TIMELINE
TEAM
Le Boncoin is one of France’s leading online marketplaces, serving millions of users across diverse categories. Over time, incremental feature additions led to inconsistencies in layout, navigation, and visual hierarchy. The project focused on restoring clarity and cohesion across the interface, while exploring potential engagement opportunities — including an Auction Sales concept.
Le Boncoin is one of France's most visited marketplaces, operating at high scale across diverse categories. Years of incremental updates resulted in a fragmented visual language and inconsistent interaction patterns — visible across navigation structure, card layouts, interaction states, and responsive behavior.
The challenge was to improve clarity and system coherence while identifying opportunities for deeper engagement.
The goal was not a full redesign, but restoring clarity across the system.
Focus areas included:
Simplifying navigation and reducing friction
Strengthening hierarchy across listings and pages
Aligning interaction patterns for consistency
Exploring new engagement models within the marketplace
I contribute to the UX direction across the project — from system audit to implementation.
My role focused on:
Identifying structural inconsistencies across the platform
Defining interaction models and refining design system
Designing key user flows and interfaces
Aligning design decisions with product and engineering teams
The platform revealed multiple inconsistencies across core interaction layers:
Navigation structure and hierarchy
Card layouts and content density
Interaction states and feedback
Responsive behavior across devices
Rather than isolated issues, these patterns pointed to a lack of system-level consistency.
User research highlighted evolving expectations, particularly among younger audiences.
Users showed increasing familiarity with auction-based interactions on platforms like eBay, suggesting an opportunity to introduce more dynamic engagement models.
This insight opened the exploration of integrating auction mechanics into the existing marketplace experience.
The Auction feature was explored as a way to increase engagement while maintaining familiarity with existing usage patterns.
The concept focused on:
Dedicated auction listing pages
Real-time bidding states and feedback
Countdown and urgency-driven interactions
Clear seller and buyer flows
The challenge was to integrate these behaviors seamlessly into the existing system without increasing complexity.
Design improvements focused on creating a more coherent and scalable system.
Key outcomes included:
More consistent visual hierarchy across the platform
Aligned interaction patterns and feedback states
A scalable foundation for future features
Introduction of auction-based interactions as a new engagement model
These changes strengthened system coherence and improved usability at scale.
