UX design is a low-stress activity. Of course, assuming you enjoy doing it. (Check for low stress levels.) UX designers are generally allowed to work wherever and whenever they are most productive.
User experience (UX) design is a burgeoning discipline that encompasses a variety of roles, including user research and UX writing. Computer science, graphic design, information architecture, and computer programming are commonly studied by those interested in entering the UX design sector.
I just came across two lists of great Work-Life Balance careers, one from CBS News and the other from Indeed. Both of them rank UX designer first.
Prior to design management jobs, UX Leads are usually the top individual contributor (IC) level design positions in the firm.
To qualify as a senior, you'll need at least 5 years of experience, although it actually depends on the firm and your personal abilities. Use "years of experience" as a guide, but don't think of it as the end-all.