Freelancer profile translated to English.
Back to original languageAbout Sébastien
👨🎨About me
UX/UI designer specializing in data-driven SaaS applications in Fintech. I help SMEs, startups, and large fintech companies design rich, intuitive, and high-performing data interfaces. With nearly10 years of experience**, I am passionate about translating **business objectivesinto clear and engaging user experiences.
🔧My key skills
👉 UX Research (interviews, surveys, analyses)
👉 Needs analysis & identification of underlying UX issues
👉 Design of user flows, wireframes & UI (high-fidelity mockups)
👉 Rapid and iterative prototyping in Figma
👉 User testing
⚙️My Approach
Each SaaS application design project begins withUX workshops(scoping, empathy mapping, co-creation) to alignbusiness needswithuser problems**. I iterate through prototypes tested in real conditions, analyze feedback, and **refine solutions**. **Comprehensive documentationand anagile workflowensure a **smooth and surprise-free production launch**.
📄Some references
👉Meta
Role: UX Researcher & UX Designer
Project: User research and UX redesign of an internal SaaS application |+76% users in 1 year
👉Kaiko
Role: UX/UI designer
Description: Web application for the presentation and analysis of a suite of crypto indices
👉BNP Paribas
Role: UX/UI designer
Project: Design of SaaS applications used by the ALMT department to increase user efficiency and avoid manual, repetitive tasks
👉DBX
Role: UX/UI designer
Project: Desktop application to enable traders to better manage their portfolios
📢Languages
French: Native language
English: Full proficiency
Spanish: Full proficiency
💬 Available for your fintech SaaS project: let's talk!
French
Native or bilingual
English
Native or bilingual
Spanish
Native or bilingual
Can work on-site
Paris (up to 50km), Lyon (up to 10km), Toulouse (up to 10km), Nice (up to 10km), Marseille (up to 10km)
Experience
- SCH DesignUX/UI DesignerTECHDecember 2021 - Today (4 years and 8 months)Paris, FranceAs a freelance UX/UI Designer, I support SMEs, startups, and large fintech groups (and more broadly any data-rich SaaS project) from the scoping phase to production.What I bring to my fintech clients:UX Workshops & Scoping👉 Empathy mapping, interviews & surveys to understand real needs👉 Benchmarking & competitive analysis to position the applicationExperience & Interface Design👉 Data-centric flows, wireframes, and mockups (dashboards, visualizations)👉 Polished, responsive, and accessible UI Design (WCAG)Prototyping & Validation👉 Interactive prototypes in Figma tested in real conditions👉 User Testing and A/B Testing to refine UX choicesDeliverables & Methodology👉 Comprehensive documentation (specifications, design system)👉 Agile workflow and rapid iterations to reduce time-to-marketFintech Industry Knowledge👉 Ability to converse and understand fintech professionals (traders, pricers, portfolio managers, etc.)👉 Advanced functional understanding of fintech challengesExample Results👉 Meta Policy Dashboard (data-driven SaaS): +76% time spent on key featuresStreamlined journey and very positive user feedback on Fintech applications👉 Available to structure and optimize your data-driven SaaS application!
- BNP Paribas CIBUX Designer (Consultant)October 2018 - December 2021 (3 years and 2 months)Paris, France- Within the context of digital transformation, redefining the user journey across all data-driven SaaS applications used by the treasury department to increase user efficiency and avoid manual, repetitive, low-value-added tasks.- Conducting user interviews to understand their data needs and daily usage.- Building personas and user journeys based on real data flows.- Preparing and facilitating design workshops focused on data visualization and circulation.- Designing a new SaaS application that will be the single entry point for all other applications used by the Treasury department. It consists of a dashboard where the user can add what we call "widgets" (representing a single feature or specific data from a given application) to build their own view and display the information and actions they want.- Defining a design system to ensure visual consistency across all applications and facilitate developers' work.- Providing specifications to developers and overseeing the development phase.- Conducting user testing and using analytics data to continuously improve designs.- Coaching and training IT teams on Agile and Design Thinking methodologies.
- EPEX SPOTUX Designer (Consultant)July 2016 - August 2018 (2 years and 1 month)Paris, France- Redesign of the trading platform to include major new features.- Conducting user interviews and tests to thoroughly understand the trading platform's usability issues.- Working closely with the development team.
Reviews
Recommendations
MP
+1
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Education
- MicroMaster User Experience Research and Design, UX DesignUniversity of Michigan2018MicroMaster User Experience Research and Design, UX Design
- Master of EngineeringEcole centrale d'Electronique2007Master of Engineering (M.Eng.), Embedded Systems