Product Designer Senior H/F

📍 Job Overview

Job Title: Product Designer Senior H/F

Company: NEXTON

Location: Lille, Hauts-de-France, France

Job Type: Temps complet (Full-time)

Category: Product Design / UX/UI Operations

Date Posted: 2026-09-21

Experience Level: 5-10 years (Senior)

Remote Status: On-site

🚀 Role Summary

• Lead and mentor a team of UX/UI designers, fostering a collaborative and high-performing design environment.

• Drive the product design strategy and vision, aligning user needs with business objectives in close partnership with Product Managers.

• Oversee user research initiatives, translating insights into actionable design decisions and optimized user journeys.

• Ensure the functional and visual coherence across the entire user experience, maintaining brand consistency and usability standards.

• Champion an "UX-first" approach, advocating for user-centric design principles throughout the product development lifecycle.

📝 Enhancement Note: This role is positioned as a Senior Product Designer with significant team leadership and strategic responsibilities. The "H/F" designation indicates it's open to all genders. The focus on "IT UX/UI design" within the client's IT department suggests a role deeply embedded in technology product development and innovation, requiring strong collaboration with engineering and product management.

📈 Primary Responsibilities

• Supervise and mentor a team of UX/UI designers, providing guidance, feedback, and professional development opportunities.

• Lead and actively participate in user research sessions to identify user needs, pain points, and opportunities for product enhancement.

• Define and champion the overarching design strategy, ensuring alignment with product roadmaps and business goals.

• Analyze user testing results and qualitative/quantitative data to inform design decisions and iterate on product features.

• Ensure the functional and visual consistency of the user experience across all touchpoints and product lines.

• Propose and implement continuous improvement initiatives to optimize product performance and user satisfaction.

• Rapidly prototype and test design ideas using wireframes and interactive prototypes to validate concepts.

• Design polished, accessible, and technically feasible final mockups for seamless integration by development teams.

📝 Enhancement Note: The responsibilities highlight a blend of leadership (supervision, mentoring, strategy definition) and hands-on design execution (user research, prototyping, mockups). The emphasis on "optimizing performances" and "continuous improvement" points to a data-driven approach to design operations.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Design, HCI, Computer Science, or a related field is typically expected for senior roles.

Experience: Minimum of 5 years of significant industry experience as a Product Designer, with a demonstrated product vision and experience in an industrial context.

Required Skills:

• Expertise in Team Management and Design Leadership.

• Proficient in User Research methodologies and synthesis of findings.

• Strong understanding and application of Design Systems.

• Skilled in conducting and analyzing User Testing sessions.

• Expert proficiency with design tools: Figma, Sketch, and Adobe Creative Suite.

• Solid grasp of Agile methodologies and their application to design processes.

• Deep understanding of UX principles and a strong UX-first mindset.

• Experience in crafting product strategy and roadmaps.

• Ability to create wireframes and interactive prototypes. Preferred Skills:

• Fluency in English (as stated, a valued asset).

• Experience in large-scale enterprise environments or with major clients (e.g., SNCF, Orange, BNP Paribas).

• Familiarity with accessibility standards (WCAG).

• Experience in mentoring junior designers.

• Understanding of front-end development principles.

📝 Enhancement Note: The requirements are very specific about tool proficiency and core design competencies. The "vision produit" (product vision) is a critical aspect, suggesting the need for a candidate who can think strategically about the product's future and its impact on users and the business.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing a minimum of 5 years of product design experience, with a strong emphasis on a product-centric approach.

• Demonstrations of leadership in design, including examples of mentoring teams or leading design initiatives.

• Case studies detailing the end-to-end design process for complex projects, from user research to final implementation.

• Evidence of successful application of Design Systems and ensuring design consistency across multiple products or features.

• Examples of user research methodologies employed and how insights were translated into design solutions.

• Prototypes and wireframes that clearly illustrate the user journey and interaction design. Process Documentation:

• Showcase the ability to document design processes, including user research protocols, design sprints, and iteration cycles.

• Provide examples of how design strategies were defined and communicated to cross-functional teams.

• Detail how design outcomes were measured against key performance indicators (KPIs) and business objectives.

