Improvements of the online store on Bitrix

We need a web programmer on Bitrix. Beginners do not answer, you need an average and experienced programmer. Due to the heavy load, there are not enough hands. Write who is immediately ready to join the development.

The layout is there, we are finishing the integration. It is necessary to make additional improvements for the online store. Now we carried out numerous works on the integration of layout into our assembly, then we need to finish additional functionality on the tasks of the client.
Tasks in an attached file.