Successful people in the music world (both on and off stage) HAVE to mingle with musicians (not other engineers) heavily to get noticed and recommended
I applied for about 50+ jobs as a graduate engineer in 1991. Back then you wrote letters. Hmmm: You printed letters - mail merge was a thing.
You signed each one by hand, with a quill pen and used a wax seal and cast a Spell of Engagement.
OK, you signed your covering letter with a pen (might be a Biro but I did use a Parker and Quink, myself) You also had to put your covering letter and curriculum vitae (CV == resume) in an envelope and pop a stamp on it (2nd class) and post it. None of that Linked In bollocks.
Your covering letter would be bespoke to the company approached. You did some research and mentioned something pertinent.
Nowadays I'm the employer.
I applied over and over using Monster dot com.
Would recommend joining a local film club, and get a few small projects done. Additionally, volunteer with local church events, or regular city music festivals.
Also, could join the local union intake for the production studios. It will be awful until one gets the base hours completed, but it is a feast or famine kind of work schedule some can tolerate. Fine work if you are still a kid.
Finding stuff online is usually a fools errand these days mostly due to "AI" data mining operations, or outright cons. Best of luck =3
It allowed me to "get my hands dirty," and experiment, as well as build a portfolio.
To this day, I have a large amount of public code. It's a habit that I've had, all my adult life.