📝 Enhancement Note: For a senior role, the portfolio is paramount. It must go beyond just showcasing visual design to demonstrating strategic thinking, leadership, process mastery, and the ability to drive measurable impact through design. The "UX-first" and "product vision" requirements suggest a need for case studies that highlight user-centric problem-solving and strategic product thinking.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for a Senior Product Designer with 5-10 years of experience in Lille, France, the estimated annual gross salary would likely range from €50,000 to €70,000. This estimate considers the seniority of the role, the cost of living in Lille, and the typical compensation for specialized tech roles in France.

Benefits:

• Professional development communities for continuous learning and networking.

• Regular Meetups to share knowledge and foster skill development.

• Comprehensive Training programs to support career growth and upskilling.

• Sports and social events to promote employee well-being and team cohesion.

• Sustainable mobility allowance to support eco-friendly commuting.

• Latest generation smartphone provided for professional use.

• Full-time employment contract (CDI).

Working Hours: 40 hours per week, typical for full-time employment in France.

📝 Enhancement Note: The salary range is an estimation based on general market data for senior design roles in France. Actual compensation may vary based on specific experience, negotiation, and the client's internal compensation structure. The benefits package is quite comprehensive, focusing on professional development, well-being, and practical perks.

🎯 Team & Company Context

🏢 Company Culture

Industry: Digital Transformation Consulting, IT Services, and Product Development. NEXTON operates at the intersection of consulting, creative factory, and IT services, serving major clients like SNCF, Orange, and BNP Paribas. This indicates a dynamic environment focused on innovation and digital strategy execution.

Company Size: Over 450 experts. This signifies a medium-to-large sized company with a substantial network of professionals, offering opportunities for cross-pollination of ideas and diverse project exposure.

Founded: 2011. A relatively young but established company, suggesting a blend of agile startup culture with mature operational processes.

Team Structure:

• The role is within the IT UX/UI design department of a client, not directly within NEXTON's internal structure, though NEXTON facilitates the placement. This suggests the designer will be integrated into a client's IT department.

• The Senior Product Designer will lead a team of UX/UI designers.

• Collaboration is expected with Product Managers and technical integration teams. Methodology:

• Agile methodologies are explicitly mentioned.

• An "UX-first" approach centered on the user journey is a core principle.

• Data-driven decision-making through user research and test result analysis.

• Emphasis on prototyping and iterative design.

Company Website: [NEXTON Website - Likely nexton.com, though not explicitly provided in the raw data, it's a common domain pattern.]

📝 Enhancement Note: The company culture at NEXTON appears to be knowledge-sharing and development-focused, with strong communities and learning opportunities. The role itself is client-facing, meaning the candidate will experience the client's specific IT and product development culture while being supported by NEXTON's resources.

📈 Career & Growth Analysis

Operations Career Level: Senior Product Designer. This level implies significant autonomy, responsibility for team guidance, and strategic input into product development. It's a leadership track within the design function.

Reporting Structure: The Senior Product Designer will report to a higher-level design or product lead within the client's IT department. They will directly manage a team of UX/UI designers.

Operations Impact: The role's impact is critical, focusing on shaping user experiences for major clients' digital products. Success directly influences user adoption, satisfaction, and ultimately, the business performance of these products. The emphasis on optimization and strategy means the role contributes to business growth and innovation.

Growth Opportunities:

• Leadership Advancement: Potential to move into Lead UX/UI Designer, Head of Design, or Product Management roles within client organizations or NEXTON.

• Skill Specialization: Deepen expertise in specific areas like Design Systems, User Research, or Accessibility through specialized training and project work.

• Cross-Functional Mobility: Opportunity to gain experience in different industries or product types through NEXTON's diverse client base.

• Community Engagement: Active participation in NEXTON's design communities and meetups can lead to mentorship and knowledge sharing roles.

📝 Enhancement Note: This role offers a clear path for career progression, both in terms of design leadership and broader product strategy. The dual support system of NEXTON and the client organization provides a rich environment for growth and development.

🌐 Work Environment

Office Type: The role is on-site within a client's IT UX/UI design department. This implies a professional office setting, likely with open-plan workspaces, meeting rooms, and collaborative zones.

Office Location(s): Lille, Hauts-de-France, France. This specific location will host the primary work environment.

