When should I write in or at while writing on a work place?
For example, should I write
Meet John, he is a data engineer in a gaming company.
or
Meet John, he is a data engineer at a gaming company.
When should I write in or at while writing on a work place?
For example, should I write
Meet John, he is a data engineer in a gaming company.
or
Meet John, he is a data engineer at a gaming company.
At would be the preferred preposition in the case you provided, but it somewhat depends on the context.
Use at and for when describing the company.
I work at a gaming company.
I work for a gaming company.
Use on when describing the projects you do.
I work on video-games.
Use in when describing your field.
I work in video-game development.