It would be really difficult to go part time when rest of the team is doing 60 hrs a week. You might try followings... 1. Don't compromise on total hours. Say you would work 10 hrs a day and take Friday off. 2. Spread out your vacation. For example if you have 14 days of paid vacation then you can say that you want to take every Friday off in summer. 3. Going part time would be easier if you have some legal reason such as child care, illness or regular doctor visits or care for family member. 4. Going part time is much easier when starting a new job. I've always seen that if you tell employer during the time of offer acceptance that you want to take every Friday off (because you need to visit your hometown for example) then it may get approved easily especially for senior positions. 5. Work on some weekends and compensate on other days by longer vacations. 6. Switch to contracting with your own employer. Most IT companies have contractors. You can have 3 month job followed by say 1 month off when project is in low velocity. Many companies would love this if you explain them that they can reduce cost this way by not hiring full time. In nutshell, if you are going part time and rest of your team isn't you would hurt your career from long term perspective (promotions, bonus etc). The only perfect part time jobs I've heard is in likes of carpentry, plumbing etc.

Only benefit I see using RSS in these new ideas is that you can ride on its popularity. It's not the shoe that fits all sizes. Here's my article that goes in to details of specific case.