David Tissot

Freelance web developer since 2012, I help companies, web agencies, and institutions design, take over, maintain, and evolve robust web platforms, primarily using PHP, Drupal, Symfony, MySQL/MariaDB, JavaScript, HTML/CSS.

My core business: Drupal/PHP projects that require more than just a showcase website. I work on business platforms, extranets, user areas, dashboards, workflows, complex forms, roles and permissions, payments, API integrations, document generation, migrations, and takeover of existing systems.

I am particularly comfortable with Drupal 6 to 11: custom modules, custom entities, Views, Paragraphs, Twig, Drupal Commerce, migrations, back-office, performance, and maintenance.

My profile is full-stack with a back-end focus. I like to understand the real need before coding, structure data properly, propose realistic technical choices, and deliver maintainable solutions adapted to the client's business.

I often intervene on projects where order needs to be restored in an existing system: blocking bugs, old modules, technical debt, partial migration, or business logic that has become difficult to maintain.

Among my recent experiences: Drupal platforms with custom modules, client areas, payment workflows, API integrations, technical redesigns, migrations, and rewriting of existing applications, including a historical Perl application to PHP for the Council of Europe.

I work remotely, with clear, regular, and effective communication. I can work independently or reinforce an existing team.

What I can bring you: a reliable technical vision, a good understanding of business challenges, an ability to take over existing systems without breaking everything, maintainable code, and true autonomy.

If your project starts with "normally it's simple, but...", there's a good chance I can help.