Should the cleaning staff of the development unit be recruited by the personnel department or the sales department?

Personnel department. The recruitment of employees in any company is the responsibility of the personnel department. The development unit is also a form of the company, and the cleaning staff are also employees of the company, and the personnel department is responsible for the recruitment of employees. The personnel department is the department that manages people and things in a unit, and it is the management department of human resources and company affairs in an enterprise or group. In a company, the sales department is responsible for the overall marketing activities, determines the company's marketing strategies and measures, and evaluates and supervises the marketing work, including public relations, sales and customer service.