Hey, giving you guys a little context about me. Did my engg in cs and in my whole 4 yrs of college Ive been doing competitive programming and focused more on these coding competitions that any personal project or exploring new tech.

Then had a campus placement and started working as a app developer and ever since(4 years) I've been working as app developer.

I started learning about backend development, really loved it way more than app development. Internally in my organisation I started working on both app development and backend now.

But now I think should I try exploring other division of tech. I roughly divide it into 3 parts Devs, embedded system and ML. I really want to explore embedded system and ML. But I'm little confused whether I should do that or not. Will this affect my career in bad way??

So should I consider adding embedded system or ML in my portfolio??? Or it's too late and not a good idea as a developer.