Senior React Native Developer & Founder

I build products that scale.

High-traffic mobile apps and web products — from architecture to launch. Based between Nice & Switzerland.

Get in touch
High DAU Architecture
React Native Expertise
Real-time Data Systems
Advanced SEO Strategies
AI-Driven Personalization
Fullstack Product Execution
High DAU Architecture
React Native Expertise
Real-time Data Systems
Advanced SEO Strategies
AI-Driven Personalization
Fullstack Product Execution

Real products. Real scale.

0k
daily users
Horoscope.fr
0k
daily users
iHoroscope
0k
daily users
iVoyance
0+
apps in production
live & scaling

What I do

Mastery & Intuition

Technical Leadership

Scalable architectures for apps with 50k+ DAU. I lead small dev teams, run code reviews and ship production-grade software.

Product Execution

Full product lifecycle — conception, development, launch, iteration. I think like a founder, build like a senior engineer.

Performance & Growth

SEO, real-time systems, A/B testing, analytics. Built Horoscope.fr to 50k users/day and iVoyance CA x2 in 12 months.

Selected Work

The Collection

Lead Dev

Horoscope.fr

France's #1 horoscope platform — online since 1989. I refactored and scaled the full Next.js frontend to handle 50k users/day.

Web · 50k users / dayExplore
Lead Mobile

iHoroscope

Personalized horoscopes, tarot readings, live chat with astrologers. 10k daily active users.

App · 10k users / dayExplore
Lead Mobile

iVoyance

Real-time chat platform connecting users with professional psychics. CA x2 in 12 months.

App · 2k users / dayExplore
Founder · CTO

Heartype

You receive a voice message. You read it in seconds. WhatsApp & Telegram — no app install required.

SaaS · WebExplore
Lead Mobile

MyCosmo

Mobile companion for the Cosmospace platform. Manage consultations, appointments and loyalty rewards.

App · iOS & AndroidExplore
Founder · CTO

Gatchu

A gamified social ecosystem built for massive daily engagement and community growth.

App · GamificationExplore

Maison Lanteri

is Yannick Lanteri

React NativeNext.jsTypeScriptFirebaseNode.js

About

Senior React Native developer and founder based between Nice (France) and Switzerland. 3+ years building high-traffic mobile apps at scale for Telemaque — up to 30k daily active users across 5 production apps.

I take on freelance missions for ambitious founders and product teams who need someone who thinks in systems and ships beautiful software.

Available for freelance
Nice (FR) · Crésuz (CH)
ylanteri@gmail.com

Let's build something lasting together.

Whether you're scaling a startup or building from scratch — I bring the technical depth and product intuition your project deserves.

Plant a seed