Workspace Context:

• A collaborative environment is expected, given the team leadership and cross-functional collaboration requirements.

• Access to industry-standard design tools (Figma, Sketch, Adobe Creative Suite) and potentially other project management or communication software.

• Opportunities for direct interaction with a team of designers, Product Managers, and potentially development teams.

• The client's specific company culture will shape the day-to-day workspace experience.

Work Schedule: Standard 40-hour work week. While the role is on-site, the "Agile" and "UX-first" approach might imply some flexibility in task management and focus time, but core hours will likely be office-based.

📝 Enhancement Note: The on-site nature of the role is a key characteristic. While there are benefits like a mobility allowance, the expectation is regular presence at the client's Lille office. The workspace will be shaped by the client's IT department's setup and culture.

📄 Application & Portfolio Review Process

Interview Process:

1. Initial Screening: A review of your CV and portfolio to assess experience, skills, and alignment with the role's requirements.

2. Technical Interview: Discussion focusing on design philosophy, user research methodologies, design system application, and proficiency with tools like Figma. Expect to walk through specific case studies from your portfolio.

3. Team/Manager Interview: Assessment of leadership potential, mentoring approach, collaboration style, and understanding of Agile principles. This may involve a discussion about how you would handle specific team or project challenges.

4. Client Presentation/Final Interview: Potentially a presentation of a case study or a strategic design proposal to client stakeholders, followed by a final interview to assess cultural fit and overall suitability.

Portfolio Review Tips:

• Highlight Leadership: Clearly showcase instances where you've led design projects, mentored junior designers, or influenced design strategy.

• Process Over Polish: While polished visuals are good, focus on articulating your thought process, the problem you solved, the methodologies you used (research, testing), and the impact of your design decisions.

• Quantify Impact: Whenever possible, use metrics to demonstrate the success of your designs (e.g., improved conversion rates, reduced task completion time, increased user satisfaction scores).

• Design System Focus: Include examples of how you've worked with or contributed to Design Systems, emphasizing consistency and scalability.

• Tool Proficiency: Be prepared to discuss your expertise with Figma, Sketch, and Adobe Creative Suite, perhaps demonstrating specific features or workflows.

Challenge Preparation:

• Be ready for a potential design challenge, which might involve critiquing an existing interface, proposing improvements for a hypothetical scenario, or outlining a user research plan.

• Practice articulating your design rationale clearly and concisely, especially under time constraints.

• Prepare to discuss how you would integrate with an existing Agile team and collaborate effectively with Product Managers and developers.

📝 Enhancement Note: The interview process likely involves multiple stages to assess both technical design skills and leadership capabilities. A strong, well-curated portfolio that demonstrates strategic thinking and leadership is crucial for advancing.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Expert mastery required for UI design, prototyping, and collaboration.

• Sketch: Expert mastery required, often used in conjunction with Figma or for specific project workflows.

• Adobe Creative Suite: Expert mastery required, likely for asset creation, image editing, and potentially motion graphics for prototypes.

Analytics & Reporting:

• Familiarity with user analytics platforms (e.g., Google Analytics, Amplitude, Mixpanel) to understand user behavior and inform design decisions.

• Experience with A/B testing tools and interpreting results. CRM & Automation:

• While not directly a CRM role, understanding how user data from CRM systems might influence design and vice-versa is beneficial.

• Familiarity with project management tools (e.g., Jira, Asana, Trello) used in Agile environments.

📝 Enhancement Note: The explicit mention of Figma, Sketch, and Adobe Creative Suite indicates these are non-negotiable technical skills. The role likely involves working within a client's existing technology ecosystem, so adaptability and a broad understanding of design-related tools are key.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A fundamental "UX-first" approach, prioritizing user needs and journeys in all design decisions.

• Collaboration: Strong emphasis on teamwork, particularly with Product Managers and development teams, within an Agile framework.

• Innovation: A drive to create optimized, cutting-edge digital solutions for major clients.

• Continuous Improvement: A commitment to iterating and enhancing products based on data and user feedback.

• Expertise & Mentorship: Valuing deep design knowledge and fostering growth through mentorship and knowledge sharing.

Collaboration Style:

• Highly collaborative, working closely with Product Managers to define strategy and with UX/UI designers for execution.

