Hi, I'm Nicolas.
Full-stack engineer & creative developer.

I build fast, polished web products — from expressive interfaces to robust backend systems. Currently building at Lonestone.

Get in touch
Explore the Labs

PROJECTS

Side projects, open source & experiments

  • FRONTEND14 tags
  • BACKEND09 tags
  • CREATIVE02 tags
  • SYSTEMS & AI00 tags
TASKS
06 · 03 live, 03 source
SINCE
MAR 2025
LATEST
APR 2026
06My websiteSRCgithub.com/netoun/netoun.github.ioReact · TypeScript · Vanilla Extract · React Router2026-04

My personal portfolio with a neo-retro futuristic design system, built with React Router v8 and Vanilla Extract.

05TreashuntLIVEtreashunt.comReact · Drizzle · Cloudflare · Bun · Elysia2026-03

Design unforgettable adventures. Take on exciting challenges.

04Commun'îleLIVEcommunile.frAstro · TypeScript · Tailwind CSS · anime.js · Cloudflare2025-11

Website of Commun'île, a cooperative running open, convivial places in Nantes, built in a team of three.

03Procedural MapsLIVEr-noise-map.vercel.appTypeScript · React · Three.js · Canvas2025-11

Browser-based procedural map generator using noise algorithms, rendered with Three.js and Canvas.

02NzothSRCgithub.com/lonestone/nzothOpen Source · TypeScript · NestJS · Zod2025-06

A collection of NestJS utilities for building RESTful APIs with filtering, pagination, sorting, and Zod validation.

01Lonestone BoilerplateSRCgithub.com/lonestone/lonestone-boilerplateOpen Source · TypeScript · NestJS · React · Monorepo2025-03

Starter kit for full-stack web apps, SaaS and websites with React and NestJS.

OPENLABS →

EXPERIENCE

Work history & professional experience

  • lonestone62 MOopen · HEAD
  • easilys24 MOmerged 2021-07
  • sogeti22 MOmerged 2019-07

SINCE SEP 2017 · 9Y

  1. Lonestone

    Full-stack engineer

    Nantes, FR

    5 FRONTEND · 7 BACKEND · 1 SYSTEMS & AI

    – NOW · 5Y 2M

    Shipping production web applications for clients across healthcare, SaaS and corporate platforms, with a focus on maintainable architecture, product velocity and polished user interfaces.

    • Desoutter

      MOSTLY FRONTEND

      Led the development of a modern corporate website using Next.js, Tailwind CSS, and TypeScript, delivering an enhanced digital presence for the company.

      • Next.js
      • Tailwind CSS
      • TypeScript

    • Cuevr

      MOSTLY BACKEND

      AI-powered platform for creating commercial proposals.

      • React
      • NestJS
      • AI
      • Queue
      • Streaming

    • Mon Rét@b' d'abord

      MOSTLY BACKEND

      Engineered a specialized web application to support mental health recovery, featuring self-assessment tools and wellness management features for individuals dealing with conditions like schizophrenia and bipolar disorder.

      • React
      • NestJS
      • MikroORM
      • PostgreSQL
      • Keycloak

    more client work, not listed

  2. Easilys

    Full Stack Developer

    Nantes, FR

    2 FRONTEND · 2 BACKEND

    –  · 2Y

    Development and maintenance of a web application for collective catering management. Implementation of a new user interface with React and development of new features.

    • React
    • Node.js
    • Vue
    • PostgreSQL

  3. Sogeti

    Work-Study Program

    Nantes, FR

    1 FRONTEND · 4 SYSTEMS & AI

    –  · 1Y 10M

    Development of new solutions within the innovation pole. Built a GitFlow tool in ReactJS and developed a chatbot using machine learning for emotion understanding.

    • React
    • Python
    • Rust
    • TensorFlow
    • DialogFlow

SKILLS

Stack & practice

netoun@lonestone

Role
Full-stack engineer
Host
Lonestone · Nantes, FR
Uptime
9Y · since SEP 2017
Shipped
6 projects · 3 employers · 10 labs
Stack
29 tools in 5 domains
  • PRACTICE 04
  • FRONTEND 08
  • BACKEND 13
  • CREATIVE 04
  • SYSTEMS & AI 02
  • TOOLING 02

PRACTICEagents & LLM

  • Agentic workflow

    Spec → plan → task → review → audit, one commit per task. Rules, skills and hooks shared by every agent, wired to MCP tools for browser and IDE checks.

    • works with
    Claude Code · Codex · Cursor · opencode

  • Tool-calling LLM pipelines

    Subagents call tools and return schema-validated output, turning 100+ page PDFs into structured data. Every quoted piece of evidence is checked against the source text.

    • built with
    AI SDK · zod · queues · OCR
    • receipt
    client work, not listed · Cuevr

  • LLM evaluation

    Ground-truth datasets, field-level accuracy weighted by criticality, prompt and model comparison, replay of past runs.

    • built with
    NestJS · React · Langfuse
    • receipt
    client work, not listed

  • LLMOps

    Prompts versioned in git and promoted from development to production, every step traced.

    • built with
    Langfuse · OpenTelemetry · Sentry
    • receipt
    client work, not listed

STACK

FOUND IN THE PROJECTS, JOBS, LABS OR THIS SITE

  • Frontend

    08 tools
    React: 4 projects: My website, Procedural Maps, Treashunt, Lonestone Boilerplate · 3 jobs: Lonestone, Easilys, Sogeti · this site's package.json (react)
    TypeScript: 5 projects: My website, Procedural Maps, Commun'île, Lonestone Boilerplate, Nzoth · 1 job: Lonestone · this site's package.json (typescript)
    Next.js: 1 job: Lonestone
    Vanilla Extract: 1 project: My website · this site's package.json (@vanilla-extract/css)
    Tailwind CSS: 1 project: Commun'île · 1 job: Lonestone
    React Router: 1 project: My website · this site's package.json (react-router)
    React Aria: this site's package.json (react-aria-components)
    anime.js: 1 project: Commun'île · this site's package.json (animejs)

  • Backend

    13 tools
    NestJS: 2 projects: Lonestone Boilerplate, Nzoth · 1 job: Lonestone
    Node.js: 1 job: Easilys
    PostgreSQL: 2 jobs: Lonestone, Easilys
    Drizzle: 1 project: Treashunt
    MikroORM: 1 job: Lonestone
    Bun: 1 project: Treashunt · this site's package.json (packageManager)
    Elysia: 1 project: Treashunt
    Cloudflare: 2 projects: Treashunt, Commun'île
    Keycloak: 1 job: Lonestone
    Zod: 1 project: Nzoth
    Monorepos: 1 project: Lonestone Boilerplate
    Queues: 1 job: Lonestone
    Streaming: 1 job: Lonestone

  • Creative

    04 tools
    Three.js: 1 project: Procedural Maps
    Canvas 2D: 1 project: Procedural Maps · 2 labs: glitch-signal-map, cybernetic-glyph-grid
    WebGL: 2 labs: grain-shader, mesh-background
    WebGPU: 1 lab: mesh-background

  • Systems & AI

    02 tools
    Rust: 1 job: Sogeti
    Python: 1 job: Sogeti

  • Tooling

    02 tools
    Vite: this site's package.json (vite)
    Vitest: this site's package.json (vitest)