Oscar employee, here. I haven't been involved in the company's COVID response (having joined only a few weeks ago), but the efforts of those I know on these tiger teams have been tremendous—spinning up risk assessments, testing locators, and more for both our site (see below) and wider usage (of which this open sourced work is one instance).
Many such teams are still in the thick of it, so juicy hackernewsy engineering write-ups (around the joys of high-pressure requirements definition, slicing code out from a private repo for public distribution, and so on) will have to wait—but hopefully, there will be some public form of them made available when things settle down.
covid resources @ the main oscar site: https://www.hioscar.com/covid19
