Senior Product Designer - F / H

📍 Job Overview

Job Title: Senior Product Designer - F/H

Company: Epsor

Location: Paris, Ile-de-France, France

Job Type: FULL_TIME

Category: Product Design / UX/UI

Date Posted: 2026-05-05T11:48:41

Experience Level: Mid-Senior Level (5-8 years)

Remote Status: Hybrid (3 days in office, 2 days remote)

🚀 Role Summary

• Lead the end-to-end design craft for the Tuttim mobile application, encompassing discovery, user research, and high-fidelity delivery.

• Drive the enhancement and expansion of Epsor's Design System, ensuring cross-application experience consistency.

• Leverage Artificial Intelligence (AI) to innovate and accelerate design processes, from user research to prototyping and development handoff.

• Actively participate in challenging existing organizational processes and driving experimentation in design methodologies.

• Collaborate closely with Product Managers, Engineers, Data teams, and stakeholders to deliver impactful user experiences within a fintech environment.

📝 Enhancement Note: This role is specifically focused on the product design lifecycle for a mobile application, with a strong emphasis on user experience (UX) and user interface (UI) design within the fintech sector. The incorporation of AI in design processes is a key differentiator for this position.

📈 Primary Responsibilities

• User Experience (UX) and User Interface (UI) Design: Conceive and design future experiences for Tuttim, from initial concept to final delivery, ensuring a fluid and pedagogical user journey.

• Discovery & Research: Clarify scope and user needs by gathering insights from user feedback, interviews, and stakeholder discussions.

• Solution Exploration & Prototyping: Lead the generation of solutions, progressing from low-fidelity (journey maps, sketches) to high-fidelity prototypes, to align the team on functional logic.

• Solution Evaluation & Validation: Assess solutions based on user desirability, business impact, and implementation cost, using evidence from user testing, design critiques, and data analysis.

• Design System Contribution: Contribute to the improvement and enrichment of the Design System, ensuring consistent user experience across Tuttim and the broader Epsor platform.

• AI-Driven Design Innovation: Propose and lead experiments for AI use cases to advance the design organization, specifically targeting acceleration in user research, prototyping, and developer handoff.

• Process Improvement & Experimentation: Challenge current organizational practices and actively participate in experiments related to design processes and team efficiency.

• Cross-Functional Collaboration: Work in close liaison with Product Managers, Engineers, Data teams, and other stakeholders to ensure seamless product development and delivery.

• Quality Assurance: Participate in the specification and acceptance phases of design delivery to ensure final product quality and adherence to design standards.

📝 Enhancement Note: The responsibilities highlight a senior-level expectation for ownership and strategic contribution, particularly in leveraging AI and driving process improvements within the design function. The emphasis on defending design choices with evidence (user testing, data) is critical.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio demonstrating equivalent practical experience and expertise in Product Design is expected.

Experience: 5 to 8 years of experience in Product Design, with a minimum of 3 years focused on native mobile (iOS and/or Android) production environments. Prior experience in fintech, B2C companies, or scale-ups is highly desirable.

Required Skills:

• Product Design Expertise: Proven ability to design for both web and mobile platforms, understanding platform-specific nuances and constraints.

• User-Centric Design: Demonstrated skill in challenging requirements to ensure solutions address genuine user problems, and ability to conduct user interviews to capture needs.

• Evidence-Based Design: Capacity to defend design choices with concrete proof, including user testing, data analysis, and design critiques.

• Solution Arbitrage: Ability to propose, rationalize, and arbitrate between multiple design approaches based on user needs, project, product, and technical constraints.

• Detailed Design & Delivery: Proficiency in creating comprehensive system designs (UX, UI, functional logic) ready for seamless developer handoff.

• Design Tools Proficiency: Expert-level use of standard design tools such as Sketch, Figma, and FigJam.

• AI in Design: Practical experience and enthusiasm for leveraging AI tools to enhance productivity in user research, prototyping, and other design workflows.

• Collaboration & Communication: Proactive coordination with Product Managers, Engineers, and stakeholders; ability to improve collective efficiency through effective rituals, design reviews, and impact measurement.

• Fintech Environment Acumen: Comfort working in a fintech setting where clarity, trust, security, and accessibility are paramount.

Preferred Skills:

• Experience in mentoring junior designers or leading design initiatives.

• Familiarity with accessibility standards and best practices.

• Experience contributing to or managing a Design System.

