Symfony & PHP modernization
Silex migrations, PHP 8.x upgrades, modular architectures, and observability.
My background
Senior PHP/Symfony backend developer at fulll
I have been building web platforms for over twenty years. Today I'm a senior PHP, Symfony, and PostgreSQL backend developer at fulll, working on the Achats application.
Sébastien TIMONER
Senior PHP/Symfony backend developer at fulll
PHP, Symfony, PostgreSQL — twenty years building web platforms
Aix-en-Provence, France
I work on fulll's Achats application, the module that centralises supplier invoices within the accounting management suite.
Skills I bring
React & TypeScript front-end
Design systems, web performance, accessibility, and front-end CI/CD pipelines.
Team leadership
Coaching, documentation, and product-tech rituals that secure delivery.
How I work
Transparency
Shared plans, documented risks, and tracked metrics.
Sustainability
Technical decisions that remain maintainable and measurable long term.
Knowledge transfer
Pair programming, workshops, and documentation so the team stays autonomous.
User focus
Every rebuild starts with customer pain points and business needs.
Career highlights
- Nov 2025 – present
Senior PHP/Symfony backend developer, fulll
Senior PHP, Symfony, and PostgreSQL backend developer at fulll. I work on the Achats application, the module that centralises supplier invoices within the accounting management suite.
- Dec 2017 – Nov 2025
CTO & lead developer, offroadLabs
Eight years delivering bespoke web apps and Chrome extensions in Symfony, ReactJS, TypeScript, and Docker. Led distributed teams of about ten developers, full remote, without ever stepping away from the keyboard.
- Oct 2017 – Jul 2018
Freelance lead Symfony developer, STMicroelectronics France
Ten-month freelance engagement structuring a Symfony project for STMicroelectronics.
- Jan 2013 – Dec 2017
Freelance lead developer, STIMSYSTEM
Five years stacking builds: ionic/AngularJS mobile apps, PrestaShop B2B e-commerce infrastructure, load-balanced SMTP with DKIM/SPF, and call-centre solutions on Xivo/Asterisk/A2Billing with end-to-end TOIP integration.
- Jun – Nov 2016
CTO, zChocolat.com
Six months running tech for the premium chocolatier.
- Apr 2001 – Sep 2012
Head of development, MIOS – Mobilitech Group
Eleven and a half years on the ASUR platform: emergency-call hub for roadside terminals, J2EE/Oracle/MySQL architecture, analog-to-VOIP/SIP migration, Linux and Windows clusters, plus hiring and leading a five-person team.
- Jan 2000 – Jan 2001
Developer, I2E
First stripes: Delphi/Oracle business apps, a truck geolocation tool, and running the Windows NT and Novell estate.
Continue the conversation
Reach out on LinkedIn or email [email protected].