Develop a Comprehensive Software Requirements Specification (SRS) Document

I am currently working on a project that requires the development of a comprehensive Software Requirements Specification (SRS) document. This document will be a guideline to ensure all essential requirements are met during the SDLC/SSDLC.

To achieve this, I am seeking a professional with significant experience in this field who can deliver a detailed SRS that covers all necessary aspects, including but not limited to the following:

Introduction:
Purpose
Scope
Definitions, Acronyms, and Abbreviations
References

Overall Description:
Product Perspective
Product Functions
User Characteristics
Constraints
Assumptions and Dependencies

System Requirements:
Functional Requirements
Non-Functional Requirements (e.g., performance, security, usability)
User Interfaces
External Interfaces
Performance Requirements
Design Constraints

Additional Sections:
Security Requirements
Risk Management
Development Process Overview
Documentation and Maintenance Guidelines

Specific Requirements:
Sensitivity Differentiation: The document should clearly distinguish between sensitive and non-sensitive systems requirements and have a checklist of controls/requirements.
Security, Privacy, and Risk Management: Emphasis on best practices in secure software development, risk management, and compliance with industry standards such as GDPR, ISO, and NIST
User Accessibility: Consideration of user accessibility standards like WCAG 2.1.

Desired Qualifications:
Extensive experience in creating SRS documents or similar technical specifications.
Understanding of secure software development practices, especially concerning sensitive systems.
Ability to provide clear, structured, and well-documented guidelines that can be easily followed by other professionals/vendors.