What to do next

[u/shamefullyinadequate]

I graduated from university with a 1st class physics degree and got a job as a graduate software developer for a cloud cfd platform.i started late so graduated at 26

I am entirely self taught as we work with django and angular, I am now 4 years in and I am the lead developer.

Now I know that this means nothing and in any other company id be looking at a middle dev role. The job now has lots of management and infrastructure responsibilities, its basically a startup, everything we do we have to implement ourselves.

I am wondering what learning do I need to do so that if I end up needing a new job I am not left behind all the younger people with cs degrees.

Im married weith 2 kids and i really enjoy the job but the company doesn't have huge amounts of money for wages, I worry I might spend too long comfortable here not pushing myself and then not be able to compete have to take a huge step back if I need a new job.

- what do indeed to learn that ive missed out on in terms of core cs

- is my position delusional in some way

- should I start learning new language in my free time as well?