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Open to opportunities
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Hi! I'm Lenny

👋

I help startups build AI-powered SaaS and scalable MVPs.

What I build

Here's what I can ship for you, from idea to production.

AI SaaS MVP

I help startups turn ideas into production-ready MVPs using modern, scalable stacks.

  • Authentication
  • APIs
  • AI features
  • Payments
  • Database architecture

TypeScript • NestJS • PostgreSQL

🤖

AI Integrations

Add LLM-powered features to your existing product — fast and production-ready.

  • AI assistants
  • Automated workflows
  • AI-generated content
  • Recommendation systems

OpenAI / Gemini • Node.js • APIs

📱

Mobile Apps

Cross-platform mobile applications built with React Native for any audience.

  • Startup MVPs
  • Productivity apps
  • Consumer apps
  • AI mobile assistants

React Native • Expo • TypeScript

💪

Scalable Backend

Production-ready backend systems designed to scale from day one.

  • REST APIs
  • Authentication
  • Database architecture
  • Caching & integrations

NestJS • PostgreSQL • Prisma • Docker

Languages

French

NativeFluent

English

C1Fluent

Hindi

A1Learning

Korean

A2On hold

Hard Skills

Core Stack & AI

Typescript

NestJs

React

Node.js

OpenAI / LLM

Front-end & Mobile

React Native

Tailwind

Figma

Jest

Backend & Data

Supabase

PostgreSQL

Docker

Tools & Workflow

Github

Gitlab

CI / CD

Git

Career Path

Professional Journey

Polycea

Full-stack developerCDI
May 2025 Jan 2026

Paris, France

ReactNestJSPostgreSQL

Racemappr

Mobile & Full-stackFreelance
Sept 2024 Feb 2025

Berlin, Germany

React NativeNode.js

Feelbat

Full-stack internInternship
Apr 2023 Aug 2023

Reunion Island

Epitech

Pedagogical AssistantPart-time
Sept 2022 Mar 2023

Reunion Island

Solarplexus

Software EngineerInternship
Aug 2021 Dec 2021

Reunion Island

Academic Background

Epitech

Master in Software Architect
2020 2025

Reunion Island

Inha University

Exchange Student
2023 2024

South Korea

Louis Payen

Highschool Student
2017 2020

Reunion Island

Featured Projects

A selection of my recent work, focusing on AI integrations, mobile development, and clean architecture.

MonAmiChef logo

MonAmiChef

AI-powered chef assistant specialized in personalized nutrition and recipe generation.

In progress
React Native
Typescript
Nestjs
AI / OpenAI
Tailwind
PHAR logo

PHAR

A smart playlist generator that analyzes your current mood to curate the perfect music experience.

Completed
React Native
Typescript
Nestjs
Jest
Minimalist Calorie Tracker logo

Minimalist Calorie Tracker

Focus on your macros. A clean tool to track calories, water, and protein intake without the fluff.

Completed
React Native
Typescript
Jest
PyDoku logo

PyDoku

Advanced Sudoku engine featuring a backtracking solver and an interactive UI built with PyGame.

Completed
Python

Let's build something great together

Ready for your next project?

Whether you need a Fullstack dev for a SaaS or a Mobile expert for an AI app, I'm just an email away.