UI DESIGNER APP MOBILE H/F

📍 Job Overview

Job Title: UI DESIGNER APP MOBILE H/F

Company: NEXTON

Location: Montpellier, Occitanie, France

Job Type: Temps complet (Full-time)

Category: Design & Product Operations

Date Posted: September 09, 2026

Experience Level: 5-10 years

Remote Status: On-site

🚀 Role Summary

• Design and refine user interfaces for native mobile applications (iOS and Android) within an agile development environment.

• Collaborate closely with UX Designers, Product Owners, and Developers to translate user needs and product strategies into compelling visual designs.

• Maintain and evolve the company's Design System, ensuring consistency, scalability, and adherence to best practices.

• Apply principles of Atomic Design and ensure UI designs meet accessibility standards.

• Contribute to the overall digital innovation strategy of NEXTON by creating user-centric and visually appealing mobile experiences.

📝 Enhancement Note: This role is categorized under Design & Product Operations due to its emphasis on UI design for mobile applications, close collaboration with product teams, and the management of a Design System, which are critical components of a well-oiled product development lifecycle. The "H/F" designation indicates the role is open to all genders.

📈 Primary Responsibilities

• Develop graphical versions of user interfaces, adhering to existing Design System components and guidelines.

• Ensure designs are responsive and align with both web and native mobile UI standards.

• Actively participate in agile ceremonies, providing UI design expertise and feedback throughout the development lifecycle.

• Enrich the Design System by creating new components and refining existing ones to support future design needs.

• Conduct design reviews and provide constructive feedback to UX Designers and other UI Designers.

• Stay abreast of market trends, design innovations, and new technologies to continuously improve the user experience of mobile applications.

• Implement UI designs that are sensitive to accessibility requirements, ensuring inclusivity for all users.

• Challenge design concepts and propose innovative solutions that enhance user engagement and product effectiveness.

📝 Enhancement Note: The responsibilities highlight a hands-on design role with a significant contribution to product strategy and development. The emphasis on agile methodology and Design System management suggests a need for strong collaboration and process-oriented thinking, aligning with operations principles.

🎓 Skills & Qualifications

Education: No specific educational requirements are listed, but a strong portfolio demonstrating relevant skills and experience is implied.

Experience: A minimum of 5 years of experience as a UI Designer, with a significant focus on mobile application design.

Required Skills:

• Proven expertise in UI design for native mobile applications (iOS and Android).

• Proficiency with industry-standard design tools such as Figma, Sketch, Adobe XD, and InVision.

• Strong understanding and application of responsive design principles.

• Experience in building and maintaining Design Systems.

• Knowledge of Atomic Design principles.

• Familiarity with iOS and Android design guidelines.

• Ability to work effectively in an agile development environment.

• Sensitivity to and understanding of web and mobile accessibility standards.

• Excellent communication and collaboration skills for working with cross-functional teams. Preferred Skills:

• Basic knowledge of HTML/CSS.

• Experience in challenging design concepts and proposing innovative solutions.

• A creative and innovative mindset, with a keen eye for market trends and technological advancements.

📝 Enhancement Note: The requirement for 5+ years of experience suggests this is not an entry-level position. The explicit mention of both iOS and Android guidelines, alongside a Design System and Atomic Design, indicates a need for a designer who can think systematically and contribute to scalable design solutions, a key aspect of operations efficiency.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing a minimum of 5 years of UI design work, with a strong emphasis on native mobile applications (iOS and Android).

• Case studies demonstrating the design process from concept to completion, highlighting problem-solving approaches and design decisions.

• Examples of work that illustrate mastery of responsive design and adherence to platform-specific guidelines.

• Visualizations of contributions to Design Systems, including component creation and evolution.

• Demonstrations of how accessibility principles were integrated into designs. Process Documentation:

• Evidence of experience working within agile development frameworks, detailing collaboration with UX, Product Owners, and Developers.

• Examples of how the Atomic Design methodology was applied to create modular and scalable UI components.

• Documentation or case studies that illustrate the process of enriching or contributing to a Design System.

• Any work that showcases the ability to challenge existing designs and propose innovative, user-centric improvements.

📝 Enhancement Note: For a UI Designer role, especially one emphasizing Design Systems and agile collaboration, the portfolio is paramount. It should not just showcase aesthetics but also the designer's ability to think systematically, solve problems, and contribute to efficient product development processes.

