Meddy Lebrun

Profile

Senior Fullstack Lead Developer with 20+ years building web and mobile applications. Dual-stack architect specialized in SaaS, CRM/ERP and e-commerce systems. Technical depth in React, Node.js, Svelte and NestJS, combined with solid Agile practice. Driven by AI automation and technical exploration, with constant tracking of emerging tools.

Skills

Methodologies

Agile, SCRUM, KANBAN, SOLID, KISS, DRY, MVC, DDD

Back-end

PHP, PHP-Symfony, Node.js, NestJS, Next.js, Express, Java, J2EE

Front-end

React, Svelte, Vue.js, Angular, React Native, TypeScript, JavaScript (ES6+), jQuery, HTML5, CSS3, Sass, Less, Bootstrap

Databases & messaging

MongoDB, MySQL, MariaDB, PostgreSQL, DB2, Redis, RabbitMQ, Socket.io

Cloud & DevOps

AWS, Google Cloud Platform, Docker, Jenkins, Ansible, Nginx, Apache, Git

Systems

Linux (Debian, CentOS), Windows, WSL

Currently exploring

Go, Rust, Python, Laravel, AI, Tauri, Angular, Vue.js, React Native, PhoneGap

Technical proficiency

Recently explored

• · Rust: built an AI chat application using Tauri and Actix Web with a Svelte UI
• · Go: built a local API interfaced with MongoDB
• · Python: applied to AI-oriented needs with LangChain

Experience

See the French archive for the original source.

1. 09/2025 03/2026

   Study & development

   Independent R&D

   Agentic architecture

   Generative AI

   09/2025 – 03/2026

   • Designed an MCP server as a data-access layer for a multi-agent system: controlled source exposure, clear access contracts
   • Built an autonomous AI agent architecture inside a messaging system: orchestration, routing, lifecycle
   • React interface for supervising autonomous AI agents
   • Set up an AI harness, context optimization, hooks and business skills
   • Authored agents and business skills (maturation, communication)
   • Integrated Anthropic SDK, n8n, Ollama into interface-driven flows

   Env: MCP, n8n, Ollama, Claude, Node.js, Python, React, Tailscale, Anthropic SDK
2. 01/2025 04/2025

   Freelance developer

   IDAE

   CRM/ERP

   Backoffice interfaces

   01/2025 – 04/2025

   • PHP: migrated the application from PHP 5.6 to PHP 8
   • MySQL: schema modeling — structuring and indexing business tables
   • MongoDB: upgraded MongoDB libraries via Mongo-ext
   • PHPUnit: set up unit testing
   • JavaScript: reworked and fixed business UI libraries, jQuery and vanilla JS components
   • Understood undocumented legacy codebase, resolved client support tickets

   Env: PHP, Node.js, MySQL, MongoDB, jQuery, Socket.io, JavaScript
3. 02/2023 06/2023

   Core Tech Lead

   FLASHVENTE

   Accessibility (RGAA)

   E-commerce

   02/2023 – 06/2023 · 5 months

   • Took over existing codebase, debugged and simplified Next.js components
   • Storybook: delivered the team component Storybook as a design-system reference
   • Optimized load times
   • Monitoring: server load tracking at runtime
   • React: React-Query migration plan, design-system consistency across the team
   • Led RGAA 4 accessibility compliance campaign
   • Agile: mentored the core team and satellite teams
   • Updated and coached working methodologies
   • Code reviews: code quality assessment and developer follow-up
   • Cross-department liaison and reporting

   Env: React, Next.js, Node, GitLab, Scrum, Kanban
4. 03/2021 02/2023

   Senior Lead Developer

   DATAVAULT

   B2B data privacy

   Big data SaaS startup

   03/2021 – 02/2023 · 2 years

   • React: built a marketplace web application for personal data
   • Figma: design and wireframing
   • AWS: Amazon Cognito authentication
   • Stripe.js: set up the payment infrastructure
   • Svelte: built a Svelte backoffice
   • Data modeling, code reviews, training
   • Full participation in UI/UX challenges

   Env: React, Svelte, Node, Express, NestJS, MUI5, React-flow, React-query, Zustand, Redux, TypeScript, Spring, MySQL, AWS
5. 06/2018 05/2020

   Fullstack developer

   TELIGO

   Management & maintenance

   Telecom sector

   06/2018 – 05/2020 · 2 years

   • PHP Symfony: built a generic REST API over MySQL with JWT tokens, single entry point for business modules
   • RBAC: migrated the REST API to RESTful with role-based access control
   • RabbitMQ: launched async relay processes
   • Wrote commands for socket.io bridging
   • Node.js: event bus — POST/socket relay routing PHP to JavaScript client; Freeswitch-style ESL module
   • React: built management applications for telephony, marketing, statistics and sales data
   • Live CRUD interface with Redux, Context, Hooks, Recoil, Socket.io
   • Redux: contributed to a hooks-based Redux module
   • Ansible/Jenkins: full setup of a telephony and web stack

   Env: PHP 7 Symfony, MySQL, Debian, Apache, Nginx, MongoDB, Git, Lua, Freeswitch, React, Redux, Node, Socket.io, NestJS, Jenkins, Ansible, Bash
6. 08/2017 07/2018

