Senior UX & Product Designer

📍 Job Overview

Job Title: Senior UX & Product Designer

Company: Smile Group

Location: Differdange, Luxembourg

Job Type: FULL_TIME

Category: UX/Product Design & Digital Transformation

Date Posted: 2026-08-31

Experience Level: Mid-Senior Level (3-4 years)

Remote Status: Hybrid

🚀 Role Summary

• Lead the design of exceptional user experiences and champion product vision within an Agile framework, focusing on digital transformation initiatives.

• Drive the end-to-end UX/Product design process, from user research and ideation to prototyping and validation, ensuring user-centricity and business alignment.

• Contribute to and enrich the existing Design System by creating and adapting components to maintain visual consistency across digital channels.

• Collaborate closely with Product Owners, business stakeholders, and development teams to translate complex user needs and business objectives into innovative and practical design solutions.

• Design fluid, responsive, and coherent interfaces optimized for various platforms, devices, and screen sizes, ensuring a seamless user journey.

📝 Enhancement Note: This role is positioned as a Senior UX & Product Designer, indicating a need for independent work, leadership in design processes, and mentorship potential. The emphasis on "digital transformation" and "major partner" suggests involvement in significant, impactful projects. The hybrid work arrangement implies a balance between in-office collaboration and remote flexibility. The primary language of work is French, with English proficiency also being crucial for the international context.

📈 Primary Responsibilities

• User-Centric Design Leadership: Pilot the entire UX/Product design lifecycle, ensuring user needs are at the forefront of every decision, from initial concept to final implementation.

• Cross-Functional Collaboration: Actively engage with Product Owners, business stakeholders, and development teams to gather requirements, align on objectives, and foster a shared understanding of design goals.

• Design System Stewardship: Enhance and maintain the company's Design System by creating new components and adapting existing ones to ensure brand consistency, scalability, and efficiency across all digital touchpoints.

• User Research & Validation: Conduct comprehensive qualitative and quantitative user research, including interviews, surveys, and usability testing, to gather actionable insights for iterative design improvements.

• Interface Design & Prototyping: Create intuitive, responsive, and visually appealing user interfaces and interactive prototypes (low to high fidelity) that effectively communicate design concepts and user flows across diverse devices and platforms.

• Agile Environment Integration: Thrive within an Agile development environment, participating in sprint planning, reviews, and retrospectives, and adapting designs based on feedback and evolving project requirements.

• Mentorship & Knowledge Sharing: Share expertise in UX/Product Design, Design Thinking, and best practices with team members, fostering a culture of continuous learning and improvement within the design community.

📝 Enhancement Note: The responsibilities highlight a blend of strategic product visioning and hands-on design execution. The emphasis on "piloting" the design process and "enriching" the Design System suggests a senior individual contributor role with significant ownership and influence on design standards and product direction.

🎓 Skills & Qualifications

Education: Bachelor's degree in Human-Computer Interaction (HCI), Digital Design, Graphic Design, or a related field.

Experience: Minimum of 3 to 4 years of professional experience as a UX/Product Designer, with a proven track record of designing engaging user experiences.

Required Skills:

• UX/Product Design Expertise: Comprehensive understanding and practical application of the full UX/Product design process, including user research, ideation, wireframing, prototyping, and usability testing.

• Figma Proficiency: Expert-level command of Figma for all design and prototyping activities, including component creation, design system management, and collaborative workflows.

• Design System Development: Experience in creating, maintaining, and evolving design systems to ensure consistency and scalability across digital products.

• User Research Methodologies: Proficiency in conducting qualitative (interviews, user testing) and quantitative (surveys) user research to inform design decisions.

• Prototyping Skills: Ability to create low-fidelity wireframes and high-fidelity interactive prototypes to effectively communicate design concepts and user flows.

• Responsive & Cross-Platform Design: Proven ability to design interfaces that adapt seamlessly across various devices, screen sizes, and platforms.

• Agile Mindset: Familiarity with Agile methodologies and experience working effectively within Agile development teams.

• Teamwork & Collaboration: Strong team player with excellent interpersonal skills, capable of working effectively in a collaborative, cross-functional environment.

• Language Proficiency: Fluent in English (written and spoken); strong command of French is a significant advantage.

Preferred Skills:

• Experience designing complex web applications.

• Proficiency in Design Thinking workshops and facilitation.

• Familiarity with other design and prototyping tools.

• Experience with accessibility standards (WCAG).

• Understanding of front-end development principles (HTML, CSS, JavaScript).

