1. At the time: refers to the state of holding a certain position or role at a specific time or period. It emphasizes the employment situation during a certain period of time, often used to review or describe a person's position or identity at a certain time in the past.
2. Original position: usually refers to someone's previous position or role, which is different from their current position or role. It is more about describing a person's career experience or historical employment situation, emphasizing past employment experiences.
3. Current position: refers to the position or role currently held. It describes a person's current position or identity, unrelated to past and future job changes, and is a direct expression of a person's current state.