I work in this field so I'm incredibly biased: automated business solutions that cut entry-level data employees out of the equation. You save TONS on the bottom line, and cut out human-driven process that is error prone and difficult to manage. I'm talking about things beyond "API-driven dev", more in the realms of Puppeteer, Microsoft Office automation, screen-scraping (mouse/keyboard), etc. I make API's out of things that other devs balk at - and trust me, it has a lot of market value.
This isn't as "up and coming" as all of the other items people are mentioning, but I'd put it on a "always increasing in popularity" trajectory due to an ever-increasing need. It's not really sexy or interesting, but there will always be a HUGE market for the things that I can do =)
I will warn people that "up and coming" tech is often fad-based and has boom and bust cycles, and personally I'd rather be working for a paycheck then waiting to win the lottery in this regard.
This isn't as "up and coming" as all of the other items people are mentioning, but I'd put it on a "always increasing in popularity" trajectory due to an ever-increasing need. It's not really sexy or interesting, but there will always be a HUGE market for the things that I can do =)
I will warn people that "up and coming" tech is often fad-based and has boom and bust cycles, and personally I'd rather be working for a paycheck then waiting to win the lottery in this regard.