Exchange 2016 Hybrid Setup

I need an expert to configure a hybrid setup between my on-premises Exchange 2016 and Microsoft 365.

Requirements:
- Connect existing Microsoft 365 tenant with on-premises Exchange 2016
- Ensure seamless mail flow and unified user experience
- Migrate mailboxes as needed
- Implement secure authentication and access controls

Ideal Skills:
- Extensive experience with Exchange 2016 and Microsoft 365
- Strong knowledge of hybrid configurations
- Familiarity with security protocols and authentication methods
- Ability to troubleshoot and resolve any issues during setup

Please provide examples of similar work and your approach to this project.