It depends on your specific actual function. I know a Test Automation Engineer would.
You would also need to fulfil the various mandatory and optional criteria.
That would be consulting. It is explicitly mentioned that consulting / outsourcing firms would not qualify.
Maximum of 10 pieces of evidence in addition to the 3 recommendation letters.
In all, I suspect you may want to spend some time going through the Tech Nation Visa Guide at https://technation.io/visa-tech-nation-visa-guide . It is a long read but it answers some of the questions you asked explicitly.