Full-Stack
SaaS Builder

From Concept to Launch

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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.

Product & Client Work

Selected product systems and platforms

TrackImmo
View Case Study

PropTech Platform

TrackImmo

SaaS in Production

A complete real-estate prospecting SaaS platform featuring multi-role subscription management, predictive pricing algorithms, and complex data mining pipelines.

ReactShadcnSupabase+2
TrackAutos
View Case Study

Automotive Lead-Tracking SaaS

TrackAutos

SaaS in Production

Lead-tracking platform for professional car resellers with prospect management, inventory tracking, and integrated CRM functionality.

ReactPrimeReactZustand+2
DirectivAI
View Case Study

Bespoke Automation Architect

DirectivAI

Freelance Practice

Orchestrating complex workflows across diverse ecosystems. I engineer custom integrations that bridge the gap between fragmented tools—unifying CRMs, Airtable, Asana, and Google Workspace with diverse glue-code solutions like n8n, Make, Google Apps Script, and Python-based AI agents.

n8nMakeApps Script+4
Saas Builder
View Case Study

Open Source Product Toolkit

Saas Builder

Open Source

An open-source SaaS starter that shows how to wire a modern React + Supabase stack without drowning in boilerplate — from polished marketing pages to auth, billing-ready hooks, and a real database behind it.

React 19ViteTypeScript+5

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

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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