💵 Compensation & Benefits

Salary Range: Given the location (Montpellier, France), experience level (5-10 years), and the specialized nature of mobile UI design, a competitive salary range for a UI Designer in France would typically fall between €45,000 to €65,000 annually. This estimate is based on industry benchmarks for experienced designers in tech roles in France, adjusted for regional cost of living.

Benefits:

• Dynamic communities for professional networking and support.

• Regular Meetups focused on skill development and knowledge sharing.

• Access to professional training programs for continuous learning and career advancement.

• Opportunities for sports and festive events to foster team cohesion and well-being.

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

• A latest-generation mobile phone provided for professional use.

Working Hours: The standard working hours are likely 35-40 hours per week, typical for a full-time position in France. The role is on-site, implying a fixed schedule with potential for some flexibility depending on team agreements and agile sprint needs.

📝 Enhancement Note: The salary range is an estimation based on typical market rates for experienced UI Designers in France. Benefits are directly extracted from the provided text and highlight a company culture that values employee development, well-being, and community engagement.

🎯 Team & Company Context

🏢 Company Culture

Industry: NEXTON operates within the Digital Transformation and IT Consulting sector, acting as a hybrid between a consulting firm, an agency, and an IT services company (ESN). They focus on digital, design, agile, product, and development strategies.

Company Size: With over 450 experts, NEXTON is a mid-sized to large company, offering a dynamic environment with established processes and opportunities for growth.

Founded: Founded in 2011, NEXTON has over a decade of experience in guiding clients through digital evolution and innovation.

Team Structure:

• The UI Designer will be part of a specialized digital/design team, likely within a larger product development unit.

• They will work closely with UX Designers, Product Owners, and Developers, indicating a collaborative, cross-functional team structure.

• The agile methodology suggests a flat hierarchy within project teams, emphasizing shared responsibility and iterative progress. Methodology:

• Agile Development: The team operates using agile principles, focusing on iterative development, collaboration, and rapid response to change.

• Design System Management: A core part of the role involves contributing to and utilizing a Design System, promoting consistency and efficiency in design and development.

• User-Centric Design: The emphasis on collaboration with UX Designers and a focus on accessibility underscores a commitment to user needs and inclusive design practices.

Company Website: www.nexton.com

📝 Enhancement Note: NEXTON's positioning as a blend of consulting, agency, and ESN suggests a client-focused yet innovative internal culture. The company size provides a good balance between established structure and the agility needed for digital projects.

📈 Career & Growth Analysis

Operations Career Level: This role is for an experienced UI Designer, likely at a mid-to-senior level, given the 5+ years of experience requirement and the responsibility for enriching a Design System. It signifies a professional who can operate autonomously and contribute strategically to design processes.

Reporting Structure: The UI Designer will report to a Design Lead or a Project Manager, working collaboratively within agile teams. They will have direct interaction with UX Designers, Product Owners, and Developers, forming a tight-knit product development unit.

Operations Impact: The UI Designer's impact is crucial for translating product strategy into tangible, user-friendly interfaces. By ensuring design consistency, adherence to guidelines, and a focus on user experience, they directly influence product adoption, user satisfaction, and ultimately, client success for NEXTON's partners.

Growth Opportunities:

• Skill Advancement: Opportunities to deepen expertise in mobile UI design, explore new design tools, and master advanced Design System strategies.

• Leadership Potential: Potential to grow into a Senior UI Designer, Design Lead, or even a Product Design role, mentoring junior designers and influencing design direction.

• Cross-Functional Exposure: Gaining experience across various client projects and industries, broadening understanding of different product challenges and market dynamics.

• Community Engagement: Participating in NEXTON's internal communities and Meetups offers avenues for knowledge sharing, skill development, and networking with peers.

📝 Enhancement Note: The emphasis on Design Systems and agile collaboration suggests a career path focused on process efficiency and scalable design solutions, aligning well with operations career trajectories within product development.

🌐 Work Environment

Office Type: The role is on-site in Montpellier, France, indicating a traditional office-based work environment.

Office Location(s): Montpellier, a vibrant city in the Occitanie region, likely offers a modern and collaborative workspace designed to foster creativity and teamwork.

Workspace Context:

• Collaborative Environment: The emphasis on working "main dans la main" (hand in hand) with UX Designers, Product Owners, and Developers points to a highly collaborative workspace.

• Tools & Technology: Access to the latest design tools (Figma, Sketch, XD, InVision) and potentially other project management and communication software.

• Team Interaction: Frequent interaction with design and development teams, fostering a dynamic and communicative atmosphere.

