If you find anything let me know. Of course here in the US the nigh-insurmountable problem with part time work is that you won't get health coverage at an affordable rate.
Yes, it's actually a bit better since "Obamacare" but still pretty ridiculous. Another is simply finding an employer who agrees to a part-time engineer. I'm typically on 3-6 major projects at any given time and it seems pretty obvious that simply dropping to 2-3 and working half the time would be a pretty easy adjustment to both sides -- but most management considers this unthinkable for some reason.
I couldn't resist chiming in here: we're doing this at Neomind Labs. We don't act as steward for front-end frameworks yet, but we're considering supporting React (I saw that you're a front-end developer).
This is the case where it might make sense to earn $100k-$200k per year and plow the majority of it into savings until you can get a fairly safe $20k return.
Might only take a few years to save the required amount.
Any suggestions?