Sarah Villelongue
Service Designer & CX Strategist
15+ years of digital expertise, designing complex ecosystems — for international enterprise clients who want experiences that matter.
Some of my favourite clients
Service design creating impactful experiences
18 years of experience in the digital field, at the intersection of neuroscience and artificial intelligence. My role is to reveal invisible friction points, map complex ecosystems, and show how every internal process directly influences the user or customer experience.
Learn moreImpactful journeys, proven results
A selection of projects where strategy, design, and innovation created measurable change.
EXIntelcia
Employee experience design
UX ResearchService DesignWorkshop
EXActiv'Action
Improving the journey of unemployed people, creating commitment
User ResearchWorkshop
CXPracticeo
Centralizing and facilitating the patient's health journey
UX ResearchWorkshop
CXCourse U
U. Stores online supermarket: ecommerce website (desktop/mobile)
UX DesignerCX
ProductAllyz by Allianz
Travel, insurance website
Product DesignDesign. Strategy. Impact.
Service Design
Designing coherent end-to-end services, from back-office to the experience customers actually see.
CX Strategy
Aligning business strategy with the real needs of customers and users.
AI
Bringing AI and automation in wherever it genuinely serves people.
Innovation & Change Management
Supporting teams through transformation, all the way to lasting adoption.
How do I work?
User needs first
Every decision starts from research, not intuition.
Systems thinking
Understanding the whole ecosystem before designing a solution.
Collaboration
Co-creating with business teams, experts and end users.
Impact focused
Actionable deliverables, measured against real outcomes.
"Sarah has been collaborating with our Consumer Experience Team at Sanofi for more than 6 months, bringing innovation not only on the design proposals […]"
CX Manager, Sanofi
"Sarah is a professional advocate for the customer and user. Her research methodologies set the team up to transform a legacy enterprise application into […]"
Global Head UX Hospitality, Amadeus
Let's talk about your next challenge
A potential collaboration, a project in mind, or simply an exchange about design, strategy and innovation.
Reach me out