Automattic

 https://automattic.com/work-with-us/jobs/

Example posting: 

About the Job

As a Happiness Engineer (“HE”), you’ll spend around six self-scheduled hours per day helping customers via email and live chat, with constant peer support through Slack. We’re fully remote but communicate heavily – expect continuous interaction with both customers and teammates. HEs typically work 1-2 weekend days per month (with equivalent flex days off during the week). This is a snapshot of what the work looks like today, but customer service needs and norms are constantly evolving, and our daily work evolves with it, so your week might look quite different six months from now.