Current market status AI

I was looking for jobs and when i typed in AI, i saw a lot of jobs which need some person to develop some RAG application for them or make some chatbots. But the requirements are often times not clearly mentioned.

I see tools like langchain mentioned at some places + being able to build LLMs from scratch. If lets say i made some RAG application and a project like building GPT2 from scratch. What are my chances of getting jobs?

Any other suggestions to get a job right now, like hows the job market right now for such tech people with skills in langchain + being able to build transformers from scratch ?

Any other suggestions for upskilling myself?