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freelance tech lead · Paris Available for new missions

Clean architectures, and teams who know how to keep them alive.

Tech lead and trainer for more than 10 years, I design applications in hexagonal architecture with TypeScript, NestJS, React and Symfony, then train your teams so they can move forward without me.

~/houssem
whoami
houssem — tech lead & trainer
stack TypeScript · NestJS · React · Symfony
archi hexagonal · DDD · TDD
also Flutter · Vue/Nuxt · Supabase · Astro
base Paris · on site or remote
  • 10+ years of experience
  • 50+ projects delivered
  • 15+ technologies mastered
They trusted me
  • ENGIE
  • Orange
  • MesDepanneurs.fr

what I do

Three ways to work together

<dev />

Fullstack development

Design and build of web and mobile applications, from APIs to front end, with code your team can take over.

  • NestJS, Symfony, Laravel
  • React, Vue / Nuxt, Astro
  • Flutter for mobile
<lead />

Tech lead and architecture

I structure your application in hexagonal architecture, set the conventions and support the team day to day.

  • Audit and redesign plan
  • Clean architecture, DDD, TDD
  • Code review and CI/CD
<train />

Training and mentoring

Tailored training built on your code, so the team masters the architecture and practices it uses.

  • In-house sessions
  • Developer mentoring
  • Hands-on workshops on your code
See the training courses

stack

Technologies and tools

The tools I use every day, chosen for the project rather than out of habit.

Backend

  • NestJS
  • Node.js
  • Symfony
  • Laravel
  • PHP
  • PostgreSQL
  • MySQL
  • MongoDB
  • Drupal

Frontend

  • TypeScript
  • JavaScript
  • React
  • Vue.js
  • Nuxt
  • Astro
  • Tailwind
  • Pinia
  • Vite

Mobile

  • Flutter
  • React Native

DevOps and data

  • Docker
  • AWS
  • Git
  • CI/CD
  • Supabase
  • Directus
  • Application métier · April 2026

    Neos

    A business-focused platform that centralizes the full command/intervention lifecycle: creation, status tracking, detailed case handling…

    Symfony · PHP · Vue.js · Nuxt

  • Projet Personnel · April 2026

    RestoSafe

    Free mobile and web app to check hygiene inspection results for 207,000+ restaurants in France. Flutter, Laravel, Astro, Go.

    Laravel · Flutter · Astro · Go

  • Mobile Development · April 2026

    Scoreboard by Trainio

    Cross-platform mobile application (iOS & Android) to run a real-time scoreboard, share it via magic link with spectators and manage tournaments.

    Flutter · Dart · BLoC · Supabase Realtime

  • Fullstack Web Development · December 2025

    Trainio

    SaaS web application for team management, training planning, tournament organization and logistics coordination designed for coaches and sports clubs.

    React · Supabase · NestJS · Hexagonal Architecture

my method

Business at the core, tools at the edge

Your business rules live in a core with no technical dependency. The framework, the database or the interface plug into it through ports: they can evolve without rewriting everything.

  1. An isolated domain

    Business code knows neither NestJS nor Symfony.

  2. Tested without a database

    Rules are checked with TDD, in a few milliseconds.

  3. Reversible technical choices

    Changing database or framework touches an adapter, not the business.

career

More than 10 years in product teams

My full background
  1. 2019 → today

    Tech Lead · MesDepanneurs.fr

    Application architecture (implementation of clean architecture) Development of a user management and ACL application for all internal applications Development of a customer complaint management application

  2. 2014 → 2019

    Lead Developer · ENGIE

    Development of a sponsorship offer management application (PHP7, CakePHP, Vue.js) Development/Maintenance (Full Stack) of multiple tools for customer service advisors

  3. 2013 → 2014

    Senior FullStack Developer · Orange

    test

About me

Passionate about code and knowledge sharing

With over 10 years of experience in web development, I specialize in creating tailor-made solutions that perfectly meet my clients' specific needs.

My dual role as a developer and trainer allows me to bring a comprehensive vision to every project, combining technical expertise and pedagogy to ensure effective knowledge transfer.

  • Development Full Stack & API
  • Training Courses & Mentoring
  • Consulting Architecture & Strategy
  • Collaboration Team & Integration
Learn more about my background

what clients say

Client reviews

[Malt review #1, copied as is]
[First Last], [role], [company] · Malt review
[Malt review #2, copied as is]
[First Last], [role], [company] · Malt review

A project to launch, or a team to grow?

Describe your context, I reply within 24 hours on weekdays.

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