   Study & development

   MIAMCITY

   Meal delivery

   Food-tech

   08/2017 – 07/2018 · 11 months

   • Technical and business strategy consulting
   • Delivered an extensive market report on competing delivery apps
   • Socket.io: built a real-time solution combining in-house tech and third-party APIs
   • Built a responsive website and backend for advanced business management
   • PHP/MongoDB: used Mongo geoindexing
   • Node.js: heavy use of socket.io — namespaces, rooms
   • Mobile: Ionic app for monitoring ongoing deliveries

   Env: Apache, PHP 7, Ionic, Angular, JavaScript, Bash, Node, Socket.io, MongoDB, PostgreSQL, Git
7. 01/2018 06/2018

   Senior lead developer

   AZUR TELECOM

   B2C telephony

   Telecommunications

   01/2018 – 06/2018 · 6 months

   • Feasibility studies to adapt legacy systems to new web technologies (TrunkSIP)
   • Migrated raw PHP to PHP Vtiger
   • JIRA: bug ticket management for internal applications
   • Vtiger: developed an internal application evolution powered by Vtiger (TrunkSIP)
   • JavaScript: built jQuery and vanilla JS user components for business needs
   • Worked in Agile mode

   Env: Apache, PHP, JavaScript, Bash, SOAP, MongoDB, MySQL, Git, JIRA, Vtiger
8. 08/2017 06/2018

   CRM/ERP developer · Freelance

   IDAE

   Bicycle delivery

   CRM/ERP

   08/2017 – 06/2018

   • Legacy takeover: understood and maintained a DDD-designed CRM/ERP
   • MySQL: modeled and evolved business module schemas
   • Real-time UI: bicycle delivery tracking app, client/restaurant/courier interfaces
   • Built frontend business modules, application maintenance for client systems

   Env: PHP, Nginx, Docker, Node.js, Socket.io, Express, Bash, REST, MongoDB, MySQL, Vanilla JavaScript
9. 02/2015 10/2015

   Lead developer

   LOCAFLEET

   Long-term vehicle rental

   ERP/CRM

   02/2015 – 10/2015 · 9 months

   • Responsive single-page web app, originally built in 2004
   • Migrated to an Nginx / MongoDB / Node.js / Socket.io architecture for a web-based ERP/CRM

   Env: PHP, Apache, MySQL, MongoDB, Prototype, Ajax, CSS3, JavaScript, PrestaShop
10. 05/2014 12/2015

    Study & development

    BLUEWAVE CROISIÈRES

    Cruises

    E-commerce

    05/2014 – 12/2015 · 20 months

    • Built a complete cruise-sales infrastructure, website and mobile interface
    • Front and back-end, server administration
    • SOAP/XML feeds from carriers and client request processing

    Env: Linux Debian, PHP, Apache, PostgreSQL, Vanilla JavaScript, Prototype, Socket.io, CSS3, HTML5
11. 01/2010 12/2015

    Co-founder & managing partner

    EVASION VOYAGES

    Management

    Travel agency

    01/2010 – 12/2015

    • Hired, managed and trained technical and sales staff
    • Supplier relations and negotiations
    • Set up policy and tooling: mass mailing, high-traffic website, client management backoffice
    • Mobile: Android apps (PhoneGap/Cordova), jQuery, jQuery UI

    Env: LAMP, MySQL, MongoDB, SOAP
12. 09/2010 06/2011

    Web & multimedia project manager

    MEDIAPRESSE STUDIO

    Press & media

    09/2010 – 06/2011

    • Built responsive websites and internal multimedia management tools
    • Multimedia backoffice: single-page app for processing and sharing professional images
    • Built a multilingual international collection tool for an international print guide

    Env: LAMP, DB2, OSX, SVN, Zend/CodeIgniter, CSS3, HTML5, Vanilla JavaScript, XML
13. 01/2005 12/2009

    Front & backoffice developer

    MONACRUISE

    Travel

    E-commerce

    01/2005 – 12/2009 · 5 years

    • Built numerous websites for travel and cruise sales
    • Built a white-label system
    • Handled a very high-traffic environment
    • Designed and built backoffice tracking tools: request tracking, management, internal communication

    Env: CentOS, Debian, Windows, Apache, PHP, MySQL, Vanilla JavaScript
14. 06/2004 06/2005

    Backoffice developer

    BANQUE AZURA

    KYC

    Banking

    06/2004 – 06/2005 · 1 year

    • Worked on internal tools and gathered requirements across departments
    • Built internal KYC tools
    • Handled high-security and confidentiality requirements

    Env: Java, J2EE, Oracle, HTML, JavaScript, SVN
15. 01/2002 12/2003

    Study & development

    IDAE

    Multi-sector

    E-commerce

    01/2002 – 12/2003 · 2 years

    • Built merchant websites and online stores with backoffice access
    • Built a DDD-oriented ORM engine for e-shop, CRM and sports activities
    • Domains: photography, boating, motorcycles, computing, perfume, online sales

    Env: ColdFusion, PHP, Java, .NET, MySQL, Windows, OSX
16. 01/2001 12/2002

    Web developer

    TEXALINK

    B2B textile startup

    SaaS

    01/2001 – 12/2002 · 2 years

    • Innovative startup with a global B2B textile application
    • SQL, ColdFusion, Homesite, TOAD

    Env: ColdFusion, Linux, PostgreSQL, DB2, JavaScript, HTML
17. 06/2000 12/2000

    Application developer

    PEOPLECARE

    Business software

    Social sector

    06/2000 – 12/2000

    • Developed social case-tracking software

    Env: Visual Basic