Symfony-developer in a new project

It is necessary to develop a project on Symfony Postgres YDB (Yandex Database). The project is simple (in the sense that there are few main entities), in fact, it is a catalog of offers with the ability of users to respond to them, confirm the implementation and receive payment (billing, therefore, also has to be developed).
We have a couple of months to develop the minimum working version, then there will be a couple of months to finish sawing and fixing bugs - and then we run.

At this stage, the stack used is discussed. YDB in the stack took up due to the fact that the project risks becoming high-load, so it was decided to give the infrastructure to the Yandex cloud (billing and credentials to keep in managed Postgres, everything else in YDB).

Work is remote. The work schedule is free. The minimum working time is 20 hours per week.
The main requirement: to be in touch every weekday - in case of issues that require your participation.

Skills that will definitely come in handy: PHP, Symfony (current versions), Postgres, Redis, Docker, git.
Skills that would be useful: experience in designing REST api, experience with AWS (S3, Lambda, SQS), experience with JS/TS (ideally React/ReduxToolkit/Saga), experience in developing high-load systems.

Payment is hourly, at the end of the month you issue an invoice (with minimal detail on tasks) and receive payment. If another format is preferred, we will be able to agree.

If the project could interest you, then I will be happy to answer the questions that have arisen.