Freelancer profile translated to English.
Back to original languageAbout Sébastien
Developer for over 20 years and an independent contractor for 10 years, I design and develop complex and robust business applications (ERP, SaaS, management tools) end-to-end, alone.
What sets me apart: I don't just deliver code. I deliver complete and structured documentation (design, architecture, user journeys, business rules). Because an application without documentation is an application that no one can evolve.
I am autonomous throughout the entire cycle: needs analysis → design → development → deployment → long-term support. You are dealing with the same person from beginning to end.
🎯 I am looking for long-term missions (several months), fully remote, on complex business applications requiring experience and architectural rigor.
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- SimplicicomSenior PHP Developer & Application ArchitectPUBLIC SECTORJune 2016 - Today (10 years)Chartres, FranceMain project, design and development of a SaaS platform for property management and social support:- ~200 active users, 770 families supported, 825 properties managed- 20+ functional modules (file management, social monitoring, billing, reporting…)- v3 in progress: complete architecture, solo development, complete and structured documentation, Symfony, React, TypeScript, API Platform- Total autonomy, from client needs analysis to production deployment
- ProDevPHP Developer & Application ArchitectENVIRONMENTALAugust 2010 - May 2016 (5 years and 9 months)Paris, FranceMain project, design and development of a custom ERP for a landscaping company:- ~30 users- Modules: quotes, orders, invoicing, tenders, basic accounting...- Solo development- Total autonomy, from client needs analysis to production deployment
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Education
- Master's degree in Object-Oriented Analysis and Design, Java/JEEMaster en Analyse et Conception Orientées Objet, Java/JEE
- Bachelor's degree in Automated Production and Computer ScienceLicence en production automatisée et informatique