📝 Enhancement Note: The requirement for 3-4 years of experience and specific tool proficiency (Figma) points to a mid-to-senior level designer. The emphasis on a strong portfolio demonstrating "engaging user experiences" is critical for showcasing practical skills and design thinking. The inclusion of "Agile mindset" and "Design Thinking" highlights the need for a collaborative and iterative approach to design.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Comprehensive Case Studies: A curated portfolio showcasing at least 3-4 detailed case studies that illustrate your end-to-end UX/Product design process, problem-solving approach, and the impact of your designs.

• Process Documentation: For each case study, clearly outline the problem statement, your role, the methodologies used (e.g., user research, wireframing, prototyping, testing), key design decisions, and the rationale behind them.

• Impact & Outcomes: Quantify the success of your designs where possible, using metrics related to user engagement, conversion rates, task completion, or user satisfaction. Demonstrate how your designs met business objectives.

• Tool Proficiency Showcase: Highlight your expertise with design tools, particularly Figma, demonstrating your ability to create sophisticated designs, manage design systems, and develop interactive prototypes.

• Visual Design Excellence: Present high-quality visuals of final interfaces, ensuring they are clear, well-organized, and representative of your best work.

Process Documentation:

• Workflow Design: Demonstrate your ability to map out complex user journeys and design efficient, intuitive workflows.

• User Research Synthesis: Show how you translate raw user research data into actionable insights that drive design strategy and product decisions.

• Iterative Design & Testing: Provide examples of how you used feedback from user testing and stakeholder reviews to iterate on designs and improve usability.

• Design System Contribution: If applicable, include examples of components or patterns you designed for a design system, explaining their purpose and contribution to consistency.

📝 Enhancement Note: A strong portfolio is paramount for this role. It should not only showcase visual design skills but also a deep understanding of the design process, user-centered methodologies, and the ability to articulate design decisions and their impact. The emphasis on Figma and Design Systems suggests the company values structured and scalable design approaches.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior UX/Product Designers in Luxembourg with 3-4 years of experience, and considering the cost of living, a competitive annual salary range is estimated between €60,000 and €80,000. This range is subject to variation based on the candidate's specific qualifications, experience, and interview performance.

Benefits:

• Comprehensive Training: Access to a robust e-learning platform for continuous skill development.

• Certification Funding: Financial support for obtaining industry-recognized certifications to enhance expertise.

• Knowledge Sharing: Participation in internal knowledge-sharing sessions, workshops, and access to collaborative tools designed to foster learning and innovation.

• Peer-Based Management: A supportive management structure where guidance and feedback are provided by experienced peers, fostering a collaborative growth environment.

• Health & Wellness: Standard health insurance and wellness programs.

• Paid Time Off: Generous annual leave and public holiday allowance.

• Retirement Plan: Contribution to a company-sponsored pension scheme.

Working Hours: Standard full-time working hours are approximately 40 hours per week, with flexibility offered in line with hybrid work arrangements. Specific daily start and end times can often be discussed to accommodate personal needs and team collaboration schedules.

📝 Enhancement Note: The salary estimate is based on typical Senior UX/Product Designer compensation in Luxembourg, factoring in the company's size and industry. Benefits are detailed based on common offerings in tech consulting firms, with a specific emphasis on the provided training and knowledge-sharing opportunities which are key selling points for Smile Group.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology Consulting, specializing in Open Source Integration. Smile Group is a leading European player in this sector, focusing on digital transformation through innovative open-source solutions.

Company Size: Over 1,800 employees across 20 agencies in 9 countries. This indicates a large, established organization with a significant global footprint, offering stability and diverse opportunities.

Founded: While the founding date isn't specified, Smile has established itself as a significant entity in the European tech landscape, suggesting a mature company with a developed organizational structure and market presence.

Team Structure:

• Design Expertise Hub: The role is within a team of passionate experts, likely comprising other designers, UX researchers, and product strategists, forming a core competency center for digital product development.

• Agile Pods: Designers typically work within cross-functional Agile teams, collaborating closely with Product Owners, developers, QA testers, and Scrum Masters on specific projects or product lines.

• Cross-Functional Collaboration: Expect close interaction with business stakeholders from client organizations, as well as internal project managers and account managers, to ensure alignment on project goals and client satisfaction.

Methodology:

• Agile & Design Thinking: The company operates with an Agile mindset, integrating Design Thinking principles to foster innovation, user-centricity, and rapid iteration in its project delivery.

• Open Source Focus: A strong emphasis on leveraging and contributing to open-source technologies, encouraging exploration of cutting-edge solutions.

