Freelancer profile translated to English.

Description

Autonomous and pragmatic, I am used to transforming vague needs into concrete, usable, and quickly delivered solutions. I have a service-oriented mindset and enjoy delivering useful, easy-to-use tools that truly facilitate users' work.

I work remotely, with regular video check-ins if necessary. Occasional meetings are possible in Paris if needed.

Available immediately on a part-time basis (sabbatical leave)

Languages

French
Native or bilingual
English
Fluent
Chinese
Basic

Workplace preferences

Remote only

Primarily works remotely

Grand groupe de presse européen
Senior Full-Stack Developer • Python & Vue.js • AI & LLM
PRESS AND MEDIA
October 2019 - Today (6 years and 10 months)
92100 Boulogne-Billancourt, France
Design and production launch of the core of an AI-driven automated article generation and publication system, used on several group media sites, delivered under tight deadlines with constantly evolving specifications.
Creation of an internal LLM platform managing prompts, model selection, versioning, and per-site configurations, subsequently reused in several group AI projects.
Development of editorial tools based on the OpenAI API and WordPress plugins for journalists; mass AI workflows for tagging, translation, and TTS experiments.
Development of audience and revenue reporting tools for the monetization team, as well as an internal Prebid platform simplifying ad-tag generation across different sites.
Implementation of data pipelines: crawlers, partner API integrations, scraping automation with Playwright; Integration of Qdrant for internal meshing and development of an Android (Kotlin) PoC for push notification capture.
Stack:
◦ Python + FastAPI & SQLAlchemy
◦ Vue.js + Vuetify
◦ Vanilla JS
◦ MySQL/MariaDB
◦ LLM OpenAI/GEMINI API
◦ RAG
◦ Playwright
◦ Airflow
◦ Docker
◦ Nginx
◦ Wordpress
◦ PHP
◦ Symfony
◦ Linux/Debian
◦ Kotlin
◦ TTS
LLM Python JavaScript Vue.js Wordpress
Mondadori France Magazines / Reworld Media
PHP Developer • Technical Consultant
PRESS AND MEDIA
February 2012 - October 2019 (7 years and 8 months)
France
Maintenance and evolution of major editorial websites, with migration from PHP 5.6 to PHP 7.
Creation of internal technical supervision, reporting, and monitoring tools.
Redesign of the TV guide for telestar.fr, with daily imports for approximately 200 channels.
Technical consulting, performance/cache optimization, and improvement of deployment tools.
Stack:
◦ PHP
◦ Symfony
◦ eZ Publish
◦ MariaDB
◦ Docker
◦ Nginx
◦ Git
◦ Linux
PHP/MySQL eZ Publish JavaScript Docker Symfony
Lagardère / Newsweb & Business & Decision
PHP Developer • Technical Consultant
PRESS AND MEDIA
January 2005 - January 2012 (7 years)
France
Consultant in direct contact with clients, working for players in the media, insurance, industry, and institutional sectors: development of CMS sites, authentication systems, payment modules, dynamic form tools, and custom business applications.
Contribution to technical specifications, project management, client consulting, and skills transfer.
Stack:
◦ PHP
◦ MySQL
◦ eZ Publish
◦ LDAP
◦ SVN
◦ Solr
◦ Linux
PHP/MySQL eZ Publish JavaScript Linux

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Diploma in Internet/Intranet Service Development
AFPA
1998
Diplôme de développeur de services Internet/Intranet
Data Science MOOC in R
Johns Hopkins / Coursera
2016
Data Science MOOC in R

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Xavier Langlois

Full-Stack Developer, Python, AI Automation

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