Cool to see some Aussies getting some funding. But they should use that seed funding to pack the shit up and get the hell out of Aus. Else their software should be assumed to be compromised. Cheers Aussie gov for your shit laws allowing you to force backdoor and legally preventing employees or companies from disclosing it. It sucks. You literally can't trust any software from Aus anymore.
As someone who has either written, or reviewed every single line of code in Buildkite, I can tell you that there is no backdoor. If anything, we are constantly asking ourselves “how can we protect the customer from us in the unlikely event we were compromised”. Also, with how modern software delivery works, it’s impossible for an employee to make a change without someone noticing.