• Data-Driven Decision Making: While user-centricity is paramount, decisions are often informed by data from user research, analytics, and performance metrics to ensure optimal outcomes.

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

📝 Enhancement Note: Smile Group's positioning as a European leader in open-source integration implies a culture that values technical excellence, innovation, and continuous learning. The large company size suggests structured career paths and robust internal processes, while the international presence offers exposure to diverse projects and markets. The hybrid work model indicates a modern approach to employee work-life balance.

📈 Career & Growth Analysis

Operations Career Level: This role is designated as "Senior UX & Product Designer," signifying a mid-to-senior level position. It requires a candidate who can independently lead design processes, mentor junior colleagues, and contribute strategically to product vision. The expectation is for the individual to take ownership of complex design challenges and drive outcomes with minimal supervision.

Reporting Structure: The Senior UX & Product Designer will likely report to a Design Lead, UX Manager, or Head of Product Design within Smile Group. They will also work closely with Product Owners and Project Managers on specific client engagements, forming part of cross-functional Agile teams.

Operations Impact: The Senior UX & Product Designer plays a critical role in the success of digital transformation projects by ensuring that the end products are not only functional but also highly usable, engaging, and aligned with both user needs and business objectives. Their work directly influences client satisfaction, product adoption rates, and ultimately, the achievement of strategic business goals for Smile's partners.

Growth Opportunities:

• Specialization & Mastery: Deepen expertise in specific areas of UX/Product Design, such as user research, interaction design, or design systems, potentially becoming a subject matter expert.

• Leadership Development: Progress into roles such as Lead UX Designer, Design Manager, or Product Lead, managing design teams and setting strategic design direction.

• Client & Project Management: Transition into roles with greater client-facing responsibilities or project management oversight, leveraging design expertise to guide client engagements.

• Continuous Learning: Benefit from Smile's commitment to employee development through extensive training, certifications, and knowledge-sharing initiatives, staying at the forefront of design trends and technologies.

📝 Enhancement Note: The "Senior" title implies a significant level of autonomy and potential for leadership. Smile's emphasis on training and peer-based management suggests a structured approach to career development, allowing for both technical specialization and managerial growth paths.

🌐 Work Environment

Office Type: Smile Group operates a hybrid work model, balancing in-office collaboration with remote flexibility. The office in Differdange, Luxembourg, likely serves as a hub for client meetings, team workshops, and collaborative design sessions.

Office Location(s): Rue Emile Mark, Differdange, 4620, Luxembourg. This location provides access to the company's resources and facilitates in-person interaction with colleagues and clients in the region.

Workspace Context:

• Collaborative Spaces: The office environment is expected to feature open-plan areas, meeting rooms, and potentially dedicated design studios designed to foster collaboration and idea exchange among team members.

• Technology & Tools: Access to modern design software (especially Figma), high-performance workstations, and other necessary technological resources to support efficient design work.

• Team Interaction: Opportunities for regular face-to-face interaction with fellow designers, project managers, developers, and client representatives, enhancing communication and team cohesion.

• Client Engagement: The hybrid model allows for flexibility, but the office presence is key for client-facing activities and fostering strong working relationships within the Luxembourg office.

Work Schedule: The standard work schedule is based on a 40-hour week. The hybrid model allows for a degree of flexibility in daily hours, enabling employees to balance work responsibilities with personal commitments while ensuring sufficient overlap for team collaboration and client availability.

📝 Enhancement Note: The hybrid nature of the role suggests a modern work environment that values both flexibility and collaborative synergy. The Differdange office will be the primary anchor for in-person activities, emphasizing the importance of local team integration.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening Call: A phone conversation with a recruiter or hiring manager to discuss your career aspirations, understand your motivations for applying, and assess your initial fit for the role and Smile Group's culture. Be prepared to briefly highlight key achievements from your portfolio.

• In-Person/Video Interview: A more in-depth discussion with hiring managers and potentially senior design team members. This stage will focus on your professional background, design philosophy, and how your experience aligns with the specific requirements of the Senior UX & Product Designer role.

• Technical/Portfolio Review: A dedicated session where you will present your portfolio. Expect to walk through 1-2 key case studies, detailing your process, design decisions, problem-solving approach, and the impact of your work. Be ready to answer detailed questions about your design choices and methodologies.

• Skills Assessment/Workshop (Potential): You might be asked to complete a design exercise or participate in a collaborative workshop scenario to evaluate your practical design skills, problem-solving abilities, and how you work within a team dynamic.

