More than a third (35%) of knowledge workers in the UK, US and Germany believe their jobs will not exist in five years, according to communications and collaboration firm Unify.
The study, Way We Work Study, showed that the remaining 65% of knowledge workers - defined as those who 'think for a living' - don't expect their roles to look the same.
Unify suggested the reason behind the results is a rapidly changing work environment, on-demand economy or global digital transformation, but it is clear that the impact of change in the working world is being felt from the boardroom to the employee lounge.
The study found that 'virtual' is the new reality for many teams. More than half of knowledge workers (52%) say they now work in more virtual teams than they have done in the past, and think it is a good thing.
According to two-fifths (42%) of knowledge workers, virtual teams can be more effective than face-to-face teams, and nearly half (49%) reported that their organisations operate through technology and communication rather than through offices and locations. More than a third (36%) said creative thinking is one of the biggest benefits of working with people outside of traditional, face-to-face teams.
Jon Pritchard, CEO at Unify, said: "Today, knowledge workers have an unrivalled freedom in how they connect and engage with each other. This has been provided to them, by and large, through technology.
"The Way We Work Study shows the significant impact that technology, the trend of digital transformation and the on-demand economy is currently having on the workplace. It's our belief that knowledge workers will increasingly want to define how, when and where they work. It's up to businesses to enable this behaviour and manage further disruption and change."