Product Designer Mobile Senior (H/F)

📍 Job Overview

Job Title: Product Designer Mobile Senior (H/F)

Company: CITECH

Location: Issy-les-Moulineaux, Île-de-France, France

Job Type: Temps complet (Full-time)

Category: Product Design / UX/UI

Date Posted: 2026-09-16

Experience Level: Senior (4+ years)

Remote Status: On-site

🚀 Role Summary

• Lead the end-to-end product design lifecycle for a B2C mobile application, from Discovery to Delivery, ensuring a user-centric approach.

• Collaborate closely with cross-functional teams including Product, Tech, QA, and UX Research within an Agile framework to drive product innovation.

• Translate product vision and roadmap objectives into compelling user experiences, specifically tailored for iOS and Android platforms.

• Own and evolve the Design System, ensuring consistency and quality across all interface designs and user flows.

• Champion best practices in Product Design, mobile-specific UX/UI, and accessibility, contributing to a high-performing Design community.

📝 Enhancement Note: This role is a senior-level Product Designer focused exclusively on mobile applications within a B2C context. The emphasis on "Discovery" and "Delivery" highlights a full-cycle product design responsibility. The company's description as an ESN (IT and Digital Services Company) suggests the designer will be embedded within client projects, requiring adaptability and strong client-facing communication skills. The "communauté Design structurée" indicates a supportive environment for design professionals.

📈 Primary Responsibilities

• Translate product vision and roadmap priorities into effective user experiences for a B2C mobile application.

• Actively challenge product needs and contribute to the definition and optimization of application user journeys and flows.

• Lead and manage Discovery phases in close partnership with Product Managers and stakeholders.

• Leverage user research findings and data analytics to inform and justify design decisions.

• Create detailed user flows, wireframes, high-fidelity mockups, and interactive prototypes for both iOS and Android platforms.

• Ensure a high standard of UI quality and design consistency, adhering to platform-specific guidelines and accessibility principles.

• Actively contribute to, and evolve, the existing Design System to maintain a cohesive and scalable product interface.

• Collaborate effectively with developers during the implementation phase, providing clear design specifications and support.

• Participate in quality assurance (QA) and user acceptance testing (UAT) to ensure the delivered product matches design intent.

• Engage with various stakeholders to gather feedback and iterate on design solutions.

• Conduct continuous research and stay updated on the latest Product Design trends, mobile UX/UI best practices, and emerging technologies like AI.

📝 Enhancement Note: The responsibilities clearly outline a senior-level role requiring ownership of the entire design process, from strategic ideation through to implementation oversight. The mention of "Discovery" and "Delivery" implies a need for strategic thinking and hands-on execution. The emphasis on adapting experiences for both iOS and Android, along with Design System evolution, points to a need for deep mobile design expertise and a systematic approach.

🎓 Skills & Qualifications

Education: Higher education degree (Grande École, Engineering School, Business School, or Master's in Design) is required.

Experience: Minimum of 4 years of experience in a similar Product Design role, ideally within a B2C, mass-market, or e-commerce digital environment.

Required Skills:

• Proficiency in Product Design methodologies and frameworks.

• Expertise in user research techniques and synthesis of findings.

• Strong UX and UI design skills, including wireframing, user flow mapping, and interaction design.

• Deep understanding of iOS and Android design guidelines and platform-specific user experience nuances.

• Proven ability to design and prototype user journeys and interfaces, from low-fidelity concepts to high-fidelity mockups.

• Experience working with and contributing to Design Systems.

• Excellent communication skills, essential for presenting design concepts and collaborating with diverse teams.

• Professional English proficiency for presentations and international interactions. Preferred Skills:

• Experience with AI-related topics and their application in product design.

• Familiarity with e-commerce or B2C digital product environments.

• Experience working in Agile development teams.

• Knowledge of accessibility standards and best practices in mobile design.

📝 Enhancement Note: The requirement for "professional English" is critical given the international dimension mentioned. The "4+ years" experience, coupled with the senior title, suggests the need for demonstrated leadership in design and strategic thinking, not just execution. The preference for AI experience indicates the company is forward-looking and may be exploring innovative applications.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase end-to-end product design case studies demonstrating ownership from concept to launch.

• Highlight specific mobile application design projects for both iOS and Android platforms.

• Include examples of user research, persona development, and user journey mapping.

• Present wireframes, mockups, and interactive prototypes showcasing detailed UI design and interaction patterns.

• Demonstrate experience in utilizing and evolving a Design System.

• Quantify impact where possible, showing how design decisions led to improved user engagement, conversion, or satisfaction metrics. Process Documentation:

• Detail your design process for mobile applications, including phases like research, ideation, prototyping, testing, and iteration.

