I interviewed with Bright Health in September 2021. I applied online and received an email about a week later requesting a phone call with a technical recruiter to go over the role.
During the phone call, the recruiter told me the interview process would consist of the following: the phone call with the tech recruiter, a technical assessment (timed HackerRank test), a Zoom call with one or more hiring managers, followed by a panel interview with members of the Bright Health hiring/engineering team.
After the recruiter call, I was assigned and completed the tech assessment. Questions were LeetCode easy/medium. My advice would be if you get stuck, just show your work and your thought process as much as possible within the code editor.
Next was the Zoom call with the hiring manager (~30min). This conversation was mostly focused on my technical and professional background. I have several years of professional SWE experience, but in a different domain than what Bright Health was specifically hiring for. The conversation was mostly me trying to make the case for how my skills could translate to their team. I thought the call went OK overall. I received a rejection email a few hours later stating that my background wasn't a close enough match for the role.
Overall, the interview process was pretty good. Everyone was really nice throughout the process, and it went super quick. From application to the end, the process only took about 3 weeks. My only complaint is having to take a tech assessment before being told my background ultimately wasn't what they were looking for.