Portfolio

Our work

From data to design, from web to textile: a selection of projects that illustrate our philosophy, “One is all, all is one”.

13 projects shown

Textile
Balek Skateboard · 2024
Skate Streetwear Collection
Printing and screen printing of a streetwear range for a 100% French skate brand.
- Screen Printing
- Textile Printing
Textile
Kayou · 2024
Fêtes de Bayonne Team Gear
Velvet flock and digital printing for the visual identity of a sports group at summer events.
- Velvet Flock
- Digital Printing (DTG)
Textile
CFDT Enedis · 2023
Event Cups (Ecocups)
Full-colour customisation of translucent reusable cups for trade union events.
- Four-Colour Printing
- Promotional Items
Textile
P4PBLUR · 2024
Art & Street-Culture Merchandising
Bringing the 'creepycute' art world to textiles and creating custom stickers.
- Digital Printing
- Sticker Design
Textile
La Yeyette au Rhum · 2023
Custom Zip Hoodies
Digital printing on zip hoodies to grow the rum brand's merchandising.
- Digital Printing
- Premium Textile
Textile
Adelante · 2024
Polo Team Kit & Sportswear
High-end embroidery and printing on a full range of apparel and accessories for the Adelante polo team.
- Embroidery
- Textile Printing
Web
La Yeyette au Rhum · 2024
E-commerce Redesign & Visual Identity - La Yeyette au Rhum
New logo, labels and a custom WooCommerce store (consumers, events, trade) for a craft rum brand from Pau.
- WordPress
- WooCommerce
Web
Pavillons de l'Atlantique · 2024
Showcase Website Redesign - Pavillons de l'Atlantique
Responsive showcase website focused on trust and local SEO for a custom home builder in Gironde.
- Web Design
- Showcase Website
- SEO Optimisation
Data & AI
EFREI academic project · 2026
Intelligent Multi-Model System — Customer Retention & Revenue Risk
Proactive decision-support system that anticipates customer disengagement and estimates "Revenue at Risk", maximising Customer Success ROI.
- Machine Learning
- FastAPI
- Streamlit
- Docker
- MLOps
Data & AI
EFREI academic project · 2026
AISCA - Semantic & Generative AI Agent
Tech & Data career agent: local semantic analysis (SBERT) and generative AI (Google Gemini) in a RAG architecture to match profiles with real opportunities.
- NLP
- GenAI
- RAG
- Streamlit
- SBERT
Data & AI
EFREI academic project · 2026
Urban Data Explorer - Housing Dashboard
Housing exploration platform for Paris: Open Data pipeline (Bronze/Silver/Gold), filtering API and interactive map dashboard.
- Data Engineering
- API
- Dataviz
Data & AI
EFREI academic project · 2026
My Social Network API - Backend Architecture
Secure REST API (Node.js, Express, MongoDB) for a social network: groups, events, transactional ticketing, carpooling and polls.
- Node.js
- Express
- MongoDB
- JWT
- Postman
Data & AI
M1 Data Engineering & AI academic project - EFREI Paris · 2026
Hubble Lakehouse — Big Data Architecture & Space Weather
Medallion Big Data pipeline, batch and streaming: Hubble telescope observations joined with NOAA space weather, served as 4 business datamarts.
- Apache Spark
- Airflow
- HDFS
- Kubernetes
- Power BI

Data & AI

Secure REST API (Node.js, Express, MongoDB) for a social network: groups, events, transactional ticketing, carpooling and polls.

Client: EFREI academic project
Year: 2026
Expertise: Data & AI
Services: REST API, Backend Development, API Security, Data Modelling
Tools: Node.js
Express
MongoDB
JWT
Postman

Context

This project is part of a professional simulation in which Facebook commissioned a REST API for a brand-new social networking service. The goal was to design a robust backend architecture, with full freedom over the endpoint design, while meeting a precise functional specification.

Our approach

To meet these requirements, a complete and secure RESTful API was built with Node.js, Express and MongoDB.

Architecture & Modelling
Advanced database schemas to manage users, groups (public, private, secret) and events.
Social Features
Discussion threads attached to groups or events, commentable photo albums and interactive polls.
Ticketing & Transactions
Ticketing with strict stock control (one ticket per outside attendee) handled through atomic MongoDB transactions (mongoose.startSession()).
Collaborative Modules (Bonus)
An event Shopping List and an interactive Carpooling module.
Maximum Security
JWT authentication, bcrypt password hashing, rate limiting against brute force, hardened headers (Helmet) and HTTPS-only encrypted traffic.

Deliverables

A fully working REST API documented in Postman, with source code validated by security tests and an architectural visualisation through an interactive Terminal component and a data flow diagram.