• Explain how you collaborate with Product Managers and Developers throughout the design and implementation lifecycle.

• Illustrate your approach to user testing and incorporating feedback into design iterations.

• Provide examples of how you've contributed to or managed a Design System, including its structure and maintenance.

📝 Enhancement Note: A strong portfolio is paramount for this role. It should not only display visual design skills but also a deep understanding of the product design process, user-centered methodologies, and mobile platform specifics. Candidates should be prepared to articulate their design decisions and their impact on business objectives.

💵 Compensation & Benefits

Salary Range: €45,000 - €60,000 per year (for permanent roles)

Freelance Rate: €400 - €480 per day

Benefits:

• Personalized career follow-up and support throughout your mission.

• Opportunities for professional development and skill enhancement.

• Exposure to an international work environment and diverse projects.

• Work on a high-visibility B2C digital product with significant user reach.

• Dedicated work on a mobile application, focusing on specialized UX/UI challenges.

• Integration into a structured Design community for knowledge sharing and collaboration.

Working Hours: The standard working hours are 40 hours per week, typical for a full-time role in France.

📝 Enhancement Note: The salary range provided is for permanent employment. The freelance rate is competitive for senior design roles in the Paris region. Benefits focus on professional growth and project experience, aligning with CITECH's positioning as an ESN that supports consultant development.

🎯 Team & Company Context

🏢 Company Culture

Industry: Information Technology and Services (ESN - Entreprise de Services du Numérique) / Digital Consulting. CITECH specializes in IT and digital roles, placing consultants on strategic projects.

Company Size: CITECH is described as an "ESN à taille humaine" (human-sized ESN), suggesting a company culture that values proximity and personalized relationships, likely ranging from 50-250 employees.

Founded: The founding date is not specified, but the company positions itself as experienced in IT and digital consulting, focusing on quality and personalized support.

Team Structure:

• The Product Designer will be part of a multidisciplinary squad operating in Agile methodology, including Product Managers, Developers (iOS/Android), QA Engineers, and UX Researchers.

• They will also be integrated into a structured Design community within CITECH, fostering collaboration and knowledge sharing among design professionals.

• Reporting lines will likely involve a direct manager within CITECH for HR and career development, and a functional lead within the client's product team for project-specific guidance. Methodology:

• CITECH emphasizes proximity with operational teams and quality of missions, suggesting a hands-on, collaborative approach.

• The company focuses on innovation and finding concrete solutions for client projects.

• Agile methodologies are central to how their client teams operate, requiring flexibility and iterative design practices.

Company Website: citechglobal.com (derived from domain)

📝 Enhancement Note: CITECH's "human-sized" approach suggests a supportive environment where individual contributions are recognized. The ESN model means the designer will experience diverse project environments, requiring adaptability and a strong client-service orientation. The emphasis on "proximité avec les équipes opérationnelles" highlights the importance of seamless integration into client project teams.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior Product Designer role. It signifies a level of expertise where individuals are expected to lead design initiatives, mentor junior designers (implicitly, within the client team or design community), and contribute strategically to product development. The focus is on mobile B2C applications, requiring specialized skills.

Reporting Structure: The designer will report to a hiring manager or team lead within CITECH for administrative and career development purposes. Functionally, they will work within an Agile squad at the client's organization, reporting to a Product Manager or Lead Designer for project-specific tasks and direction. Collaboration within the "communauté Design" offers peer support and learning.

Operations Impact: As a Senior Product Designer, the role has a direct impact on the user experience of a high-visibility B2C mobile application. Successful design outcomes will influence user adoption, engagement, retention, and potentially conversion rates, directly contributing to the product's business objectives and success in the market. The designer's strategic input during the Discovery phase can shape the product roadmap.

Growth Opportunities:

• Skill Specialization: Deepen expertise in mobile UX/UI design for both iOS and Android, advanced prototyping techniques, and Design System architecture.

• Leadership: Potential to lead design efforts on complex projects, mentor junior designers, and contribute to design strategy discussions.

• Cross-functional Exposure: Gain experience working with various stakeholders and understanding different facets of product development (tech, marketing, business).

• Industry Breadth: Work on diverse projects within CITECH's client portfolio, potentially exploring new sectors or technologies like AI.

• Community Engagement: Contribute to the CITECH Design community, sharing knowledge and participating in design critiques and workshops.

📝 Enhancement Note: The growth trajectory for a Senior Product Designer at an ESN like CITECH often involves moving into Lead Designer roles, Design Manager positions, or specializing in specific areas like UX Research, Interaction Design, or Design Systems. The "international dimension" and exposure to AI also present unique growth avenues.

🌐 Work Environment

Office Type: The role is primarily on-site in Issy-les-Moulineaux. This implies working within the client's office environment or a CITECH office, depending on the project arrangement. The description of a "multidisciplinary squad functioning in Agile" suggests a collaborative, dynamic office setting.

