Loved using Interval in the past few months at height.app. I highly recommend it if you don't want to bother building UI within your internal admin pages.
Location: Remote (US and Europe timezones) or New York
---
Height is a project management software for the whole company. We are currently 5 people, the tool is behind invite-only access. Funded by Matrix Partners, Lightspeed, Background Capital, Elad Gil, Naval Ravikant, …
First $100 = selling PhpBB skin
First $1,000 = website contracting