Stripe back end where it makes it easy to set a future start date for a new client's subscription, pause groups of people and change payment dates of groups of people.

I am looking for a skilled programmer to help me with a Stripe back end project. The specific features needed include the ability to set a future start date for a new client's subscription, pause groups of people, and change payment dates of groups of people. The programmer should be proficient in JavaScript and have the capacity to complete the project in less than 1 week. This project is time sensitive, so please let me know and apply if you can meet the requirements.