Office Location(s): The primary location is Issy-les-Moulineaux, a well-connected business district just outside Paris, France. This area offers modern office spaces and good public transportation links.

Workspace Context:

• Expect a collaborative workspace within an Agile squad, encouraging direct communication and co-creation with Product Managers, Developers, and QA.

• Access to design tools and technologies will be provided by the client or CITECH, likely including industry-standard software for design and prototyping.

• Opportunities for regular interaction with design peers within CITECH's Design community, fostering a sense of belonging and continuous learning outside the immediate project team.

Work Schedule: A standard 40-hour work week is expected. While Agile environments can sometimes involve flexible hours, the on-site nature suggests adherence to typical office hours, with potential for some flexibility depending on the client's specific policies.

📝 Enhancement Note: The on-site requirement in Issy-les-Moulineaux is a key factor for candidates. The environment is described as collaborative and Agile, indicating a fast-paced and interactive setting. The proximity to Paris offers access to a vibrant professional ecosystem.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter from CITECH will likely conduct an initial call to assess basic qualifications, experience, and cultural fit, and to explain the role and CITECH's model.

• Technical Interview / Portfolio Review: This will be a core part of the process, focusing on your Product Design experience, mobile expertise, and your portfolio. Expect to walk through 2-3 key case studies, discussing your process, design decisions, challenges, and outcomes. This may involve a Product Manager or Lead Designer from the client team.

• Skills Assessment / Design Challenge (Potential): You might be asked to complete a small design exercise or a take-home challenge to assess your problem-solving skills, design thinking, and ability to apply your knowledge to a specific scenario.

• Final Interview: A discussion with a senior member of CITECH or the client's leadership to confirm fit, discuss career aspirations, and finalize terms.

Portfolio Review Tips:

• Focus on Mobile B2C: Prioritize case studies that clearly demonstrate your experience with mobile applications (iOS and Android) and B2C user experiences.

• Showcase Process: For each case study, clearly articulate your role, the problem, your design process (research, ideation, prototyping, testing), your specific contributions, and the impact of your work (quantifiable metrics are a plus).

• Highlight Collaboration: Explain how you worked with Product, Tech, and QA teams.

• Design System Expertise: Include examples of how you've used, contributed to, or evolved a Design System.

• Prepare for Questions: Be ready to answer "why" behind your design choices, how you handled conflicting feedback, and how you ensured accessibility and platform-specific best practices.

Challenge Preparation:

• If a design challenge is given, thoroughly understand the brief.

• Focus on demonstrating your problem-solving approach and design process, not just the final visual output.

• Manage your time effectively and present your solution clearly and concisely, highlighting key decisions and trade-offs.

• Be prepared to discuss your assumptions and how you would validate them with users.

📝 Enhancement Note: The portfolio is critical. Candidates should select case studies that most closely align with the requirements of this specific role (Senior, Mobile, B2C). Demonstrating a structured design process and the ability to articulate design rationale is as important as the visual output. The inclusion of a potential design challenge suggests the company values practical application of skills.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma (highly probable given industry trends), Sketch, Adobe Creative Suite (Illustrator, Photoshop), InVision, Axure RP.

• Design System Management: Tools for documenting and managing design system components and guidelines.

• Collaboration & Project Management: Jira, Confluence, Trello, Asana, Slack.

Analytics & Reporting:

• Tools for user behavior analysis and performance tracking (e.g., Google Analytics, Mixpanel, Amplitude, Firebase Analytics).

• Dashboarding tools for visualizing product performance metrics. CRM & Automation:

• While not directly a designer's primary tool, awareness of CRM (e.g., Salesforce) and marketing automation platforms can be beneficial for understanding the broader business context of a B2C product.

📝 Enhancement Note: Proficiency in Figma is almost a de facto standard for modern product design roles. Experience with mobile-specific design tools and a strong understanding of how design integrates with analytics platforms will be advantageous. The mention of "AI" suggests potential exposure to AI-powered design tools or research in that area.

👥 Team Culture & Values

Operations Values:

• Quality & Expertise: CITECH values high-quality work and deep expertise, reflected in their selection of projects and consultants.

• Proximity & Personalization: A focus on close relationships with consultants and clients, ensuring personalized support and integration.

• Innovation & Solution-Oriented: Encouraging the search for concrete, innovative solutions to client challenges.

• Professional Development: Commitment to fostering skill development and career growth for their consultants.

• Agile & Collaborative: Embracing agile methodologies and fostering teamwork within multidisciplinary squads.

Collaboration Style:

• Cross-functional Integration: The role demands seamless collaboration within a multidisciplinary Agile squad, requiring clear communication and mutual respect between design, product, and engineering.