• Understanding of data analysis techniques to inform design decisions.

📝 Enhancement Note: The experience requirements emphasize practical, production-level mobile design and a strategic approach to problem-solving. The explicit mention of AI tools as a required skill signals a forward-thinking approach to design operations.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Case Studies: Showcase 3-5 detailed case studies demonstrating your end-to-end product design process for mobile applications.

• Problem Definition: Clearly articulate the user problem or business challenge addressed in each case study.

• Process Documentation: Illustrate your design process, including user research methodologies (interviews, surveys, testing), ideation techniques (sketches, wireframes), and prototyping tools used.

• Solution Design: Present high-fidelity mockups and interactive prototypes, highlighting key UX/UI decisions and rationale.

• Impact & Metrics: Quantify the impact of your designs, using metrics such as user engagement, conversion rates, task completion times, or user satisfaction scores.

• Platform Specificity: Include examples of designs for both iOS and Android, demonstrating an understanding of platform-specific guidelines and user expectations.

Process Documentation:

• Workflow Design: Provide examples of how you map out user flows and system interactions.

• System Implementation: Showcase how you translate design specifications into detailed requirements for developers, ensuring smooth handoff.

• Measurement & Analysis: Demonstrate how you track and analyze the performance of your designs post-launch to identify areas for iteration and improvement.

📝 Enhancement Note: A strong portfolio is critical for this role, as it serves as the primary evidence of a candidate's design capabilities, process, and impact. The emphasis on mobile-native design and evidence-based decision-making will be key evaluation criteria.

💵 Compensation & Benefits

Salary Range: €55,000 - €65,000 per year (Gross Annual Salary), depending on profile and experience.

Benefits:

• Profit-Sharing Bonuses: Annual bonuses based on company objectives, ranging from €2,000 to €9,000 (with €5,000 achieved in 2025).

• Retirement Plan: Company-funded mandatory retirement savings plan (PER Obligatoire).

• Meal Vouchers: Swile restaurant card with €9 per working day.

• Commuting Allowance: 50% reimbursement of the Navigo pass or a sustainable mobility bonus.

• B Corp Environment: Work within a company committed to strong social and environmental values.

• Team & Social Events: Participation in seminars, team building activities, and after-work gatherings.

Working Hours: Standard 40-hour work week.

📝 Enhancement Note: The salary range provided is competitive for a Senior Product Designer in Paris. The benefits package is comprehensive, with a notable emphasis on profit sharing and employee well-being, aligned with Epsor's B Corp status.

🎯 Team & Company Context

🏢 Company Culture

Industry: Fintech, Employee Savings & Retirement, Employee Benefits. Epsor is a mission-driven company (B Corp certified) focused on transforming savings and retirement planning into a simpler, more transparent, and responsible experience.

Company Size: With 2,500 clients and 250,000 users, Epsor is a significant player in the French employee savings and retirement market, positioning itself as a scale-up.

Founded: Established in 2017, Epsor has rapidly grown to become a top 10 actor in its market, demonstrating a strong trajectory and innovative approach.

Team Structure:

• The Product & Tech team comprises over 30 individuals.

• The Senior Product Designer will report to Louis, the Head of Design.

Methodology:

• Data-Driven Decisions: Emphasis on using facts, user research, and data to inform design choices and validate solutions.

• Agile Development: Implied collaborative and iterative approach working closely with engineering and product management.

• User-Centricity: A core philosophy driving the design and development of products like Tuttim.

• Process Experimentation: Encouragement to challenge and evolve existing design and development workflows.

Company Website: https://epsor.fr/ and https://tuttim.com/

📝 Enhancement Note: Epsor's culture is characterized by its mission-driven approach, B Corp certification, and rapid growth in the fintech sector. The team values collaboration, evidence-based decision-making, and continuous improvement, particularly in adopting new technologies like AI.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior Product Designer role, indicating a need for significant autonomy, strategic input, and the ability to lead design initiatives. The role involves ownership of a key product (Tuttim) and contribution to the overall design system and processes.

Reporting Structure: The designer will report directly to the Head of Design, Louis, and will work collaboratively within a cross-functional Product & Tech team.

Operations Impact: The role has a direct impact on user acquisition, engagement, and retention for Tuttim, a critical new product. Success in this role will contribute significantly to Epsor's mission of guiding savers and enhancing employee benefits.

