Product Designer confirmé/sénior H/F

📍 Job Overview

Job Title: Product Designer confirmé/sénior H/F

Company: NEXTON

Location: Lille, Hauts-de-France, France

Job Type: Temps complet

Category: Product Design / UX/UI Design

Date Posted: 2026-08-04

Experience Level: Confirmé/Senior (4+ years)

Remote Status: On-site

🚀 Role Summary

• Drive end-to-end product design initiatives, from conceptualization to implementation, focusing on user-centric solutions.

• Collaborate closely with cross-functional teams, including Product Owners and Developers, within an Agile framework to deliver high-impact digital experiences.

• Leverage data analysis and user research methodologies to inform design decisions and optimize user journeys.

• Create and deliver polished, high-fidelity visual designs that adhere to established Design Systems and brand guidelines.

• Apply expertise in UX/UI principles and Design Thinking to solve complex user problems and enhance product usability.

📝 Enhancement Note: This role is clearly for a mid-to-senior level Product Designer, emphasizing a blend of strategic thinking, hands-on design execution, and collaborative Agile project delivery. The focus on data-informed design and adherence to Design Systems points towards a mature product development environment.

📈 Primary Responsibilities

• Conduct comprehensive user research, including needs assessment, experience mapping, and card sorting, to deeply understand user behaviors and pain points.

• Facilitate and lead UX workshops to gather insights and drive collaborative design solutions.

• Translate user insights and data analysis into actionable hypotheses, leading to the creation of effective wireframes and dynamic UX prototypes.

• Execute rigorous user testing on prototypes to validate design concepts and gather feedback for iterative improvements.

• Develop high-fidelity (Hi-Fi) visual designs and interface mockups, ensuring consistency with the company's Design System and brand identity.

• Collaborate with Product Owners and stakeholders to define product requirements and align design solutions with business objectives.

• Work alongside developers to ensure seamless implementation of designs, providing clear specifications and ongoing support.

• Continuously monitor user journey data and performance metrics to identify areas for design optimization and innovation.

• Champion best practices in UX/UI design and contribute to the evolution of the product design process within the Agile team.

• Maintain and contribute to the company's Design System, ensuring its scalability and adherence across projects.

📝 Enhancement Note: The responsibilities highlight a full-cycle design role, requiring not just execution but also strategic input into user research, data interpretation, and process improvement within an Agile context. The emphasis on "cerner les besoins utilisateurs," "suis la Data," and "formuler des hypothèses de solutions" indicates a strong analytical and problem-solving component beyond purely aesthetic design.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a Bachelor's degree in Design, Human-Computer Interaction, Psychology, or a related field is often preferred for senior design roles. Equivalent practical experience will also be considered.

Experience: Minimum of 4 years of professional experience as a UX/UI Designer or Product Designer, with a proven track record of successfully delivering digital products.

Required Skills:

• Deep understanding and practical application of UX research methodologies (e.g., user interviews, persona creation, journey mapping, usability testing).

• Proficiency in UI design principles, visual design, and creating intuitive user interfaces.

• Expertise in Design Thinking methodologies and their application to product development.

• Proven experience working within Agile development environments and collaborating with Product Owners and Developers.

• Strong wireframing and dynamic prototyping skills.

• Mastery of industry-standard design and prototyping tools: Figma, Sketch, Adobe XD.

• Proficiency with the Adobe Creative Suite (e.g., Photoshop, Illustrator).

• Ability to interpret user data and translate it into design solutions.

• Excellent communication, presentation, and interpersonal skills for effective stakeholder collaboration.

• Experience in designing within or contributing to a Design System. Preferred Skills:

• Experience with user journey data analysis and A/B testing.

• Familiarity with front-end development concepts (HTML, CSS, JavaScript) to better collaborate with developers.

• Experience in a consulting or agency environment, working with diverse clients and projects.

• Knowledge of accessibility standards (WCAG) and inclusive design principles.

• Experience with specific UX research techniques like Card Sorting.

📝 Enhancement Note: The requirement for 4+ years of experience and mastery of multiple industry-standard tools (Figma, Sketch, Adobe XD) positions this as a senior-level role. The explicit mention of "Design Thinking" and the detailed breakdown of UX methodologies (audits, experience map, card sorting, data analysis, prototyping, user testing) are key indicators of the expected depth of UX expertise.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing a range of UX/UI design projects, demonstrating end-to-end design process.

• Case studies that clearly articulate the problem statement, your role, the design process, key decisions, and measurable outcomes.

• Examples of user research conducted, wireframes, interactive prototypes, and final visual designs.

• Evidence of working within Agile methodologies and collaborating with development teams.

