Designation Identification for Operational Roles in Partnership and Private Companies

What would be the correct designation for a person in a partnership company (ITES COMPANY) who performs the following work:

1. Client interaction.
2. Team handling - operations.
3. Day-to-day reporting to partners of the company.
4. Taking care of production on a daily basis.
5. End-to-end process from client interaction to payments from the client.
6. Project handling - (partially technical).

Dear,

I do not know whether it is for IT or ITES, but you can still designate the position as follows:

1. Head of Operations
2. DGM/GM of Operations
3. Unit Head
4. Works Manager
5. Lead Operations/Tech Lead Operations

Thank you.

What would be the correct designation for a person in a private company (Chicken Hatchery & Breeding) who performs the following work:

1. Customer interaction.
2. Team handling - Productions & Operations.
3. Daily reporting to the M.D. of the company.
4. Taking care of production on a daily basis.
5. Managing the end-to-end process from customer interaction to payments.
6. Project handling - partially technical.

I think you may designate him as:

- Work Associate
- Worker
- Marketing Executive
- Customer Representative
- All in All Person

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I have corrected the spelling, grammar, and formatting in the text. Let me know if you need further assistance.