• Final Interview & Offer: A concluding meeting, potentially with senior leadership, to discuss the role, team, and offer details.

Portfolio Review Tips:

• Curate Strategically: Select 2-3 of your strongest projects that best demonstrate your skills in UX/Product Design, Figma proficiency, and experience with complex applications or digital transformation. Prioritize projects that align with Smile's focus on open source and innovation.

• Tell a Story: For each case study, clearly articulate the problem, your role, the process you followed, the solutions you designed, and the measurable outcomes. Use visuals effectively to illustrate your journey.

• Highlight Process: Emphasize your problem-solving approach, user research methodologies, iterative design process, and how you incorporated feedback. Show your thinking, not just the final output.

• Demonstrate Figma Expertise: Be prepared to discuss specific Figma features you utilized, your experience with design systems, and how you leverage the tool for efficient collaboration and prototyping.

• Quantify Impact: Whenever possible, provide data or metrics (e.g., improved conversion rates, increased user satisfaction scores, reduced task completion time) to showcase the tangible business value of your design work.

Challenge Preparation:

• Understand the Context: If a design challenge is provided, take time to understand the business context, target users, and objectives. Ask clarifying questions if needed.

• Structure Your Approach: Outline your design process clearly. This might involve defining user personas, outlining key user flows, sketching initial concepts, and identifying key areas for testing or iteration.

• Focus on Problem-Solving: Demonstrate your ability to break down complex problems into manageable parts and propose thoughtful, user-centered solutions.

• Articulate Trade-offs: Be prepared to discuss any design trade-offs you made and the rationale behind them, showing an understanding of constraints and priorities.

• Present Clearly: Practice presenting your solutions concisely and effectively, highlighting key design decisions and their justification.

📝 Enhancement Note: The interview process emphasizes a thorough evaluation of both design skills and cultural fit. The portfolio review is a critical component, requiring candidates to articulate their process and impact. Preparation for a potential design challenge or workshop is advisable.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core design and prototyping tool. Expect to use it extensively for UI design, wireframing, prototyping, design system management, and collaborative workflows.

• Prototyping Tools: While Figma is primary, familiarity with other prototyping tools may be beneficial for specific project needs or integrations.

• User Research Platforms: Tools like UserTesting.com, Maze, Lookback, or similar platforms for conducting remote usability tests and gathering user feedback.

• Collaboration & Project Management: Tools such as Jira, Confluence, Trello, or Asana for working within Agile teams, tracking tasks, and documenting processes.

Analytics & Reporting:

• Web Analytics: Familiarity with tools like Google Analytics, Adobe Analytics, or similar platforms to understand user behavior on digital products.

• Heatmapping & Session Recording: Tools like Hotjar or FullStory to visualize user interactions and identify usability issues.

• Data Visualization: While not primary design tools, understanding how data is presented in dashboards (e.g., Tableau, Power BI) can be helpful for understanding product performance.

CRM & Automation:

• CRM Systems: Awareness of CRM platforms (e.g., Salesforce, HubSpot) can be useful for understanding how user data informs product design and marketing efforts.

• Customer Data Platforms (CDP): Understanding how CDPs consolidate customer data for a unified view.

• Integration Tools: General awareness of how different software systems integrate can be beneficial in understanding the broader tech ecosystem of client projects.

📝 Enhancement Note: Figma is clearly the central tool for this role. Proficiency with user research platforms and project management tools is also expected for effective collaboration within an Agile and client-focused environment.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A deep commitment to understanding and advocating for the end-user in all design and product decisions.

• Innovation & Curiosity: A drive to explore new technologies, methodologies, and design approaches, particularly within the open-source landscape.

• Collaboration & Teamwork: A strong belief in the power of collective intelligence, encouraging open communication, knowledge sharing, and mutual support among team members.

• Excellence & Quality: A dedication to delivering high-quality, impactful design solutions that meet both user needs and business objectives.

• Responsibility & Ownership: Taking initiative, owning design processes, and driving projects to successful completion.

Collaboration Style:

• Cross-Functional Synergy: Actively partnering with Product Owners, developers, business analysts, and client stakeholders to ensure a cohesive and integrated approach to product development.

• Open Feedback Culture: Encouraging constructive feedback loops, where ideas are shared openly, and design iterations are driven by collective input and continuous improvement.

• Knowledge Exchange: Regularly participating in design reviews, brown-bag sessions, and internal workshops to share best practices, learn from peers, and stay updated on industry trends.