Work Schedule: The role is full-time (Temps complet), likely adhering to standard French working hours (around 35-40 hours per week). While on-site, agile methodologies may allow for some flexibility within sprints and project timelines.

📝 Enhancement Note: The on-site requirement in Montpellier suggests a company that values in-person collaboration and team synergy, which can be beneficial for complex design projects and fostering a strong team culture.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your CV and portfolio to assess experience and skill alignment.

• Technical Interview: This will likely involve a discussion about your UI design process, experience with mobile apps, Design Systems, and agile methodologies. You may be asked to walk through specific projects from your portfolio.

• Design Challenge/Case Study: You might be given a design problem or asked to present a detailed case study from your portfolio, focusing on your problem-solving approach, design decisions, and the impact of your work. This is where your understanding of UI principles, accessibility, and Design Systems will be tested.

• Team/Cultural Fit Interview: An opportunity to meet potential colleagues (UX Designers, Developers, Product Owners) and assess how you would integrate into the team and NEXTON's culture. Questions may focus on collaboration, communication, and your approach to challenges.

Portfolio Review Tips:

• Mobile Focus: Ensure your portfolio prominently features your best mobile UI design work, highlighting both iOS and Android projects.

• Process & Rationale: For each project, clearly articulate the problem you were solving, your design process, the tools used, and the rationale behind your key design decisions.

• Design System Contribution: If you have experience contributing to or building a Design System, showcase specific examples of components you created or improved, and explain their impact.

• Agile Collaboration: Describe how you collaborated with UX, Product Owners, and Developers. Use examples of how you managed feedback and iterated on designs within an agile framework.

• Accessibility & Responsiveness: Explicitly mention and demonstrate how you addressed accessibility requirements and ensured responsive design across different devices.

• Conciseness: Present your strongest projects clearly and concisely. Focus on quality over quantity.

Challenge Preparation:

• Revisit Design Principles: Refresh your knowledge of UI design principles, typography, color theory, and layout for mobile platforms.

• Understand NEXTON's Context: Research NEXTON's clients and their typical digital products to anticipate potential design challenges.

• Prepare for Design System Questions: Be ready to discuss your philosophy on Design Systems, their benefits, and how to effectively contribute to and utilize them.

• Practice Articulation: Practice explaining your design decisions and process clearly and confidently, as if presenting to a diverse team.

📝 Enhancement Note: The interview process for a UI Designer role will heavily rely on portfolio assessment. Candidates should be prepared to discuss their design thinking, technical skills, and collaborative approach in detail, linking their work to operational efficiency and user satisfaction.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Essential for collaborative UI design, prototyping, and component management.

• Sketch: Another widely used vector design tool for UI, often used for app design.

• Adobe XD: A comprehensive tool for UI/UX design and prototyping.

• InVision: Primarily used for prototyping, collaboration, and design handoff.

Analytics & Reporting: While not explicitly mentioned for this role, understanding how UI designs impact user behavior tracked by analytics tools (e.g., Google Analytics, Amplitude, Mixpanel) is beneficial.

CRM & Automation: Not directly relevant to this UI Designer role, but familiarity with project management tools used in agile environments (e.g., Jira, Asana, Trello) is expected.

Other Relevant Technologies:

• HTML/CSS: Basic knowledge is a plus, indicating an understanding of how designs translate to code.

• Platform Guidelines: Deep understanding of iOS Human Interface Guidelines and Android Material Design.

📝 Enhancement Note: The primary focus is on design and prototyping tools. Proficiency in these is non-negotiable. The mention of HTML/CSS as a plus suggests a desire for designers who understand the technical implementation of their work, contributing to smoother handoffs and more efficient development cycles.

👥 Team Culture & Values

Operations Values:

• Innovation: NEXTON fosters an environment of innovation, encouraging experts to drive digital evolution and create cutting-edge solutions.

• Collaboration: The company emphasizes working hand-in-hand across disciplines and teams, promoting a collective approach to problem-solving.

• Expertise & Continuous Learning: There's a strong focus on developing and sharing knowledge, supported by communities, meetups, and training programs.

• Agility: Operating in agile methodologies means embracing flexibility, rapid iteration, and responsiveness to project needs.

• User-Centricity: A commitment to creating impactful digital experiences for users, guided by UX principles and accessibility standards.

Collaboration Style:

• Cross-Functional Integration: Expect close collaboration with UX Designers, Product Owners, and Developers, involving regular feedback loops and joint problem-solving sessions.

