I'm not in my 50's yet, but in my 40's. What's worked for me is to network. I've been lucky (maybe proactive is the way to think of it) to land in some startups

I'm not in my 50's yet, but in my 40's. What's worked for me is to network. I've been lucky (maybe proactive is the way to think of it) to land in some startups where I didn't have to do grueling interviews. I knew someone and demonstrated past work, current experience (none of them white boarding) and was able land the job. I can't stress enough that networking, meetups, community are all to your benefit. If you can become an 'authority' (think Dave Thomas of Ruby fame), then the barriers will drop more. Everything, for me, since 2001 has all been referral via network.