HR manager

The Human Resources Management function includes a variety of activities, and key among them is deciding what staffing needs you have and whether to use independent contractors or hire employees to fill these needs, recruiting and training the best employees, ensuring they are high performers, dealing with performance issues and management practices conform to various regulations. 

Activities also include managing your approach to employee benefits and compensation, employee records and personnel policies. Usually small businesses have to carry out these activities themselves. However, they should always ensure that employees have personnel policies which conform to current regulations. These policies are often in the form which all employees have.

Note that some people distinguish a difference between HRM a major management activity and HRD Human Resource Development, a profession. Those people might include HRM in HRD, explaining that HRD includes the broader range of activities to develop personnel inside of organizations, including, e.g., career development, training, organization development, etc.

More recently, organizations consider the HR Departments playing a major role in staffing, training and helping to manage people so that people and the organization are performing at maximum capability in a highly fulfilling manner. There is a long-standing argument about where HR-related functions should be organized into large organizations should HR be in the department way around.