1) Can I get a H1B visa for a technician position?
No, you need to demonstrate you have that special skill that others don’t have.
2) And since I have a Master from U.S., can I use those extra quotas?
No,
Can I start the PERM process as a technician?
If you have all the qualification and work experienance.
do I need to wait until I am an engineer to start my green card application?
If you have H1 visa, you can start the process anytime.