Full-Stack
Product Engineer

Building Production SaaS & Automation Systems

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About Me

The Architect Behind The Systems

Antoine Hostier

BUILDING DIGITAL SYSTEMS

I’m a full‑stack engineer and SaaS builder focused on turning ideas into reliable, scalable products.

I design and ship systems end‑to‑end — from data pipelines and backend architecture to UI design and polished interfaces. I move quickly, think pragmatically, and care deeply about long‑term maintainability.

I work best on ambitious products where engineering quality and user experience both matter.

Selected Work

Products + Case Studies

DirectivAI

DirectivAI

Cross-platform automation architecture for fragmented business ecosystems.

Complex multi-platform workflow orchestration
n8nMake+5
TrackImmo

TrackImmo

Real-estate prospecting SaaS with predictive pricing and multi-role workflows.

Automated property data mining pipeline
ReactShadcn+3
TrackAutos

TrackAutos

Lead-tracking and inventory platform for professional car resellers.

Unified prospect & stock management
ReactPrimeReact+3
Saas Builder

Saas Builder

Lean open-source SaaS starter with real auth, data, and billing-ready hooks.

Production-like SaaS skeleton
React 19Vite+6
Les casseroles

Les casseroles

Satirical interactive app that reframes political scandals into a card game.

Playful critical lens
Next.jsReact+1

1 / 5

+ other projects delivered across operations, product, and automation systems

Skills Matrix

The Compass Room

Frontend

React80%
Angular45%
Tailwind75%
Shadcn/UI90%
PrimeReact85%
Storybook60%
Cypress55%
TypeScript75%
Backend
AI & Data
DevOps
React80%Angular45%Tailwind75%Shadcn/UI90%PrimeReact85%Storybook60%Cypress55%TypeScript75%
Global Operations

The Atlas

Navigational Chart

FIG. 42-A
MTLPARMXCTPE

Chronicle

2018–2024
19

B.Eng. Mechanical Engineering

Education

Polytechnique Montréal

22

Academic Exchange

International

National Taiwan University

23

Academic Exchange

International

Universidad de las Américas Puebla

23

Military Officer Bootcamp

Military

13th Alpine Chasseurs Battalion

23

Freelance Software Engineer

Work

DirectivAI — AI Automation

24

Solo Developer & CTO

Work

TrackImmo — PropTech Platform

24

Solo Developer & CTO

Work

TrackAutos — Automotive SaaS

The Creed

I build products, not just features.

I ship fast, iterate faster.

My code is my craft — clean, tested, deployed.

The Laboratory

Experimental prototypes

Les Casseroles

Full-stack Next.js app with Supabase backend, filtering engine, and modular feature architecture.

TypeScriptNext.jsSupabase

VideoGen

Web app that generates short ad videos from one product image using AI idea and video pipelines.

JavaScriptViteVercel

MIPS Bubble Sort

Program to generate and sort an array of positive integers with bubble sorting method.

AssemblyMIPS

3D Car Landing Page

Three.js 3D car landing page.

JavaScriptThree.js

Iono

Radio wave propagation map simulator.

TypeScript

OSM-MCP

Geocoding and vector data query MCP for OSM data.

PythonMCP

IQ Lab

Signal analysis with UI in C.

C

LBC Client

Unofficial client for Leboncoin API.

Python

Get in Touch

The Final Door

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