Vercel middleware assessment and revisions

We have a middleware connecting HubSpot to N8N to support an AI-powered chatbot (custom). The original developer of this middleware is no longer available, so we need someone who can do the following: 1. Review the current settings in Vercel, as well as in the HubSpot Private App, and ensure everything is set up correctly. It is currently functioning as intended, so this would be an assessment for best practices and potential security gaps. Documentation will be provided. The review process will be in staging. Access is provided for HubSpot and Vercel, not for N8N (another team manages that account). 2. If changes are needed, a detailed brief will be created by you to outline what needs to be changed, why it needs to be changed, and the time it will take to do so. 3. Once changes are made (or if none are needed - which is the expected state), we need a set of updates made to adapt how users are validated and responded to. The framework for this in place, but some changes are needed to route users in the chat to the correct flow in N8N. Overall, I expect this to be a relatively brief project (5-7 hours estimated), but if something substantial pops up in review, we can revisit the estimate. Additionally, we will likely have more work for you in Q1 as there are substantial changes planned for the HubSpot account and its connectors. Please provide an hourly rate, your experience with jobs like this, and any questions/information you need before you could get started.