Contingent work or casual work is an employment relationship which is considered non-permanent. These jobs are typically part time (typically with variable hours), have limited job security, and result in payment on a piece work basis. Contingent work is usually not considered to be a career or part of a career. One of the features of contingent work is that it usually offers little or no opportunity for career development. Contingent workers are also often called freelancers, independent professionals, temporary contract workers, independent contractors, or consultants.
Contingent work is not an entirely neutral term as commentators who use the phrase generally consider it to be a social problem.Employment agencies and classified advertising media are more likely to use the phrase casual work, particularly to attract students who wish to earn money during the summer vacation but who would not consider the work as part of a long-term career. All casual work is considered to be contingent work, but not all contingent work is casual. In particular, part time jobs, or jobs in organisations that have a high staff turnover, may be considered contingent work but may not be casual.
The concept of what is now considered to be a job, where one attends work at fixed hours was rare until the Industrial Revolution. Before then, the predominant regular work was in agriculture. Textile workers would often work from home, buying raw cotton from a merchant, spinning it and weaving it into cloth at home, before selling it on.