• Cross-functional integration with development teams for seamless implementation of designs.

• A culture of constructive feedback and iterative refinement of designs.

• Knowledge sharing through meetups and internal communities is encouraged.

📝 Enhancement Note: The values emphasize a proactive, user-focused, and collaborative approach. The candidate should demonstrate an ability to thrive in a team-oriented, Agile environment and contribute positively to the design community.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Client Demands with User Needs: Effectively advocating for user experience while meeting client-specific business objectives and technical constraints.

• Managing and Mentoring a Design Team: Successfully guiding and developing a team of designers, ensuring quality and consistency across their work.

• Navigating Client IT Structures: Integrating into a specific client's IT department and understanding their processes, politics, and technology stack.

• Keeping Pace with Design Trends: Continuously updating knowledge on new design tools, methodologies, and user expectations in a rapidly evolving digital landscape.

Learning & Development Opportunities:

• Advanced Design Leadership Training: Opportunities to hone management and strategic planning skills.

• Specialized UX/UI Workshops: Deep dives into areas like accessibility, UX research advanced techniques, or specific design system management.

• Exposure to Diverse Projects: Working with NEXTON's varied client portfolio provides exposure to different industries and product challenges.

• Mentorship Programs: Both formal and informal mentorship opportunities within NEXTON's expert communities.

📝 Enhancement Note: The challenges are typical for a senior, client-facing role, requiring strong problem-solving and interpersonal skills. The growth opportunities are robust, leveraging both NEXTON's structure and the client's projects.

💡 Interview Preparation

Strategy Questions:

• "Describe your approach to defining a product design strategy for a new feature or product. How do you align it with business goals and user needs?" (Prepare with examples of strategy frameworks and alignment processes.)

• "How do you foster a collaborative environment within a design team and ensure effective communication with Product Managers and developers?" (Focus on your mentoring style, feedback mechanisms, and cross-functional collaboration examples.)

• "Walk us through a time you had to make a difficult design decision based on user research or testing feedback that conflicted with stakeholder opinions. How did you manage it?" (Prepare a STAR method answer emphasizing data-driven advocacy.) Company & Culture Questions:

• "What do you know about NEXTON and our client's industry? How do you see your role contributing to their digital innovation goals?" (Research NEXTON's mission, clients, and the client's business.)

• "How do you embody an 'UX-first' philosophy in your daily work and team leadership?" (Connect your personal values and past experiences to this principle.)

• "How do you measure the success of your design work and its impact on the product and business?" (Be ready to discuss KPIs, user metrics, and ROI.) Portfolio Presentation Strategy:

• Structure Your Case Studies: For each case study, clearly outline the problem, your role, the process (research, ideation, design, testing), the solution, and the quantifiable results.

• Emphasize Leadership: Highlight specific contributions where you led, mentored, or influenced strategic direction.

• Demonstrate Tool Proficiency: Be ready to show specific workflows or features in Figma/Sketch that highlight your expertise.

• Tell a Story: Make your portfolio presentation engaging by weaving a narrative around each project, focusing on the challenges and your problem-solving journey.

📝 Enhancement Note: Interview preparation should focus on demonstrating not only design skill but also strategic thinking, leadership capability, and a deep understanding of the product development lifecycle within an Agile context.

📌 Application Steps

To apply for this Product Designer Senior H/F position:

• Submit your application through the provided job link on SmartRecruiters.

• Curate your Portfolio: Ensure your portfolio prominently features case studies demonstrating leadership, strategic product thinking, user research, and proficiency with Figma, Sketch, and Adobe Creative Suite. Tailor the selected projects to highlight experience relevant to large clients and industrial contexts.

• Optimize Your Resume: Clearly list your 5+ years of experience, emphasizing achievements in team management, user research, design systems, and Agile environments. Use keywords from the job description.

• Prepare Your Presentation: Practice walking through 2-3 key portfolio projects, focusing on your strategic contributions, problem-solving process, and the measurable impact of your designs. Be ready to discuss your leadership and mentoring philosophy.

• Research NEXTON and the Client: Understand NEXTON's mission and client portfolio. Research the client's industry and known digital products to demonstrate genuine interest and understanding of their 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.