• Agile Teamwork: The team operates within an agile framework, requiring open communication, shared accountability, and a proactive approach to sprint goals.

• Design System Focus: Collaboration will also involve maintaining and evolving the Design System, requiring alignment among designers and developers to ensure consistency and efficiency.

📝 Enhancement Note: NEXTON's culture appears to be a blend of technical expertise, collaborative spirit, and a drive for innovation, all within an agile framework. This suggests a work environment where designers are empowered to contribute creatively while adhering to structured processes.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Aesthetics and Functionality: Creating visually appealing interfaces that also meet complex functional requirements and user needs.

• Design System Evolution: Ensuring the Design System remains relevant, scalable, and adopted effectively by all teams, especially as product complexity grows.

• Cross-Platform Consistency: Maintaining a cohesive user experience across native iOS and Android platforms while respecting their unique guidelines.

• Agile Iteration: Adapting designs quickly to feedback and evolving project requirements within rapid sprint cycles.

• Accessibility Compliance: Consistently integrating accessibility best practices into designs to ensure inclusivity for all users.

Learning & Development Opportunities:

• Advanced Mobile Design: Deepening expertise in current and emerging mobile UI/UX trends and technologies.

• Design System Leadership: Potential to take ownership of the Design System, leading its strategy and implementation.

• Cross-Disciplinary Learning: Gaining insights into UX research, product management, and development processes through close collaboration.

• Industry Events & Training: Utilizing NEXTON's support for meetups and training to stay ahead of industry advancements.

• Mentorship: Opportunities to be mentored by senior designers or to mentor junior designers as the team grows.

📝 Enhancement Note: The challenges presented are typical for senior UI designers in fast-paced tech environments. The growth opportunities are well-aligned with career progression in design operations and product development, emphasizing continuous learning and leadership.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for designing a new feature for a native mobile application, from initial concept to final handoff." (Focus on your systematic approach, collaboration, and use of design tools/systems.)

• "How do you ensure consistency and scalability when contributing to or building a Design System?" (Highlight your understanding of component-based design, documentation, and governance.)

• "Walk us through a mobile UI design project where you had to balance user needs with technical constraints or business objectives. What was your approach, and what was the outcome?" (Prepare a strong case study from your portfolio.)

• "How do you incorporate accessibility best practices into your mobile UI designs?" (Be ready to discuss specific techniques and guidelines.) Company & Culture Questions:

• "What interests you about NEXTON and our approach to digital innovation?" (Research NEXTON's clients, projects, and company values.)

• "How do you typically collaborate with UX Designers, Product Owners, and Developers in an agile environment?" (Provide concrete examples of your communication and teamwork.)

• "Describe a time you had to challenge a design decision or received difficult feedback. How did you handle it?" (Showcase your professionalism, communication skills, and ability to iterate.) Portfolio Presentation Strategy:

• Storytelling: Frame each project as a narrative – the problem, your solution, your process, and the impact.

• Visual Clarity: Ensure your portfolio is visually appealing, well-organized, and easy to navigate. Use high-quality mockups and prototypes.

• Focus on Process: Emphasize your thinking and decision-making process, not just the final visuals. Explain why you made certain design choices.

• Quantify Impact: Where possible, use data or metrics to demonstrate the success of your designs (e.g., improved conversion rates, user satisfaction scores).

• Design System Examples: Clearly showcase your contributions to Design Systems, detailing components, guidelines, and their benefits.

• Conciseness: Be prepared to present your key projects within a given timeframe, focusing on the most relevant and impactful work.

📝 Enhancement Note: Interview preparation for this role should focus on demonstrating not just design skills but also a strategic, collaborative, and process-oriented mindset that contributes to efficient product development, a hallmark of successful operations professionals.

📌 Application Steps

To apply for this UI Designer position:

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

• Tailor Your Resume: Highlight your 5+ years of UI design experience, specifically focusing on mobile app design, Design Systems, and agile methodologies. Use keywords from the job description.

• Curate Your Portfolio: Ensure your portfolio prominently features your strongest mobile UI design projects. Clearly articulate your design process, rationale, and any contributions to Design Systems or accessibility improvements. Prepare to walk through 1-2 key projects in detail.

• Prepare for Design Challenges: Be ready to discuss your approach to UI design problems, especially those related to mobile applications, responsive design, and collaboration within agile teams.

• Research NEXTON: Understand their company mission, clients, and the types of digital products they develop. This will help you tailor your responses and demonstrate genuine interest.

⚠️ 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.

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