Document User Journeys, user stories, functional & non functional requirements for SaaS product

I'm looking for a professional who can help me finalize the product documentation and user stories for my SaaS product.

Create user stories, functional and non functional requirements for a new SaaS Product.

We need project documentation to get the SaaS app ready for development .

We have a solution already and will someone to capture user journeys from this product and create user stories and project documentation.

This Information must be inputted into Azure DevOps.
User stories can be inputted in DevOps as user stories and other project documentation can be stored in the wiki.

Deliverables
Product Documentation
Functional requirements
No-Functional Requirements

User Personas
User Scenarios
User Stories

& any suggested diagrams/documentation for developers.


Key Responsibilities:
- Review the prototype and understand the product's features and functionalities
- Create comprehensive and detailed product documentation
- Develop user stories that will serve as a blueprint for the product development process

Ideal Skills and Experience:
- Previous experience in developing SaaS products
- Strong technical writing skills
- Proficiency in creating user stories
- Excellent understanding of product development lifecycle