throwaycollege
Yeah there are many options. One thing you can do if you have any other advanced qualification and work experience is directly enroll in an online master's program. Some universities allow it. Some will take passing certain exams at the same level as bachelor but those exams do not require you to spend 4 years specifically. You can take them anytime depending on knowledge.
This way, you can speech run through an advanced degree in 2 years remotely while working full time. OMSCS has good reputation and there are other solid programs.
At last, you could also do part time university targetted at adults which provide more leeway in attendance or group activities.
I'm about the same age as you.
I work full time with university (both remote and in separate timezone). There are partial remote options for CS which didn't exist before pandemic. You may only need to attend for semester and in-between exams in person and rest you can run it on your own pace.
I don't spend much time on university since there is no mandatory lecture or attendance. I know a lot of the course work already so I can do fine on submissions, exams, etc without having to attend remote lectures and watching videos.
It will take me more time than it takes for average student to graduate but that's fine.
It can be tough however especially with maths and there is no campus lifestyle.
Daily meeting is with people in 40s instead of 18-20 year olds but I love that, some may not.
I only need the degree and some formal framework so I'm not super picky about the university ranking. Most options available are not elite so that's something to consider.
They are also paid out of pocket unlike germany where university is free. It can be expensive but since I work, I don't have to worry about it.
You need to watch out for accreditation. There are few authorities in each countries with specific rules with regards to whether the degree will recognized if done part time or partially remote.
You can also get an equivalence certificate for immigration purposes.
The trade offs made sense for me. It may not for you or someone else. I'm happy with my current position.