Dimitri Jacquin

OrgaVision — Multi-tenant SaaS ERP that I designed, developed, and deployed alone, from the first line of code to production: concept, architecture, back-end, native applications, website, documentation, and infrastructure.

Unique Flutter application covering 4 platforms (iOS, Android, macOS, Windows): 500+ screens, clean architecture in 5 decoupled packages, state managed with Riverpod, full offline mode with synchronization.

Ruby on Rails 8 Back-end: API, SaaS logic, asynchronous processing, real-time (ActionCable + push), transactional emails. Multi-tenant PostgreSQL 16 database, isolated by Row-Level Security (300+ tables).

11 business modules (Construction, health, retail, restaurant, real estate, industry, beauty, sports… ) on a common foundation: CRM, quotes/invoices, electronic invoicing (EN 16931 / Factur-X), finance & accounting export FEC, HR (scheduling, leave, payroll), project management (Kanban/Gantt), catalog & stock, reservations, analytics.

Compliance & Integrations: 2026 electronic invoicing via Approved DGFiP Platform, Stripe Connect payments, Powens bank connection (PSD2), Urssaf API, TOTP two-factor authentication, AES-256 encryption, hosting in the European Union (GDPR).

I also designed and developed the public website (orgavision.fr) — marketing, blog, SEO —, wrote the product documentation, and defined the concept "everything starts with a project".

DevOps: Containerized VPS deployment (Coolify), in shared SaaS and self-hosted at the client's.

🔗 See: orgavision.fr

UON Explorer: A Technological Demonstration for Innovation

To showcase the possibilities offered by UON, "UON Explorer" is a demonstration application available on the App Store and Google Play. Designed to impress and convince, it offers a fluid and interactive experience allowing users to discover the power of expertly developed native applications.

With the Road Module, users can track their movements, analyze their routes, and share their performance. Ideal for athletes, travelers, and mobile professionals, this module includes precise GPS tracking, interactive map display, and detailed statistics (speed, elevation gain...).

The application also offers complementary modules such as:

Document scanner with OCR and PDF export (with perspective correction)

Quote and invoice management with instant conversion and sharing (demo product)

Demo UI Interface for visualizing modern and interactive designs

Interactive digital menu for restaurants and much more (A glimpse of business applications)

Each module is designed to reflect deep development expertise, offering a complete technological showcase to present clients with the potential of native applications.

A demonstration is worth a thousand explanations: with UON Explorer, try it for free and discover how your ideas can come to life with custom digital solutions.

🔗 Download now on the App Store and Google Play!

Android -> IOS ->

UON Website Development and Design: An Innovative and Mastered Approach

The creation of the UON website was a technological adventure where every detail was considered to offer a fluid, interactive, and high-performance experience. Built with Next.js 15 and a self-hosted Supabase backend via Coolify on a Hostinger VPS, this project combines power, flexibility, and security.

The website design is based on an original and interactive UI, enhanced with dynamic animations created with Rive. Each interaction has been carefully designed to maximize visitor engagement while ensuring intuitive navigation.

The site also includes a blog optimized for SEO, allowing for increased visibility on search engines. Through an effective newsletter and communication system, users can stay informed about the latest news and innovations offered by UON.

This achievement demonstrates true full-stack web development expertise, combining performance, aesthetics, and digital strategy. A project designed to captivate, inform, and convert.