What is the technical name of a Person who carries out barbecue activities?

There isn't a single, widely recognized technical name for someone who carries out barbecue activities. However, depending on the context, you could use one of these terms:

Informal:

* Griller: This is a common, informal term for someone who uses a grill, especially for barbecuing.

* Barbecuer: This is another common, informal term for someone who specializes in barbecue cooking.

* Pitmaster: This term is often used for someone who is an expert in barbecue cooking, especially those using a smoker.

Formal:

* Barbecue Chef: This term can be used for someone who is professionally trained in barbecue cooking.

* Barbecue Specialist: This term can be used for someone who has expertise in barbecue techniques and ingredients.

Ultimately, the best term to use depends on the specific context and the level of formality required.