components and documentation needs?" (Focus: Design Systems, process, tools like Zeroheight)

Company & Culture Questions:

• "What interests you about Smile Group and UX-Republic specifically, beyond just the UI Designer role?" (Focus: Company research, cultural fit)

• "How do you embody the 'human first' approach in your design process and team interactions?" (Focus: Cultural alignment, values)

Portfolio Presentation Strategy:

• Narrative Arc: Structure your portfolio presentation with a clear beginning (problem/goal), middle (process/solutions), and end (outcome/impact).

• Show, Don't Just Tell: Use high-quality visuals and interactive prototypes to demonstrate your design capabilities. For each project, clearly explain the "why" behind your design choices.

• Quantify Impact: If possible, include metrics or user feedback that demonstrate the success of your designs.

• Highlight Collaboration: Discuss how you worked with cross-functional teams, stakeholders, and UX researchers.

• Address Specific Requirements: Be prepared to speak directly to your Figma proficiency, Design System experience, and any understanding of digital accessibility in Luxembourg.

📝 Enhancement Note: Interview questions will likely probe your understanding of the full design lifecycle, your collaborative abilities, and your alignment with the company's values and specific needs like Design Systems and accessibility.

📌 Application Steps

To apply for this UI Designer position:

• Submit your CV and a comprehensive portfolio through the provided application link.

• Portfolio Customization: Ensure your portfolio specifically highlights 2-3 projects showcasing high-fidelity UI design, user-centered thinking, and your process for integrating UX insights. Explicitly mention your Figma proficiency and any Design System experience.

• Resume Optimization: Tailor your resume to emphasize your 3+ years of UI design experience, agency background (if applicable), and proficiency with Figma and prototyping tools. Use keywords like "UI Design," "User Interface," "Figma," "Design System," and "User-Centered Design."

• Interview Preparation: Rehearse your portfolio presentation, focusing on articulating your design rationale and process. Prepare answers to common UI/UX interview questions and research Smile Group's values and recent projects.

• Company Research: Understand UX-Republic's positioning within Smile Group, their "human first" culture, and their focus on UX/UI expertise. Familiarize yourself with the Luxembourg market context, including digital accessibility.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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