Should I build my career as Martech?

I am working in TCS as Digital marketing executive. Having 3+ Yoe. Can I build future on this. I hearing roles like Martech,Digital marketing Data Analyst etc etc. Recently I saw vacancies from Deliotte and EY as well. Moreover I have good knowledge in Java Springboot but no hands-on experience.That's why I am thinking of Martech (marketing technology).

Your suggestions are welcome. One wise suggestion will help me a lot. Thanks in advance.