I was very inspired by Source's mission but slightly disappointed by the interview process. Despite the application acknowledgement email saying they'd get back to me within one week and me following up by email, I only heard back after two and a half weeks. The application process was: 60m interview with recruiter and frontend engineer, take-home coding challenge (8 hours!!), 90m technical interview with lead engineer and frontend engineer and finally a 45m interview with a lead or chief-level employee. The coding challenge was interesting but far too much work for an interview process in my opinion, especially as it's unpaid and still followed by a 90m technical interview. I was told after the technical interview I would hear back by the end of the week but I didn't, and had to follow up via email TWICE before I got any response. They gave positive feedback but decided to go with somebody more senior which is fine, but I was disappointed by the lack of contact. Additionally, there were a few red flags throughout the interview process that lead me to accept a different offer regardless of their response. I think the company is doing something very cool but need to work on their communication and technical interview process.