Are you looking for a job listing, or for a job? Perhaps try to proactively contact companies you think could benefit from hiring you.
> It seems that everyone wants years of work experience, regardless of how good you are.
You can treat the years of work experience on a job listing however you want. You can think of it as an indication of the experience level they're seeking. If they ask for N years of experience in XYZ tech, and you are better at XYZ than most people who have N years of experience, then (i) apply, (ii) find a way to show how good you are.
For (ii), this should be easy if XYZ=Android, as the software you have worked on (for previous employers or on your own) is something they can run on their own phone. If it can run on a phone then it doesn't need some huge deployment effort or special build environment for them to try.
As for finding a junior position, your best bet is likely to work with a recruiter.
Your query might be a problem. Maybe in a job ad for an entry-level role they're not using "Android" in the text as they presume only "programming", "computer science", "mobile", "devices", or "java" are the skills a junior dev would have.
Also, after putting out a job ad with skills keywords, employers are flooded with crap resumes and every candidate claims to be an expert in said skill.
And maybe companies don't need junior devs devoted solely to Android but need general Java devs.