Product Designer - H/F

📍 Job Overview

Job Title: Product Designer - H/F

Company: Dayuse

Location: Paris, Île-de-France, France

Job Type: Contractor

Category: Product Design / UX/UI

Date Posted: March 10, 2026

Experience Level: 5-10 Years

Remote Status: Hybrid (up to 2 days remote per week)

🚀 Role Summary

• Lead the transformation of the existing Design System into an intelligent, modular, and scalable internal product, addressing diverse territories and use cases.

• Pioneer the integration of Generative AI and Predictive AI to personalize customer experiences and automate workflows for hotel partners.

• Drive user research initiatives, conducting interviews and testing across 30 countries, and structuring a global insights repository to inform data-driven decisions.

• Master marketplace complexity through data analysis and implement a systematic AI-assisted A/B testing approach to continuously optimize conversion and engagement.

• Act as a force multiplier by empowering Product Managers with prototyping skills and collaborating with Brand direction to reconcile brand identity with UX effectiveness.

📝 Enhancement Note: This role is positioned as the first dedicated Principal Product Designer, implying a significant opportunity for ownership and strategic influence. The emphasis on transforming the Design System into a "product" and pioneering AI integration suggests a highly strategic and innovative focus, rather than purely execution-based design tasks. The role also carries significant responsibility for user research across a global scale and driving data-informed optimization.

📈 Primary Responsibilities

• Productize the Design System: Evolve the current Design System into an intelligent, modular, and scalable internal product capable of supporting varied territories and user journeys.

• System Architecture Integration: Drive the technical integration of design elements, including Design Tokens, Code Connect, and MCP Server, to ensure seamless synchronization between design and development deployments.

• AI Exploration & Implementation: Proactively research, explore, and integrate opportunities presented by Generative AI and Predictive AI to enhance customer personalization and automate partner workflows.

• User Research Leadership: Organize and conduct user interviews (B2C customers and hotel partners) and usability testing sessions across 30 countries, ensuring a deep understanding of user needs.

• Insights Repository Management: Establish, manage, and animate a global Insights Repository, leveraging data and AI to facilitate rapid and relevant decision-making across the company.

• Data-Informed Optimization: Analyze marketplace data to inform strategic design choices and implement a systematic, AI-assisted A/B testing framework to continuously improve conversion rates and user engagement.

• Product Manager Enablement: Support and train Product Managers in prototyping capabilities, providing them with the necessary guidelines and systems developed.

• Brand-UX Reconciliation: Collaborate closely with the Brand direction team to harmonize a strong brand identity with effective user experience principles.

• Stakeholder Communication: Articulate design convictions and translate design challenges into tangible business impacts for stakeholders and C-level executives.

📝 Enhancement Note: The responsibilities highlight a dual focus on strategic product development (Design System as a product, AI integration) and deep user understanding (research, A/B testing). The leadership aspect is crucial, emphasizing the need to "empower" and "multiply force" rather than just execute tasks.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio and demonstrable experience in Product Design are paramount. Backgrounds in HCI, Design, Computer Science, or related fields are beneficial.

Experience:

• Minimum of 5 years of progressive experience in Product Design.

• Proven experience within an international scale-up environment.

• Demonstrated experience in structuring and leading a design function, either independently or as a lead.

Required Skills:

• Product Design Expertise: Deep understanding of user-centered design principles, interaction design, and UI design.

• Design System Proficiency: Ability to build, evolve, and productize scalable Design Systems.

• Technical Integration Knowledge: Familiarity with Design Tokens, Code Connect, and MCP Server for seamless design-to-code implementation.

• AI & Innovation Acumen: Proactive and forward-thinking approach to leveraging Generative AI and Predictive AI in design processes.

• User Research Methodologies: Expertise in conducting qualitative and quantitative user research, including interviews and usability testing.

• Data Analysis & Interpretation: Proficient in analyzing user data and marketplace metrics to inform strategic decisions.

• A/B Testing Implementation: Experience in designing, executing, and analyzing A/B tests, preferably with AI assistance.

• Prototyping Tools: Mastery of industry-standard prototyping tools (e.g., Figma, Sketch, Adobe XD).

• Cross-functional Collaboration: Ability to work effectively with Product Managers, Developers, Brand teams, and senior leadership.

• Fluent English: Essential for international user research and communication.

Preferred Skills:

• SQL Proficiency: Ability to query databases to gather insights.

• Analytics Platform Experience: Familiarity with tools like Google Analytics, Mixpanel, or Amplitude.

