Need Google Sheets expert to implement CRM changes and improvements

Need Google Sheets expert to implement changes and enhancements to an already running file system that serves as a CRM. Some of the functions include:

- data integrations between Sheets and files,

- CRM functions (user management, automatic assignment of leads)

- sales dashboard (effectiveness of salespeople and sales processes)

- macreting dashboard (source effectiveness / lead quality analysis)

- alerts and notifications on important parameters and errors.

More details and detailed job description at the interview.

Estimated number of working hours for a person with experience: 10h

Please specify cost and availability.