Christian Hentrich

If your PHP backend needs to be more stable, interfaces need to run cleanly, or a grown system finally needs to become understandable again, I can help.

I am a Senior Software Engineer with a focus on PHP Backend Development. My focus is on Symfony, REST APIs, MySQL, API integrations, bug fixing, technical stabilization, and the further development of existing systems.

I don't just work on new features, but especially on the areas that are often difficult in everyday life: unclear errors, unstable interfaces, slow database queries, grown legacy code, lack of structure, or code that no one wants to touch anymore.

My goal is not to rebuild everything immediately. Often, the better solution is to first understand precisely where the actual problem lies, then to clean up in a targeted way, and to make the system maintainable again step by step.

I have a lot of experience with Symfony, but I also know Laravel and classic PHP projects without a large framework. In addition, there are REST APIs, databases, external interfaces, automation, and technical architecture decisions.

Typical projects I can support:

Stabilize existing PHP or Symfony applications, develop or repair APIs, connect external systems, reduce technical debt, refactor backend code, analyze database problems, find bugs, make interfaces more robust, or bring grown systems back in a clean direction.

I work directly, pragmatically, and without unnecessary drama. What matters in the end is not that a solution sounds complicated, but that it works, remains maintainable, and holds up in real operation.