• Design-to-Code Integration: Strong understanding of how design translates into functional code.

• International Market Experience: Prior experience designing for diverse global markets.

• Experience with API integrations: Understanding how design interacts with backend systems.

📝 Enhancement Note: The emphasis on "structuring a design function" and "productizing the Design System" suggests that candidates with experience in building design processes and frameworks from the ground up will be highly valued. The "Data-Informed" and "AI" requirements are critical, indicating a need for a technically adept and analytically minded designer.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Design System Productization Case Study: Showcase an example where you evolved or built a Design System, demonstrating its modularity, scalability, and how it functioned as an internal "product." Detail the challenges, your approach, and the impact.

• AI Integration Project: Present a project where you explored or implemented AI (generative or predictive) to enhance user experience or automate workflows. Explain the problem, your solution, and measurable outcomes.

• User Research & Insights Repository Example: Provide evidence of your user research capabilities, including how you structured and leveraged insights from user interviews and testing, ideally demonstrating the creation of an "Insights Repository."

• Data-Driven Optimization Case Study: Detail a project where you used data analysis and A/B testing to significantly improve conversion rates or user engagement. Clearly articulate the metrics, methodology, and results.

• Design-to-Code Workflow: Illustrate your process for ensuring seamless collaboration between design and development, highlighting any specific tools or methodologies used for efficient implementation.

Process Documentation:

• Workflow Design & Optimization: Demonstrate your ability to map out and optimize complex user journeys and internal workflows, particularly within a marketplace context.

• System Implementation & Automation: Provide examples of how you’ve implemented design systems or automated processes to improve efficiency and consistency.

• Performance Analysis & Measurement: Show how you define success metrics, track performance, and use data to iterate on designs and strategies.

📝 Enhancement Note: The portfolio requirements are heavily geared towards demonstrating strategic thinking, process ownership, and a data-driven, AI-forward approach. Candidates should prepare detailed case studies that not only showcase design execution but also the strategic rationale, process, and measurable impact. The "productizing the Design System" aspect is a key differentiator.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for a Principal Product Designer with 5-10 years of experience in Paris, France, and considering the "CONTRACTOR" employment type, the estimated gross annual salary range is €70,000 - €100,000. This estimate accounts for the strategic nature of the role, the requirement for specialized skills (AI, data, design systems), and the cost of living in Paris.

Benefits:

• Flexible Work Arrangement: Up to 2 days of remote work per week, providing a hybrid work environment.

• Performance-Based Compensation: A competitive fixed salary complemented by a variable component and a profit-sharing plan, acknowledging individual and company performance.

• Meal Vouchers: SWILE meal vouchers valued at €10, with 50% of the cost covered by the employer.

• Generous Paid Time Off: 25 days of annual leave plus 6 RTT (Reduction of Working Time) days, totaling 31 days of paid time off.

• Comprehensive Health Coverage: A company health insurance plan with 50% employer contribution.

• Commuting Assistance: 50% reimbursement for transportation subscription costs.

• Structured Onboarding: A dedicated "Welcome Campus" program for a thorough integration into the company and its teams.

• International Team Exposure: Opportunity to work with multi-cultural teams across three continents.

• Company Events: Regular social events including lunches, parties, and aperitifs to foster team cohesion.

• Vibrant Office Location: Offices situated in a lively area of the 9th arrondissement in Paris with excellent amenities.

Working Hours: A standard 40-hour work week is expected, with flexibility offered through the hybrid work arrangement.

📝 Enhancement Note: As a contractor role, specific benefits like profit-sharing and health insurance coverage should be clarified with Dayuse. The salary range is an estimate for a contractor; actual compensation may vary based on negotiation and specific contract terms. The provided benefits are typical for full-time employees, so contractor-specific details would need confirmation.

🎯 Team & Company Context

🏢 Company Culture

Industry: Hospitality Technology / Travel Tech / Marketplace. Dayuse operates within the dynamic travel and hospitality sector, leveraging technology to innovate traditional hotel services by offering hourly bookings.

Company Size: Dayuse is a growing international company, described as a "scale-up" with a "Tech & Produit" team of 20 people organized into 3 squads. This indicates a mid-sized, agile organization with focused product development efforts.

Founded: Dayuse was founded to transform the hotel experience by making hotels accessible for day-use bookings. This disruptive approach suggests a culture that values innovation, agility, and challenging established norms.

Team Structure:

• Tech & Produit Team: Consists of approximately 20 individuals, organized into 3 distinct squads, suggesting a cross-functional, agile team structure focused on specific product areas.

