Since there is Scrum i am programmer , tester , software engineer , networking guy and application manager. Thank you Scrum didnt know that before. And i have no idea what i am doing right now ....

Oh I agree. The scum team should be in itself fulfilling but doesn't mean you need to know everything, but your team as whole needs to know everything. But no, these corporates implement it like everyone to know everything. Now we are expected to know coding, business analysis, requirement gathering, testing, infra and deployment with cd automated pipeline with maintaining the scripts, all levels of support, system risk profiling and vm patching, db tuning. I love to tinker with code but at times I can't write code for weeks. Aghh.

It is implementation mistake. Scrum needs change of mindset.