I applied online. The process took 6 weeks. I interviewed at Chainlink Labs (Wellington, Wellington) in Jul 2021
Interview
In my case, there were a total of nine rounds spanning ~six weeks, including a paid trial project and its presentation. The interviews themselves weren't super challenging, but you do need to do some homework prior if you want to be successful and aren't already actively researching or working on blockchain projects.
The onboarding is a bit bumpier than the interviews, but it's a startup and a lean team so it's understandable.
Interview questions [1]
Question 1
Lots of questions about blockchain technology, as well as my relevant background and how I'd tackle certain situations