• Design Community: Participation in CITECH's Design community encourages knowledge sharing, peer feedback, and collective problem-solving among designers.

• Stakeholder Management: The ability to effectively communicate design rationale and gather feedback from diverse stakeholders (product managers, developers, business leads) is crucial.

• Iterative Feedback Loops: Embracing a culture of continuous feedback, both within the squad and from user research, to refine designs iteratively.

📝 Enhancement Note: CITECH's culture emphasizes a strong consultant-client relationship and a supportive internal environment for its employees. The emphasis on "human-sized" and "proximity" suggests a less corporate, more personal approach to business. For a designer, this means being adaptable to client environments while also having a supportive network within CITECH.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Platform Specificity: Effectively designing for both iOS and Android, respecting their unique guidelines while maintaining a cohesive brand experience.

• Translating Vision to Execution: Bridging the gap between high-level product strategy and detailed, implementable UI/UX designs.

• Managing Stakeholder Expectations: Navigating feedback from multiple stakeholders with potentially differing priorities.

• Integrating with Agile Cycles: Adapting design processes to fit within iterative Agile sprints, ensuring timely delivery of design assets.

• Staying Current with Mobile Trends: Rapidly evolving mobile OS features, design patterns, and user expectations require continuous learning.

Learning & Development Opportunities:

• Advanced Mobile Design: Deep dive into platform-specific best practices, new OS features, and emerging mobile interaction patterns.

• Design System Mastery: Develop expertise in building, managing, and scaling complex design systems.

• AI in Design: Explore how AI tools and techniques can enhance the design process or be integrated into products.

• Leadership & Mentorship: Opportunities to guide design initiatives and mentor junior team members.

• Cross-Industry Exposure: Gain experience across different B2C domains through CITECH's diverse client projects.

📝 Enhancement Note: The challenges are typical for a senior mobile designer, emphasizing the need for strong problem-solving skills and adaptability. The growth opportunities highlight pathways for specialization and leadership, supported by CITECH's commitment to professional development and the nature of ESN projects.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for designing a new feature for a B2C mobile app from scratch. How do you ensure it meets user needs and business goals?" (Focus on Discovery, user research, ideation, prototyping, and validation).

• "How do you approach designing for both iOS and Android simultaneously? What are the key differences you consider, and how do you maintain consistency?" (Highlight platform guidelines, common patterns, and your systematic approach).

• "Walk me through a time you had to make a difficult design decision with conflicting stakeholder feedback. How did you resolve it?" (Demonstrate your communication, negotiation, and data-driven decision-making skills). Company & Culture Questions:

• "What interests you about CITECH and working as a consultant on client projects?" (Show enthusiasm for CITECH's model and the opportunity to work on diverse projects).

• "How do you approach integrating into a new Agile team and collaborating with developers and product managers?" (Emphasize your adaptability, communication, and proactive approach).

• "What are your thoughts on the role of AI in product design?" (Prepare a thoughtful response based on your understanding and any stated preferences in the job description). Portfolio Presentation Strategy:

• Structure Your Case Studies: For each case study, clearly define: Problem, Your Role, Process/Solution, Impact/Outcome.

• Quantify Impact: Where possible, use metrics (e.g., increased conversion, reduced bounce rate, improved task completion time) to showcase the effectiveness of your designs.

• Highlight Design System Use: Explicitly mention how you utilized or contributed to a Design System in your projects.

• Be Ready for Deep Dives: Anticipate questions about specific design choices, trade-offs, and how you handled challenges.

• Showcase Mobile Expertise: Ensure your mobile design examples are prominent and discuss platform-specific considerations.

📝 Enhancement Note: Interview preparation should heavily focus on demonstrating your senior-level product thinking, mobile-specific expertise, and ability to collaborate effectively within an Agile, client-facing environment. The portfolio review is the most critical component.

📌 Application Steps

To apply for this Product Designer position:

• Submit your application through the provided link on jobs.smartrecruiters.com.

• Tailor your Resume: Highlight your 4+ years of experience in Product Design, specifically mentioning mobile applications (iOS/Android), B2C/e-commerce environments, Agile methodologies, and your proficiency with key design tools. Quantify achievements where possible.

• Curate your Portfolio: Select 2-3 of your strongest mobile product design case studies that best align with the job requirements (B2C, end-to-end process, iOS/Android). Ensure clear articulation of your process, role, and impact.

• Prepare for Interview Questions: Practice articulating your design process, your approach to mobile-specific challenges, and your collaboration style. Be ready to discuss your portfolio in detail.

• Research CITECH: Understand their business model as an ESN, their values (quality, proximity, innovation), and their focus on consultant development. This will help you tailor your responses to their specific context.

⚠️ 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.