API in action

No user interface: the API reads through its requests. Here is the real ticket purchase call from the Postman collection, and the document returned by the server.

zsh — https://localhost:3000

Request

POST /events/68ff53f7feb4ed139d5dbb45/purchase HTTP/1.1
Host: localhost:3000
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9…
Content-Type: application/json

{
  "ticketTypeId": "690650cac85bc6f4f34b2676",
  "buyerFirstName": "Peter",
  "buyerLastName": "Pan",
  "buyerAddress": "123 Neverland St, London",
  "buyerEmail": "peter.pan@test.com"
}

ResponseHTTP/1.1 201 Created

{
  "_id": "6906528fc85bc6f4f34b2690",
  "event": "68ff53f7feb4ed139d5dbb45",
  "ticketType": "690650cac85bc6f4f34b2676",
  "buyerFirstName": "Peter",
  "buyerLastName": "Pan",
  "buyerAddress": "123 Neverland St, London",
  "buyerEmail": "peter.pan@test.com",
  "purchaseDate": "2025-11-01T18:42:07.311Z",
  "createdAt": "2025-11-01T18:42:07.311Z",
  "updatedAt": "2025-11-01T18:42:07.311Z"
}

View the GitHub repository

Inside a MongoDB session

1The event exists and is public, otherwise ticketing is refused.
2The ticket type actually belongs to this event.
3Stock check: soldCount < quantity.
4Ticket creation; the unique index (event + email) blocks a second purchase (409).
5Atomic soldCount increment ($inc), then full commit or rollback.

API surface

Every resource of the Postman collection, with its HTTP verb breakdown.

Users & Authentification
8 requests
- GET × 3
- POST × 2
- PUT × 2
- DELETE × 1
Groups
10 requests
- GET × 4
- POST × 4
- PUT × 1
- DELETE × 1
Events
7 requests
- GET × 2
- POST × 3
- PUT × 1
- DELETE × 1
Discussion Threads
6 requests
- GET × 2
- POST × 2
- PUT × 1
- DELETE × 1
Photo Albums
7 requests
- GET × 3
- POST × 3
- DELETE × 1
Polls
5 requests
- GET × 2
- POST × 2
- DELETE × 1
Ticketing
6 requests
- GET × 2
- POST × 2
- PUT × 1
- DELETE × 1
Shopping List
4 requests
- GET × 1
- POST × 1
- PUT × 1
- DELETE × 1
Carpooling
4 requests
- GET × 1
- POST × 1
- PUT × 1
- DELETE × 1

Architecture

Thirteen Mongoose schemas linked by references. The event is the hub: ticketing, carpooling, shopping list, albums, polls and discussion thread all hang off it.

Loading diagram…

View the Mermaid code

erDiagram
  User {
    ObjectId _id PK
    string firstname
    string lastname
    string email UK
    string password "bcrypt"
    string avatar
  }
  Group {
    ObjectId _id PK
    string name
    string groupType "public | private | secret"
    ObjectId[] admins FK
    ObjectId[] members FK
    object settings
  }
  Event {
    ObjectId _id PK
    string name
    date startDate
    date endDate
    string location
    boolean isPrivate
    ObjectId group FK
    boolean shoppingListEnabled
    boolean carpoolingEnabled
  }
  TicketType {
    ObjectId _id PK
    ObjectId event FK
    string name
    number price
    number quantity
    number soldCount
  }
  PurchasedTicket {
    ObjectId _id PK
    ObjectId event FK
    ObjectId ticketType FK
    string buyerEmail "unique par event"
    date purchaseDate
  }
  CarpoolOffer {
    ObjectId _id PK
    ObjectId event FK
    ObjectId driver FK
    string departureLocation
    date departureTime
    number price
    number availableSeats
    number maxDetourMinutes
  }
  ShoppingListItem {
    ObjectId _id PK
    ObjectId event FK
    ObjectId user FK
    string itemName
    number quantity
    date arrivalTime
  }
  User }o--o{ Group : "admin / member"
  Group |o--o{ Event : "hosts"
  User }o--o{ Event : "organises / attends"
  Group ||--o| DiscussionThread : "thread"
  Event ||--o| DiscussionThread : "thread"
  DiscussionThread ||--o{ Message : "contains"
  User ||--o{ Message : "writes"
  Message |o--o{ Message : "replies to"
  Event ||--o{ PhotoAlbum : "albums"
  PhotoAlbum ||--o{ Photo : "contains"
  User ||--o{ Photo : "uploads"
  Event ||--o{ Poll : "polls"
  Poll ||--o{ PollResponse : "responses"
  User ||--o{ PollResponse : "votes"
  Event ||--o{ TicketType : "ticketing"
  TicketType ||--o{ PurchasedTicket : "sold as"
  Event ||--o{ PurchasedTicket : "1 per email"
  Event ||--o{ ShoppingListItem : "shopping list"
  User ||--o{ ShoppingListItem : "brings"
  Event ||--o{ CarpoolOffer : "carpooling"
  User ||--o{ CarpoolOffer : "drives"

Tech stack

Runtime & API

Node.js (ESM)
Express
REST

Data

MongoDB
Mongoose
Transactions ACID

Security

JWT
bcrypt
Helmet
express-rate-limit
CORS
HTTPS / TLS

Tooling

Postman
ESLint
compression
dotenv

View the full source code (GitHub)

Express controllers, Mongoose schemas, JWT middleware and the full Postman collection.

Got a project in mind?

Data, web or textile: a single entity to connect every dot of your project.

Let's discuss your project

Our work

Projects

Skate Streetwear Collection

Fêtes de Bayonne Team Gear

Event Cups (Ecocups)

Art & Street-Culture Merchandising

Custom Zip Hoodies

Polo Team Kit & Sportswear

E-commerce Redesign & Visual Identity - La Yeyette au Rhum

Showcase Website Redesign - Pavillons de l'Atlantique

Intelligent Multi-Model System — Customer Retention & Revenue Risk

AISCA - Semantic & Generative AI Agent

Urban Data Explorer - Housing Dashboard

My Social Network API - Backend Architecture

Hubble Lakehouse — Big Data Architecture & Space Weather