Deployer
Under the EU AI Act: whoever uses an AI system under their own authority in a professional capacity.
If your company uses an AI system at work, you are probably a deployer. Purely personal, non-professional use is excluded. Deployer duties are lighter than provider duties but real for high-risk systems: use it as instructed, assign competent human oversight, keep logs, and inform affected people.
In practice: An HR team using a third-party CV screening tool is a deployer of a high-risk system.
Plain-English summary of Article 3(4). The binding text is Regulation (EU) 2024/1689.