Growth Opportunities:

• Leadership in Design: Opportunity to influence the design direction of a growing fintech company and shape the user experience of a flagship product.

• AI Specialization: Develop expertise in applying AI to design workflows, a rapidly growing and in-demand skill set.

• Design System Ownership: Contribute to and potentially lead the evolution of a comprehensive Design System.

• Mentorship: Potential to mentor junior designers as the team expands.

• Cross-Functional Exposure: Gain deep understanding of product management, engineering, and data analysis within a fast-paced scale-up environment.

📝 Enhancement Note: This senior role offers substantial opportunities for professional growth, particularly in areas like AI-driven design and strategic product development within the fintech space. The direct reporting to the Head of Design suggests a high level of visibility and influence.

🌐 Work Environment

Office Type: The role is based in Paris, with a hybrid work model. Employees are expected to be in the office 3 days per week, likely for collaboration, team meetings, and design workshops.

Office Location(s): 66 Rue de Rome, 75008 Paris, France. This is a central location in Paris, accessible via public transportation.

Workspace Context:

• Collaborative Environment: The hybrid model encourages in-person collaboration for brainstorming, design reviews, and team building.

• Tools & Technology: Access to standard design tools like Figma and FigJam, with an emphasis on adopting AI-powered design tools.

• Team Interaction: Opportunities for regular interaction with Product Managers, Engineers, Data Analysts, and other designers within the Product & Tech team.

Work Schedule: The standard work schedule is 40 hours per week, with the flexibility of 2 remote days, allowing for focused individual work and better work-life balance.

📝 Enhancement Note: The hybrid model balances the need for in-person collaboration with the benefits of remote work, offering a modern and flexible work environment conducive to deep design work and team synergy.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: An introductory call with Louis, the Head of Design, to discuss your background and fit for the role.

• HR Interview: A conversation with the HR representative to cover general aspects of the role, company culture, and benefits.

• Team & Practical Assessment: A live session with the team, including a practical design exercise or case study presentation to evaluate your design skills, problem-solving abilities, and collaboration style.

• Final Interview: A meeting with Arnaud, the Chief Product Officer (CPO), to discuss strategic alignment and overall fit for the product organization.

Portfolio Review Tips:

• Highlight Mobile-Native: Ensure your portfolio prominently features case studies of native iOS and/or Android applications you've designed.

• Showcase Process: Detail your end-to-end design process, from discovery and user research to iterations and final delivery. Use visuals like journey maps, wireframes, and high-fidelity mockups.

• Quantify Impact: Wherever possible, use data and metrics to demonstrate the success and impact of your design solutions.

• Explain Rationale: Clearly articulate the "why" behind your design decisions, linking them back to user needs, business goals, and technical constraints.

• AI Integration: If you have experience using AI in your design workflow, be prepared to discuss specific examples and their benefits.

• Conciseness: While detailed, ensure your portfolio is easy to navigate and highlights your most relevant and impactful work.

Challenge Preparation:

• Understand Tuttim: Familiarize yourself with Epsor's mission and the Tuttim product. Consider its target audience and value proposition.

• Design Thinking: Be ready to apply design thinking principles to a given problem, demonstrating your ability to empathize, define, ideate, prototype, and test.

• Live Prototyping: Practice creating quick prototypes in Figma or similar tools to convey your ideas effectively.

• Stakeholder Communication: Prepare to articulate your design decisions and justify trade-offs clearly and concisely to a diverse group (product, engineering, leadership).

📝 Enhancement Note: The interview process is structured to assess technical skills, cultural fit, and strategic thinking. A well-prepared portfolio that clearly demonstrates mobile-native design expertise and impact is paramount.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The core design tool for wireframing, UI design, prototyping, and collaboration.

• Sketch: Potentially used for legacy projects or specific design tasks.

• FigJam: For collaborative brainstorming, ideation, and workflow mapping.

• AI Design Tools: Candidates are expected to utilize and experiment with AI tools for user research analysis, content generation, prototyping assistance, and potentially code generation/handoff.

Analytics & Reporting:

CRM & Automation:

• Not directly relevant to the design role's primary tools, but awareness of how designs integrate into the broader product ecosystem is beneficial.

📝 Enhancement Note: Proficiency in Figma is essential. The company's forward-looking approach emphasizes the integration of AI tools into the design workflow, making candidates with experience or a strong interest in this area particularly attractive.

