Freelancer profile translated to English.

Description

Expert in web development for over 15 years, I act as a CTO / full-stack developer to design, develop, and evolve ambitious web applications.

I specialize in PHP (Laravel), JavaScript / TypeScript (Node.js, NestJS, Next.js, React, AngularJS) and DevOps infrastructure (Docker, CI/CD, AWS/Scaleway/OVH Cloud).

I support companies end-to-end: defining architecture, developing key features, setting up scalable and secure environments, through to deployment and production monitoring. I have worked on everything from showcase websites to complex platforms (CRM, marketplaces, blockchain projects, high-performance APIs).

My role is to help you make the right technical choices, consolidate your infrastructure (performance, security, resilience) and structure your processes (Git, Docker, CI/CD) to support your product's growth.

I can also audit your existing applications (code, database, infrastructure), identify bottlenecks and propose a concrete action plan to improve performance, security and maintainability, or support and coach your technical teams on a daily basis.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Metz (up to 20km), Luxembourg (up to 10km), Paris (up to 10km)

PefTrust
Hands-on CTO
SOFTWARE PUBLISHING
August 2022 - Today (4 years)
Metz, France
As Head of IT in a startup environment, I design, deploy, and evolve complex web infrastructures to support the product and growth.

I lead a multidisciplinary IT team and ensure the quality, performance, and security of the delivered solutions.

My expertise covers the creation of multi-server architectures from scratch, the implementation of CI/CD pipelines and optimized Git/Docker workflows, as well as the automation of scalable environments capable of handling high load increases while remaining simple to operate.

On the development side, I am involved throughout the entire chain, from architecture design to production deployment, with mastery of backend and frontend technologies: PHP (Laravel), Node.js, TypeScript, NestJS, NextJS, AngularJS, as well as Java for certain specific modules.

Passionate about performance and reliability, I continuously analyze usage and server load to optimize response times, resource consumption, and system resilience.

My approach is resolutely results-oriented, with a priority on building high-performance, secure environments adapted to the rapid growth of demanding digital projects.
Team Management Full-Stack Development Infrastructure Research and Development Docker
Varlet.tech
CTO / CEO
DIGITAL AND IT
January 2009 - Today (17 years and 7 months)
Metz, France
Sales prospecting and customer relationship management (scoping needs, technical proposals, and follow-up).

Project management and global oversight: defining priorities, planning, coordinating stakeholders, and monitoring delivery.

Design and development of showcase websites, web applications, and custom e-commerce platforms.

Consulting and PHP development, integration of online payment modules, and securing payment processes.

Development of hybrid mobile applications (Cordova + AngularJS) and web applications like marketplaces.

Implementation and development of Node.js backends (APIs, application services) and community/social network sites with marketplace components.

Maintenance and evolution of a road and air transport management platform: taking over legacy code (PHP 4), bug fixing, developing new modules, adopting Gitflow, and managing migrations.

Development of a PDF document management application (versioning, access rights, file protection, integration API).

Advanced use of regular expressions for scraping, navigation simulation, and multi-IP/proxy management.

Strengthening application and infrastructure security (hardening, access controls, best practices).

Involvement in blockchain projects: monitoring, server management, nodes, and pools.
Project Management Full-Stack Development Infrastructure Needs Assessment Training
Ilium
Senior Lead Developer
TECH
April 2020 - August 2022 (2 years and 4 months)
Metz, France
Complete redesign of the web portal in ReactJS (UX, performance, maintainability).

Maintenance and evolution of mining pools (ETH, ETC, RVN, Beam, BTC) with high availability requirements.

Design and development of APIs (ExpressJS, Laravel, React front-end integrations) for client and administration portals.

Server administration and supervision (multi-region), DNS configuration, reverse proxy (Traefik), SSL, and security hardening.

Implementation of monitoring/reporting scripts and dashboards for tracking servers, pools, and clients.

Development of administration portals for managing servers, mining pools, and client accounts.

Design of a WebSockets infrastructure for real-time distribution of mining and trading data.

Crypto analysis (mining/trading) to guide technical choices and optimize infrastructure profitability.

Technical project management (scoping, prioritization, tracking) and continuous optimization of application and server performance.
Docker Blockchain Full-Stack Development React.js Network Administration