Soon you could be competing with a robot for a job.

Amy Webb, a digital media futurist and founder of Webbmedia Group, predicts at least eight career fields are "ripe for disruption" very soon -- like in the next 10 to 20 years.

1) Toll booth operators and cashiers: People who work in the transactional space shouldn't be big fans of the Apple Watch or Apple Pay.

That's because the rise of wearable technology and mobile payment systems may make jobs like toll booth operator and grocery store cashier virtually obsolete.

2) Marketers: Powerful advertising tools of the future may allow brands to fashion their messages to customers with precision accuracy.

Webb pointed to new experiments with technologies that study customer behavior to identify what kind of ads will be most effective.

"This is pretty much unlike anything we've seen before," she said. “If these tools work, they may translate to smaller creative and strategic teams at marketing and ad firms. ”

3) Customer service: Many customer service jobs have been shipped overseas to India and other lower-paying countries. New technologies like predictive analytics could kill off more of these jobs.

4) Factory workers: Get ready for robots to steal more manufacturing jobs from humans -- at a cheaper price and without taking breaks to text their friends.

5) Financial middle men: Don't knock Bitcoin -- Its underlying technology may steal your job.

Blockchain, Bitcoin's computer program, is able to automatically process transactions and create a perfect, reliable digital record.

Webb believes blockchain will disrupt the middle men in the banking, escrow, insurance and mortgage sectors.

6) Journalists: The Internet wiped out countless newspapers, and new technology could kill even more journalism positions.

Webb, a former journalist at Newsweek and The Wall Street Journal, said the next culprit will be algorithms that allow news outlets to automatically create stories and place them on websites without human interaction. Robot journalists are already writing thousands of articles a quarter at The Associated Press.

7) Lawyers: If you're going into the legal world, veer toward litigation.

Webb believes non-litigation lawyers could soon be replaced by online form-based services like LegalZoom that can carry out simple tasks like trademark applications, wills and even divorce.

8) Phone workers: Many millennials don't have landline phones. That trend is only likely to continue with the advances of digital communication.

That means telecom companies like AT&T and Verizon could eliminate billing, operator and other positions on the telephone side of the business.

Fearing the future? These predictions will make people who work in these fields understandably cringe. But Webb isn't pessimistic about what lies ahead. One outcome may be that tomorrow's employers will value very different skillsets than today's.