PHP / MySQL Game Development

I am looking for a skilled PHP developer who can competently write performant, secure PHP and MySQL. We run a game called https://prisonstruggle.com/ and we have a couple of new features / changes we'd like built.

Please sign up for the game and get an understanding of how it works prior to applying for the job, I would be interested to know your approach in how to tackle the attached feature set and changes.

We run on PHP 7, we use Doctrine migrations and the Doctrine DBAL. The code is partly OO, but a very loose MVC custom framework. The code base is rather old, so it's got some pretty interesting coding practices.

We use MAMP Pro or a Docker image for local development.