There are many freelancing platforms where you can find JS developers jobs. Platforms like Fiverr, Upwork, Truelancer.com, and Eiliana.com; provide all kinds of development work with good authentic work profiles.
Working as a JS testing freelancer is quite easy compared to a full-time employee, and you can save up to 50% of your time.
Getting hired skill-set is the basic requirement, and also work experience and projects are excellent ways to showcase your skills. It shows you can code on actual problems and your language skills. The more complex project, the stronger impression you can create and the better freelancing opportunities you can get.