Barcelona, Catalonia, Spain
I’m a Senior UI/UX Product Designer with 10+ years of experience leading UX strategy, product strategy, and scalable design systems across AI-powered tools, SaaS platforms, and mobile applications.I specialize in turning complex workflows into intuitive, high-performing products that drive adoption, accelerate delivery, and scale across organizations. My work spans zero-to-one MVPs, enterprise platforms, AI internal tools, and high-traffic consumer products.Over the past decade, I’ve partnered closely with Product, Engineering, Data, and Executive stakeholders to: • Lead end-to-end UX strategy and product design• Build Figma-based design systems and component libraries • Drive user research, usability testing, and data-informed design • Ship AI-powered tools used at scale• Improve conversion, adoption, and operational efficiency Recent highlights include: • Designing 5 AI-powered tools at Sanofi, reducing document creation time by 80% • Increasing review completion by 65% at GetYourGuide • Scaling community reach from 900 to 35,000+ users at Climate HourI’m strongest in environments where product strategy, technical complexity, and human-centered design intersect. 📍 Barcelona | Open to EU & US remote 💬 Languages: French (Native), English (C2), Spanish (B2) 🔗 Portfolio: http://jonathan.design Always happy to connect with product leaders, founders, and design teams building meaningful products.
• Led end-to-end UX strategy and product design for five AI-powered internal tools, establishing scalable design systems and reusable UX patterns adopted across multiple product teams. • Reduced document creation time by up to 80% through workflow redesign and automation. • Planned and executed biweekly user research and usability testing with medical writers, achieving 100% pilot adoption within the first month. • Designed and shipped 11 production-ready features using Figma, interactive prototyping, and accessibility-aware design. • Built a self-service component library to accelerate future AI product delivery across teams.
• Co-led UX strategy and end-to-end redesign of the reviews experience using information architecture, interaction design, and prototyping. • Increased review completion rates by 65% through a photo-first, story-driven experience. • Partnered with Product Managers, Engineers, and key stakeholders in an Agile/Scrum environment to accelerate roadmap execution.
• Owned the full product design lifecycle including UX research, product strategy, wireframing, high-fidelity UI design, prototyping, and developer handoff. • Built and scaled a Figma-based design system and component library, reducing design-to-development handoff time by 25–30%. • Led cross-functional collaboration with CX, Product Management, and Customer Care to ship high-impact, user-driven product improvements.
• Partnered with grassroots organizations and social justice stakeholders to design and launch zero-to-one MVPs using lean UX and user-centered design. • Designed and executed a content and social media strategy, growing platform reach from 900 to over 35,000 users per publication. • Worked directly with founders on product strategy, business strategy, and fundraising storytelling supporting investor pitches.