• Projects that demonstrate adherence to or contribution to Design Systems.

• Demonstrations of how data and user feedback informed design iterations and improvements. Process Documentation:

• Candidates are expected to articulate their design process clearly, particularly how they approach user needs assessment, ideation, prototyping, testing, and implementation within Agile sprints.

• The ability to explain the rationale behind design choices, linking them to user needs, business goals, and data insights, is crucial.

• Documentation of how designs are delivered to development teams, including specifications and ongoing collaboration, is valued.

📝 Enhancement Note: For a senior Product Designer role, a portfolio is paramount. The emphasis on "cerner les besoins utilisateurs," "suis la Data," and "formuler des hypothèses de solutions" implies that portfolio pieces should clearly illustrate the candidate's ability to translate insights into design actions. The mention of "respect d'un Design System" also means showcasing projects that adhere to or build upon design systems.

💵 Compensation & Benefits

Salary Range: Given the senior/confirmed level (4+ years experience), location in Lille, France, and the nature of a consulting/digital innovation firm like NEXTON, the estimated annual gross salary range for a Product Designer H/F in this role is likely between €45,000 and €60,000. This estimate is based on industry benchmarks for senior design roles in France, considering the cost of living in Lille and the company's focus on major clients.

Benefits:

• Dynamic communities for professional networking and support.

• Regular Meetups and events for skill development and knowledge sharing.

• Comprehensive training programs to foster continuous learning and career progression.

• Social and sports events to promote well-being and team cohesion.

• A sustainable mobility package to support commuting and eco-friendly transportation.

• A latest-generation smartphone for professional use.

Working Hours: The job is listed as "Temps complet" (Full-time), which typically implies a standard 35-40 hour work week in France. The Agile methodology suggests a structured yet potentially flexible approach to daily work.

📝 Enhancement Note: Salary estimation is based on French labor market data for senior UX/UI designers in a major city like Lille, considering the company's profile as a digital consulting firm. Benefits are directly extracted from the provided text, highlighting a strong focus on professional development and employee well-being.

🎯 Team & Company Context

🏢 Company Culture

Industry: NEXTON operates within the Digital Transformation, IT Services, and Consulting sector, focusing on digital strategy, design, agile methodologies, product development, and software engineering. They work with large accounts and pure players, indicating a high-impact, innovation-driven environment.

Company Size: With over 450 experts, NEXTON is a significant player in its field, offering a balance between the agility of a smaller agency and the resources of a larger organization. This size suggests opportunities for structured career growth and access to diverse projects.

Founded: Founded in 2011, NEXTON has over a decade of experience, indicating a stable and established company with a proven track record in digital innovation and client partnerships.

Team Structure:

• The Product Design team is part of a larger ecosystem of over 450 experts specializing in digital, design, agile, product, and development.

• Designers work in cross-functional Agile teams, collaborating closely with Product Owners, Business Experts, and Developers.

• The structure encourages a "cabinet de conseil" (consulting firm) spirit combined with the creativity of an agency and the dynamism of an ESN (IT Services Company), suggesting a collaborative and innovative approach. Methodology:

• NEXTON emphasizes Agile methodologies for project delivery.

• The company fosters a culture of continuous learning and knowledge sharing through communities, meetups, and training.

• Design is integrated at all stages of product development, from initial reflection to application, with a strong focus on user experience.

• Data analysis plays a key role in informing design hypotheses and iterative improvements.

Company Website: https://www.nexton.com/

📝 Enhancement Note: The company description positions NEXTON as a hybrid entity, blending consulting, agency creativity, and IT services expertise. This context is vital for a Product Designer, suggesting exposure to varied client challenges and a need to adapt design solutions to different business needs while maintaining high standards.

📈 Career & Growth Analysis

Operations Career Level: This role is designated as "Confirmé/Sénior," indicating a designer with substantial experience (4+ years) who is expected to work autonomously, mentor junior colleagues, and contribute to strategic design decisions. They are expected to lead design initiatives and solve complex problems.

Reporting Structure: While not explicitly detailed, in an Agile environment, designers typically report to a Design Lead, Head of Design, or a Project Manager, while working daily within their cross-functional product team. The collaborative nature suggests close interaction with Product Owners and development leads.

Operations Impact: The Product Designer's impact is critical to enhancing user experience, driving user adoption, and ultimately contributing to the success of digital products for NEXTON's clients. By improving user journeys and creating intuitive interfaces, they directly influence client satisfaction, conversion rates, and overall product effectiveness, thereby impacting revenue and business growth.

Growth Opportunities:

• Skill Specialization: Deepen expertise