👥 Team Culture & Values

Operations Values:

• Collective & Trust: Core values emphasizing teamwork, mutual support, and open communication.

• Mission-Driven: A strong commitment to the company's purpose of guiding savers for a better tomorrow.

• Impact-Oriented: Focus on delivering tangible value to users and the business.

• Transparency & Responsibility: Embedded in the B Corp certification and the company's approach to savings and retirement.

• Efficiency & Innovation: Encouragement to challenge processes and explore new methods, including AI.

Collaboration Style:

• Cross-Functional Integration: Designers work hand-in-hand with Product Managers, Engineers, and Data teams throughout the product lifecycle.

• Evidence-Based Feedback: Design reviews and critiques are based on user data, testing results, and objective analysis.

• Open Communication: A culture that encourages sharing ideas, providing constructive feedback, and discussing challenges openly.

• Experimentation: Willingness to try new approaches and learn from both successes and failures.

📝 Enhancement Note: Epsor fosters a culture that balances a strong sense of purpose with a pragmatic, data-driven approach to product development. The emphasis on collective effort and trust is central to how teams operate.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Stakeholder Needs: Navigating diverse requirements from Product, Engineering, Business, and User perspectives to find optimal design solutions.

• Rapidly Evolving Fintech Landscape: Staying abreast of industry trends, regulatory changes, and technological advancements.

• AI Integration Complexity: Effectively implementing and scaling AI tools within the design workflow while ensuring quality and ethical considerations.

• Cross-Platform Consistency: Maintaining a cohesive user experience across mobile native apps and potentially a web platform, managed by a shared Design System.

Learning & Development Opportunities:

• AI in Design Specialization: Deepen expertise in leveraging AI for user research, prototyping, and workflow optimization.

• Fintech Product Design: Gain specialized knowledge in designing for financial products, focusing on security, trust, and user education.

• Design System Development: Contribute to and influence the growth of a robust Design System.

• Leadership Skills: Develop strategic thinking and leadership capabilities through ownership of key product features and potentially mentoring.

📝 Enhancement Note: The role presents opportunities to tackle complex challenges at the intersection of fintech, mobile design, and emerging AI technologies, offering significant avenues for professional development and specialization.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to significantly challenge a stakeholder's requirement based on user research. What was the outcome?" (Focus on user advocacy, data utilization, and negotiation skills).

• "How would you approach designing a new feature for Tuttim that requires users to input sensitive financial information? What are the key considerations for trust and security?" (Demonstrate understanding of fintech UX principles, accessibility, and security best practices).

Company & Culture Questions:

• "What interests you about Epsor's mission and our B Corp certification?" (Connect your values to the company's purpose).

• "How do you approach collaboration within a cross-functional team (Product Managers, Engineers, Data)?" (Highlight your communication and teamwork skills).

Portfolio Presentation Strategy:

• Storytelling: Structure your case studies as compelling narratives, highlighting the problem, your role, the process, the solution, and the impact.

• Visuals: Use high-quality mockups, prototypes, and process diagrams to illustrate your points effectively.

• Conciseness & Clarity: Be prepared to present your key projects within a given timeframe, focusing on the most relevant aspects for this role.

• AI Examples: If applicable, clearly show how AI tools were used in your projects and the benefits they brought.

📝 Enhancement Note: Prepare to articulate your design philosophy, demonstrate your ability to use data and user feedback to drive decisions, and showcase your collaborative spirit. Emphasize your experience with mobile-native design and any relevant fintech or AI experience.

📌 Application Steps

To apply for this Senior Product Designer position:

• Submit your application through the provided link on the Epsor Teamtailor careers page.

• Portfolio Customization: Tailor your portfolio to highlight your strongest mobile-native design case studies, particularly those demonstrating complex problem-solving or innovative solutions. Emphasize your experience with Figma and any AI-driven design processes.

• Resume Optimization: Ensure your resume clearly outlines your 5-8 years of experience, with specific mention of your 3+ years in native mobile production. Use keywords from the job description (e.g., Product Design, UX/UI, Mobile Native, Figma, User Research, AI, Fintech).

• Interview Preparation: Practice articulating your design process, defending your design decisions with data and user insights, and discussing your experience with AI tools. Prepare specific examples for behavioral questions.

• Company Research: Thoroughly research Epsor's mission, values, and the Tuttim product. Understand their position in the fintech market and their commitment to being a B Corp.

⚠️ 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.