With my enthusiasm for full-stack development, I have built a strong foundation in HTML, CSS, JavaScript, React, Node.js, and databases including MongoDB and MySQL. For your project's requirement of bidirectional sync between an old system and new databases with varying formats and reliability, my comprehensive understanding of these technologies will be a huge asset. I am adaptable to new coding languages and frameworks and I'm confident that my mastery over modern TypeScript will enable me to create well-structured and efficient serverless functions for your project.
Moreover, my experience incorporating webhooks and managing APIs successfully represents another edge that I bring to the table. I can handle diverse webhook formats intelligently and manage any token-related obstacles thrown by the old system API. My expertise extends to crafting impactful solutions even in the face of unpredictable 3rd party API behavior, ensuring that your sync process remains robust.
Lastly, as a skilled content writer with SEO optimization savvy, thorough research skills, and hawk-like attention to detail during proofreading and editing, I am reliable not only as a developer but also as someone who can deliver detailed documentation on work done. You can rest assured that your new database configuration, along with the operational serverless functions (Webhook Handler, Token Manager, Full Sync & Data Transform), would be thoroughly tested and comprehensively documented.