Xero Open ID Connect

I am looking for a developer to help me with a Xero Open ID Connect integration. Specifically, I need user authorization functionality and interaction with APIs to generate a lead form. The project must be completed without customization for a specific region or country. See this link for more detail: https://devblog.xero.com/how-to-leverage-openid-connect-to-boost-signup-conversion-20b952cc457a