• Reporting: The Principal Product Designer will report to the CPO (Chief Product Officer) and work closely with the COO (Chief Operating Officer) during the final interview stages.

• Cross-functional Collaboration: The role emphasizes close collaboration with Product Managers, Developers, Brand direction, and C-level executives, indicating a highly integrated approach to product development.

Methodology:

• Data-Driven Decision Making: A strong emphasis on using data analysis, user insights, and A/B testing to guide strategic decisions and product development.

• Agile Product Development: The organization of the Tech & Produit team into squads points towards agile methodologies, enabling rapid iteration and focused development.

• User-Centric Design: A commitment to understanding and serving both B2C customers and B2B hotel partners through comprehensive user research.

• AI Integration: A forward-looking approach to incorporating AI technologies to enhance user experience and operational efficiency.

Company Website: https://careers.dayuse.com

📝 Enhancement Note: The company culture appears to be entrepreneurial, innovative, and data-centric, fitting for a scale-up aiming for significant growth. The emphasis on "ownership" and "impact" suggests an environment where individuals are empowered to take initiative.

📈 Career & Growth Analysis

Operations Career Level: This is a Principal Product Designer role, signifying a senior-level position. It involves not only executing design tasks but also setting strategic direction, building foundational design infrastructure (Design System), and pioneering new technologies (AI). It's a role for an individual contributor with significant strategic influence and potential leadership responsibilities in shaping the design function.

Reporting Structure: The Principal Product Designer will report directly to the Chief Product Officer (CPO), indicating high visibility and direct influence on product strategy. They will also interact with the Chief Operating Officer (COO) and potentially other C-level executives.

Operations Impact: The role is pivotal in transforming the Dayuse platform into a modular, data-driven, and user-centric experience. The designer's work will directly impact customer acquisition, retention, partner satisfaction, and overall business growth by optimizing conversion rates and personalizing experiences. The strategic focus on AI and Design Systems has the potential to create significant long-term value and competitive advantage.

Growth Opportunities:

• Shape the Design Function: As the first Principal Product Designer, there's a unique opportunity to define and build the future of the design discipline at Dayuse, potentially growing into a Head of Design or Design Lead role as the company scales.

• AI & Innovation Leadership: Become a recognized expert within the company and potentially the industry for integrating AI into product design and development workflows.

• Strategic Influence: Directly influence product strategy and business outcomes by translating user needs and design innovation into tangible business value.

• Skill Development: Deepen expertise in areas like system architecture, AI applications in design, advanced user research, and data analysis within a fast-paced scale-up environment.

• International Exposure: Gain broad experience working with diverse user groups and markets across 30 countries.

📝 Enhancement Note: This role offers a substantial opportunity for an experienced designer to make a significant mark, not just on the product, but on the company's design strategy and capabilities. The "ownership" and "challenge of scalability" points directly to growth potential for someone who can build and lead.

🌐 Work Environment

Office Type: Dayuse operates from modern offices located in the 9th arrondissement of Paris, described as being in a "super vibrant neighborhood with everything nearby." The environment is conducive to collaboration, with teams being multi-cultural and engaged.

Office Location(s): The primary office is located at 4 Bd Poissonnière, 75009 Paris, France. This central Paris location offers excellent accessibility and a lively urban setting.

Workspace Context:

• Collaborative Design: The role emphasizes close collaboration with Product Managers, Developers, and Brand teams, suggesting an open and interactive workspace designed to foster teamwork.

• Technology & Tools: Access to a budget for research and testing tools, and the expectation to leverage a modern tech stack including AI tools, analytics platforms, and design software.

• Team Interaction: Opportunities for regular interaction with diverse, multi-cultural teams through daily work, company events, and onboarding programs.

Work Schedule: The standard work schedule is 40 hours per week. The hybrid work policy allows for up to 2 days of remote work per week, offering a balance between in-office collaboration and flexible work arrangements.

📝 Enhancement Note: The office location and description suggest a modern, employee-friendly workplace. The hybrid model caters to contemporary work preferences, while the emphasis on in-office collaboration for certain activities (like presentations) ensures strong team cohesion.

📄 Application & Portfolio Review Process

Interview Process:

• 1st Interview (Visio - 45 min): Initial screening with Thomas, the Talent Acquisition Manager, to assess cultural fit and basic qualifications.

• 2nd Interview (Visio): Discussion with Matthieu, the CPO, focusing on product vision, strategic thinking, and alignment with the role's objectives.

