Experienced Chrome Extension Developer for Whatsapp Web Automation and Side Panel Integration

We are seeking a highly skilled developer to build a Chrome Extension (Manifest V3) with robust integration into WhatsApp Web. The project requires a tool similar to existing WhatsApp Web automation solutions, focusing on enhancing user interaction and automating messaging workflows.

Required features include:
- Injecting a custom side panel directly into the WhatsApp Web ui (dom injection).
- Detecting and interacting with WhatsApp Web's message input field.
- Implementing functionality to send automated messages, including text, templates, and sequences.
- Creating and managing complex messaging flows with configurable delays and triggers.
- Integrating with an existing backend API for user login.
- Synchronizing templates and messages through a rest api.
- Utilizing chrome.storage for efficient local and synchronized data management.
- Developing a background service worker to handle automation logic.

Key Requirements:
- Strong experience with Chrome Extension development, specifically with Manifest V3.
- Proven ability to manipulate DOM elements within Single Page Application (SPA) environments.
- Excellent JavaScript and TypeScript skills.
- Capability to inspect and accurately target dynamic elements within WhatsApp Web.
- Prior experience building any WhatsApp Web extension is a significant advantage.

Deliverables:
- Clean, well-structured, and maintainable code.
- Comprehensive documentation for the extension.
- Prompt and clear communication throughout the project lifecycle.

This project has the potential to evolve into a long-term, ongoing development partnership.