• Agile Integration: Seamlessly integrating into Agile ceremonies and workflows, contributing actively to sprint planning, retrospectives, and daily stand-ups.

📝 Enhancement Note: Smile Group's culture emphasizes collaboration, continuous learning, and a strong user focus, all within the dynamic context of open-source technology and digital transformation. The peer-based management style suggests a flat hierarchy where expertise and collaboration are highly valued.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Stakeholder Needs: Navigating diverse and sometimes conflicting requirements from various business stakeholders and end-users to arrive at optimal design solutions.

• Rapid Technological Evolution: Keeping pace with the fast-evolving landscape of design tools, methodologies, and open-source technologies to ensure best practices are maintained.

• Client Project Dynamics: Adapting to different client environments, project scopes, and team dynamics, requiring flexibility and strong communication skills.

• Design System Scalability: Ensuring the design system remains robust, scalable, and maintainable as the product suite and company grow.

Learning & Development Opportunities:

• Advanced Design Skills: Access to specialized training modules and workshops to enhance expertise in areas like interaction design, UX research, accessibility, or advanced prototyping.

• Industry Conferences & Certifications: Opportunities to attend relevant design conferences and pursue certifications that validate and expand professional knowledge.

• Mentorship Programs: Benefit from guidance from experienced senior designers and leaders within Smile Group, fostering personal and professional growth.

• Exposure to Diverse Projects: Work on a variety of client projects across different industries, offering broad exposure and the chance to tackle unique design challenges.

📝 Enhancement Note: The challenges inherent in this role revolve around managing complexity, staying current with technology, and effectively collaborating in client-facing environments. Smile's commitment to learning and development provides a strong framework for addressing these challenges and fostering career growth.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex UX challenge you faced in a previous role and how you approached solving it. What was the outcome?" (Focus on process, user research, and impact.)

• "How do you balance the needs of different stakeholders (e.g., Product Owners, business, users) when designing a product feature?" (Highlight collaboration, negotiation, and user advocacy.)

• "Walk us through your process for designing a new feature from ideation to final implementation. What tools do you use, and why?" (Emphasize your workflow, Figma expertise, and user-centricity.)

• "How do you stay updated with the latest UX/Product Design trends and technologies, especially in the open-source domain?" (Showcase continuous learning and passion for the field.) Company & Culture Questions:

• "What interests you about Smile Group and our focus on open-source integration?" (Research Smile's projects, values, and recent news.)

• "How do you see yourself contributing to our Agile and collaborative team environment?" (Align your teamwork and communication style with the company's culture.)

• "Describe a time you had to adapt your design approach based on feedback or constraints. How did you handle it?" (Demonstrate flexibility and problem-solving.) Portfolio Presentation Strategy:

• Structure Your Narrative: For each case study, clearly define the problem, your role, the research and ideation phases, key design decisions, iterations, and the final outcome/impact.

• Visual Storytelling: Use high-quality mockups, wireframes, prototypes, and user flow diagrams to visually guide the interviewer through your process.

• Highlight Figma Usage: Be prepared to discuss specific Figma features you leveraged, your experience with components, variants, auto-layout, and design system management.

• Quantify Your Impact: Present metrics or data that demonstrate the success of your designs, such as improved conversion rates, user satisfaction scores, or task completion times.

• Be Ready for Deep Dives: Anticipate detailed questions about your design rationale, user research findings, and problem-solving strategies.

📝 Enhancement Note: Interview preparation should focus on articulating your design process, showcasing your Figma skills, demonstrating your understanding of user-centricity and Agile methodologies, and aligning your experience with Smile Group's values and industry focus.

📌 Application Steps

To apply for this Senior UX & Product Designer position:

• Submit your application through the Smile Group careers portal.

• Portfolio Customization: Tailor your portfolio to highlight projects that demonstrate your experience in complex web applications, user research, Figma proficiency, and contribution to design systems. Prioritize case studies that showcase your end-to-end design process and measurable impact.

• Resume Optimization: Ensure your resume clearly outlines your 3-4+ years of relevant UX/Product Design experience, specifically mentioning Figma, Agile methodologies, Design Thinking, and any experience with digital transformation projects. Use keywords from the job description.

• Interview Preparation: Practice articulating your design process, problem-solving skills, and the outcomes of your past projects. Prepare to present 1-2 key portfolio case studies in detail, focusing on your role and impact.

• Company Research: Familiarize yourself with Smile Group's mission, values, open-source focus, and recent projects. Understand their approach to digital transformation and how your skills can contribute to their success.

⚠️ 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.