• Case Study & Portfolio Presentation (Remote/Home-based): Candidates will be given a case study to complete and prepare a presentation of their portfolio, demonstrating their skills and experience.

• Presentation (On-site): A live presentation of the case study and portfolio to the CPO and COO (Iscliff). This is a crucial step to assess communication skills, strategic thinking, and problem-solving abilities in person.

• Final Interview (On-site): An exchange with a Lead Developer and a Product Manager from the team to evaluate technical fit, team collaboration potential, and understanding of the product development process.

Portfolio Review Tips:

• Strategic Storytelling: Frame your portfolio projects not just as design outputs, but as strategic solutions to business problems. Clearly articulate the problem, your process, the trade-offs you made, and the measurable impact (ROI).

• Design System Productization Focus: If you have experience with Design Systems, highlight how you approached it as a product itself – its roadmap, user (internal developers/PMs), and how it scaled.

• AI & Data Integration: Showcase how you've incorporated AI or data analysis into your design process. Quantify improvements achieved through A/B testing or other data-driven optimizations.

• User Research Depth: Demonstrate a thorough understanding of user needs, showing how research directly influenced your design decisions and outcomes.

• Clarity & Conciseness: Prepare a focused presentation that clearly communicates your most relevant work. Be ready to discuss your thought process and rationale behind key decisions.

Challenge Preparation:

• Understand the Business: Thoroughly research Dayuse's business model, target audience (B2C and B2B), market position, and strategic goals (e.g., doubling activity, modular platform, data-driven).

• Anticipate Design Problems: Consider potential challenges in scaling a marketplace, personalizing user experiences, or integrating AI. Think about how you would approach these as a Principal Product Designer.

• Prepare for "Why": Be ready to articulate the "why" behind your design choices, leveraging both user insights and business objectives.

• Stakeholder Perspective: Consider how you would communicate complex design concepts and their business impact to different stakeholders, including C-level executives.

📝 Enhancement Note: The interview process is rigorous, combining remote screening with an on-site presentation to senior leadership. The portfolio and case study presentation are critical evaluation points, emphasizing strategic thinking and demonstrable impact over purely aesthetic design.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Proficiency in industry-standard tools such as Figma (highly likely given modern scale-up environments), Sketch, or Adobe XD is expected.

• Design System Management: Tools and methodologies for building and maintaining scalable Design Systems (e.g., using tokens, component libraries).

• AI Integration Tools: Familiarity with platforms or APIs for integrating Generative AI (e.g., OpenAI, Midjourney for inspiration) and Predictive AI models.

Analytics & Reporting:

• Web Analytics: Experience with platforms like Google Analytics, Mixpanel, or Amplitude for tracking user behavior and conversion metrics.

• Data Analysis: Ability to use data to inform decisions, potentially including SQL for direct database querying.

• A/B Testing Platforms: Familiarity with tools for setting up and analyzing A/B tests (e.g., Optimizely, VWO, or in-house solutions).

CRM & Automation:

• CRM Systems: While not explicitly mentioned, understanding how design impacts CRM data and user journeys is beneficial.

• Integration Tools: Awareness of how design interfaces connect with backend systems and APIs.

• Code Connect / MCP Server: Specific mention of these tools suggests familiarity with design-to-code integration workflows.

📝 Enhancement Note: The emphasis on AI, data analysis, and design-to-code integration points towards a modern, technically sophisticated design stack. Candidates should highlight any experience with these specific areas and demonstrate a willingness to adapt to Dayuse's evolving technology landscape.

👥 Team Culture & Values

Operations Values:

• Plurality & Diversity: Dayuse values a diverse workforce, encouraging different perspectives and backgrounds.

• Meritocracy: Emphasis on individual contributions and the ability to earn recognition through performance and impact.

• Humility: Acknowledging that growth comes from learning and being open to feedback.

• Service Excellence: A commitment to providing outstanding experiences for both users and partners.

• Ambition: A drive for growth and transformation, reflected in their business goals and product innovation.

• Ownership: Empowering individuals to take full responsibility for their projects and outcomes.

• Outcome-Oriented: Focus on delivering measurable value and solving real problems, rather than just completing tasks.

Collaboration Style:

• Cross-functional Integration: The role requires seamless collaboration with Product Managers, Developers, and Brand teams, suggesting a partnership-oriented approach.

• Open Communication: Encouraging the sharing of ideas, feedback, and insights across teams, facilitated by data and a global insights repository.

• Agile & Iterative: Working within squads likely means an agile, iterative process involving frequent communication and adaptation.

