Business administration careers focus on management or executive level positions at a company or organization. As a business administrator, your job duties may include working on the management, policies, strategies, plans, and operations of a company, a specific department, or a team within a corporation. Your responsibilities often involve working in one specialty, such as accounting, human resources, business analysis, marketing, or finances. Senior administrators may oversee overall company operations. Government agencies and nonprofit groups also hire job applicants with business administration experience for senior roles.