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Inventory changes fast

Constraints & challenges

Hard to find listings

Too much noise

Outcomes

$

Rules:

Faster discovery of relevant listings

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Unified workflows across teams

CIRCULAIRE

Scaling discovery and engagement in a second-hand marketplace.

Product Design
Visual Design
User Experience
Prototyping

During my time working on Circulaire at Ministry of Programming, I played a key role in shaping the app’s design and functionality.


I contributed to the design and development of the watchlist and notification system, ensuring a seamless user experience for tracking second-hand items.

Additionally, I worked on enhancing eco-friendly motivation features, making sustainability metrics more accessible and engaging.

My work also included refining UX flows and improving personalized recommendations, helping transform Circulaire from a simple search tool into a fully interactive second-hand shopping platform.

CHALLENGES & PAIN POINTS

The Frustration of Second-Hand Shopping

The Frustration of Second-Hand Shopping

Meet Emma, a Vintage Fashion Enthusiast

Emma, a 32-year-old fashion lover from Berlin, enjoys curating a wardrobe full of unique second-hand pieces.

She’s always on the hunt for rare finds, but the process is frustrating.

One evening, she spots a gorgeous vintage leather jacket on a second-hand store’s website. Excited, she tries to track down similar options but quickly hits roadblocks:

Meet Emma, a Vintage Fashion Enthusiast

Emma, a 32-year-old fashion lover from Berlin, enjoys curating a wardrobe full of unique second-hand pieces.

She’s always on the hunt for rare finds, but the process is frustrating.

One evening, she spots a gorgeous vintage leather jacket on a second-hand store’s website. Excited, she tries to track down similar options but quickly hits roadblocks:

Scattered Inventory

She jumps between multiple stores, each with different interfaces, search filters, and availability. There’s no unified platform showing what’s in stock across all retailers.

Search Struggles

Filters are inconsistent, making it hard to find exactly what she wants. Some stores list items by category, others by brand, and sizes aren’t standardized.

No Sustainability Insights

Emma wants to make environmentally conscious choices but has no visibility into how much CO2 or water she saves by buying second-hand instead of new.

Lost Opportunities

By the time she finally finds the perfect jacket again, it’s already sold out. No notifications, no second chances. Frustrated, Emma gives up and considers buying new instead.

SOLVING THE PROBLEM

A Seamless Second-Hand Experience

A Seamless Second-Hand Experience

Circulaire was designed to address these frustrations by creating a centralized, intelligent, and user-friendly second-hand shopping experience.

The platform brings together multiple retailers, optimizes search, and introduces features that keep shoppers engaged and informed.

Circulaire was designed to address these frustrations by creating a centralized, intelligent, and user-friendly second-hand shopping experience.

The platform brings together multiple retailers, optimizes search, and introduces features that keep shoppers engaged and informed.

Smart Personalization

Custom recommendations, watchlists, and notifications ensure Emma never misses out on an item she loves.

Sustainability Metrics

Clear impact insights show how much CO2 and water are saved per purchase, empowering eco-conscious decisions.

Real-Time Alerts

Instant notifications for price drops and restocked favorites keep users engaged and encourage purchases.

One-Stop Inventory

A unified marketplace aggregates second-hand stores, eliminating the need for multiple searches.

Optimized Search & Filters

Standardized categories, size conversions, and improved search functionality make finding the right item effortless.

Mobile-First Design

Optimized for easy browsing, filtering, and purchasing on the go.

Smart Personalization

Custom recommendations, watchlists, and notifications ensure Emma never misses out on an item she loves.

One-Stop Inventory

A unified marketplace aggregates second-hand stores, eliminating the need for multiple searches.

Sustainability Metrics

Clear impact insights show how much CO2 and water are saved per purchase, empowering eco-conscious decisions.

Optimized Search & Filters

Standardized categories, size conversions, and improved search functionality make finding the right item effortless.

Real-Time Alerts

Instant notifications for price drops and restocked favorites keep users engaged and encourage purchases.

Mobile-First Design

Optimized for easy browsing, filtering, and purchasing on the go.

RESULTS & IMPACT

A Smarter, More Sustainable Shopping Experience

A Smarter, More Sustainable Shopping Experience

By evolving from a simple search engine to a fully-featured second-hand marketplace, Circulaire has transformed the way users shop, making it smarter, more engaging, and environmentally conscious.

By evolving from a simple search engine to a fully-featured second-hand marketplace, Circulaire has transformed the way users shop, making it smarter, more engaging, and environmentally conscious.

Increased User Engagement

Personalized recommendations, watchlists, and notifications keep users engaged and actively returning to the platform.

Seamless Shopping

Users can easily browse multiple stores, saving time and effort while making eco-friendly purchases.

Encouraging Sustainable Choices

Environmental impact metrics show the benefits of buying second-hand, encouraging eco-conscious consumer behavior.

Scalability & Growth

The platform now supports millions of products and is prepared for future expansion, ready to accommodate the second-hand market across multiple countries.

Increased User Engagement

Personalized recommendations, watchlists, and notifications keep users engaged and actively returning to the platform.

Encouraging Sustainable Choices

Environmental impact metrics show the benefits of buying second-hand, encouraging eco-conscious consumer behavior.

Seamless Shopping

Users can easily browse multiple stores, saving time and effort while making eco-friendly purchases.

Scalability & Growth

The platform now supports millions of products and is prepared for future expansion, ready to accommodate the second-hand market across multiple countries.

Designed with care, curiosity, and a lot of iteration.

Talking is the best way to explore how I can help you with your ideas.

If you have something in mind — a product, a problem, or even an early thought — I’m always open to a conversation. As long as we find something interesting to explore and build together, let’s talk.

Book a call

Resume

LinkedIn

Dribbble

Designed with care, curiosity, and a lot of iteration.

Talking is the best way to explore how I can help you with your ideas.

If you have something in mind — a product, a problem, or even an early thought — I’m always open to a conversation. As long as we find something interesting to explore and build together, let’s talk.

Book a call

Resume

LinkedIn

Dribbble

Designed with care, curiosity, and a lot of iteration.

Talking is the best way to explore how I can help you with your ideas.

If you have something in mind — a product, a problem, or even an early thought — I’m always open to a conversation. As long as we find something interesting to explore and build together, let’s talk.

Book a call

Resume

LinkedIn

Dribbble