• Stakeholder Engagement: Proactively engaging with stakeholders and C-level executives to present findings, advocate for design solutions, and ensure alignment.

📝 Enhancement Note: Dayuse emphasizes a culture of growth, impact, and collaboration. The ideal candidate will be proactive, data-driven, and able to effectively communicate and influence across different teams and levels of the organization.

⚡ Challenges & Growth Opportunities

Challenges:

• Establishing Design Function: As the first Principal Product Designer, you'll be responsible for building and scaling the design function, processes, and team from the ground up. This requires strategic vision and execution.

• AI Integration Complexity: Effectively integrating cutting-edge AI technologies into user experiences and workflows presents technical and ethical challenges.

• Global Scalability: Designing for 30 diverse countries requires deep understanding of cultural nuances, market variations, and technical constraints.

• Balancing Brand & UX: Harmonizing a strong brand identity with optimal user experience across a complex marketplace.

• Data Interpretation & Action: Translating large volumes of data and user insights into actionable design improvements.

Learning & Development Opportunities:

• Strategic Design Leadership: Develop skills in setting design strategy, building design systems, and leading design initiatives within a growing company.

• AI in Design: Gain hands-on experience and expertise in applying AI to product design and user experience.

• International Product Development: Deepen understanding of global market dynamics and user behaviors.

• Data-Driven Optimization: Hone skills in data analysis, A/B testing, and performance measurement.

• Cross-functional Influence: Enhance abilities in stakeholder management and influencing business decisions through design.

📝 Enhancement Note: The challenges are significant but directly tied to the growth opportunities. This role is ideal for someone who thrives in ambiguity, enjoys building, and wants to push the boundaries of product design with new technologies.

💡 Interview Preparation

Strategy Questions:

• "How would you approach productizing Dayuse's Design System to ensure scalability across 30 countries and multiple product lines?" (Focus on modularity, governance, and developer adoption.)

• "Describe a scenario where you used generative or predictive AI to significantly enhance a user experience or automate a workflow. What were the challenges and outcomes?" (Highlight your understanding of AI applications and impact.)

Company & Culture Questions:

• "Based on your research, how do you see your role as the first Principal Product Designer contributing to Dayuse's culture of 'Plurality, Merit, Humility, Service Excellence, and Ambition'?" (Connect your values and approach to the company's stated values.)

• "How would you foster a strong collaboration between Design, Product Management, and Engineering teams at Dayuse, especially given the hybrid work model?" (Showcase your understanding of cross-functional teamwork and communication.)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly outline the problem, your role, the process, the key decisions and trade-offs, and the measurable results. Use visuals effectively.

• Highlight Systemic Thinking: Emphasize projects where you built frameworks, processes, or systems (like Design Systems) rather than just individual features.

• Showcase AI/Data Experience: Ensure any relevant projects clearly demonstrate your proficiency with AI tools or data analysis for optimization.

• Be Ready for Deep Dives: Prepare to answer detailed questions about your process, rationale, and the challenges you faced. Demonstrate your ability to think critically and adapt.

• Connect to Dayuse: Where possible, tailor your examples or commentary to relate to Dayuse's business, challenges, and goals.

📝 Enhancement Note: Preparation should focus on demonstrating strategic thinking, ownership, and a data-driven, AI-informed approach. Be ready to articulate your process, rationale, and measurable impact, tying your experience back to Dayuse's specific needs and culture.

📌 Application Steps

To apply for this Product Designer position:

• Submit your application through the Dayuse careers portal via the provided URL.

• Portfolio Customization: Curate your portfolio to prominently feature projects that demonstrate your experience with Design Systems as a product, AI integration in design, user research leadership, and data-driven optimization through A/B testing. Prepare case studies that highlight strategic thinking and measurable business impact.

• Resume Optimization: Tailor your resume to highlight keywords such as "Product Design," "Design System," "AI," "User Research," "Data-Informed," "Scale-up," and "International." Quantify your achievements wherever possible.

• Interview Preparation: Practice articulating your design process, strategic rationale, and project outcomes. Prepare specific examples for the interview questions, especially those related to building design functions, leveraging AI, and driving business growth. Rehearse your portfolio presentation.

• Company Research: Thoroughly research Dayuse's business model, target audience, recent news, and company culture. Understand their ambitions for growth and how design can contribute to achieving them.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions tailored for a Product Design role within a scale-up. Specific details regarding contractor benefits, salary, and exact tool requirements should be confirmed directly with Dayuse during the application process.